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  • Data  (450)
  • 1980-1984  (128)
  • 1970-1974  (322)
  • 1955-1959
  • 1980  (128)
  • 1974  (87)
  • 1970  (235)
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  • 1980-1984  (128)
  • 1970-1974  (322)
  • 1955-1959
Year
  • 1
    Publication Date: 2023-02-08
    Description: Abstract
    Description: The Institute of Seismology, University of Helsinki (ISUH) was founded in 1961 as a response to the growing public concern for environmental hazards caused by nuclear weapon testing. Since then ISUH has been responsible for seismic monitoring in Finland. The current mandate covers government regulator duties in seismic hazard mitigation and nuclear test ban treaty verification, observatory activities and operation of the Finnish National Seismic Network (FNSN) as well as research and teaching of seismology at the University of Helsinki.The first seismograph station of Finland was installed at the premises of the Department of Physics, University of Helsinki in 1924. However, the mechanical Mainka seismographs had low magnification and thus the recordings were of little practical value for the study of local seismicity. The first short-period seismographs were set up between 1956 and 1963. The next significant upgrade of FNSN occurred during the late 1970’s when digital tripartite arrays in southern and central Finland became fully operational, allowing for systematic use of instrumental detection, location and magnitude determination methods. By the end of the 1990’s, the entire network was operating using digital telemetric or dial-up methods. The FNSN has expanded significantly during the 21st Century. It comprises now 36 permanent stations. Most of the stations have Streckeisen STS-2, Nanometrics Trillium (Compact/P/PA/QA) or Guralp CMG-3T broad band sensors. Some Teledyne-Geotech S13/GS13 short period sensors are also in use. Data acquisition systems are a combination of Earth Data PS6-24 digitizers and PC with Seiscomp/Seedlink software or Nanometrics Centaurs. The stations are connected to the ISUH with Seedlink via Internet and provide continuous waveform data at 40 Hz (array) or 100-250 Hz sampling frequency. Further information about instrumentation can be found at the Institute’s web site (www.seismo.helsinki.fi). Waveform data are available from the GEOFON data centre, under network code HE, and arefully open.
    Keywords: geophysics ; seismology ; seismic noise ; earthquakes ; induced ; seismic hazard ; broad band ; velocity ; acceleration ; displacement ; Monitoring system ; Seismological stations ; In Situ/Laboratory Instruments 〉 Magnetic/Motion Sensors 〉 Seismometers ; In Situ Land-based Platforms 〉 GEOPHYSICAL STATIONS/NETWORKS
    Type: Dataset , Seismic Network
    Format: ~300G
    Format: .mseed
    Format: XML
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  • 2
    Publication Date: 2023-05-12
    Description: Abstract
    Description: Sodankylä geophysical observatory (SGO) has operated in Sodankylä in northern Finland since 1913. SGO was originally founded by the Finnish Academy of Science and Letters. Now it takes care of national and international duties studying the space and geoenvironment as an independent research organisation in the University of Oulu. SGO performs long-term measurements, builds instruments, innovates and maintains domestic and international measurements, and performs research from these measurements. The seismic observations at SGO started in Sodankylä 1956. In 2005-2006 SGO seismic stations were updated to broadband instrumentation and connected to GEOFON data center. Today, the number of seismic stations has increased to 9. The stations have Streckeisen STS-2 or Nanometrics Trillium PA/PH broadband sensors. 3 of the stations are so called Posthole stations located in borehole 7-20 m below surface. The rest of the stations are located on the surface or in a more traditional type of vault. Data acquisition systems are either Earth Data PS6-24 digitisers and PC with Seiscomp or Nanometrics Centaurs. The continuous wave form data is collected at 100 Hz sampling frequency. The VH, LH and BH channel data is available from GEOFON data center and the 100Hz HH data from SGO by request. Further information about instrumentation can be found at the Institute’s web site (https://www.sgo.fi/). Waveform data are available from the GEOFON data centre, under network code FN, and arefully open.
    Keywords: geophysics ; seismology ; seismic noise ; earthquakes ; induced ; seismic hazard ; broad band ; velocity ; acceleration ; displacement ; Broadband seismic waveforms ; Seismic monitoring ; EARTH SCIENCE 〉 SOLID EARTH 〉 TECTONICS 〉 EARTHQUAKES ; In Situ/Laboratory Instruments 〉 Magnetic/Motion Sensors 〉 Seismometers ; In Situ Land-based Platforms 〉 GEOPHYSICAL STATIONS/NETWORKS ; In Situ Land-based Platforms 〉 GEOPHYSICAL STATIONS/NETWORKS 〉 SEISMOLOGICAL STATIONS
    Type: Dataset , Seismic Network
    Format: ~300G
    Format: .mseed
    Format: XML
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  • 3
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Simonsen, R (1974): The Diatom Plankton of the Indian Ocean Expedition of RV "Meteor" 1964 - 1965. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe D Biologie, Gebrüder Bornträger, Berlin, Stuttgart, D19, 1-107
    Publication Date: 2023-07-09
    Description: During the Indian Ocean Expedition of R/V METEOR phytoplankton samples were taken with a multiple closing net (Multinet) at 103 stations. In this material the diatoms were investigated. In all 247 taxa could be identified which belong to 242 species and 5 varieties of formae of 80 genera. Of these 1 variety, 15 pecies, and 3 genera are newly described. New combinations were made for 18 species, and a number of old combinations was reinstated.
    Keywords: Abundance estimate; Actinocyclus curvatulus; Actinocyclus elongatus; Actinocyclus octonarius; Actinocyclus subtilis; Actinoptychus annulatus; Actinoptychus senarius; Actinoptychus splendens; Amphiprora alata; Amphiprora sulcata; Amphora angusta; Amphora bigibba; Amphora crassa; Amphora decussata; Amphora graffeana; Amphora granulata; Amphora robusta; Amphora spectabilis; Amphora wisei; Area/locality; Asterionella glacialis; Asterionella notata; Asterolampra grevillei; Asterolampra marylandica; Asteromphalus arachne; Asteromphalus elegans; Asteromphalus flabellatus; Asteromphalus heptactis; Asteromphalus imbricatus; Asteromphalus ingens; Asteromphalus petterssonii; Asteromphalus roperianus; Asteromphalus sarcophagus; Auricula insecta; Bacillaria paradoxa; Bacteriastrum furcatum; Bacteriastrum furcatum-hispida; Biddulphia pulchella; Biddulphia tuomeyi; Caloneis elongata; Cerataulina bergonii; Cerataulus smithii; Chaetoceros atlanticus; Chaetoceros bacteriastroides; Chaetoceros buceros; Chaetoceros coarctatus; Chaetoceros compressus; Chaetoceros curvisetus; Chaetoceros decipiens; Chaetoceros denticulatus; Chaetoceros didymus; Chaetoceros diversus; Chaetoceros lorenzianus; Chaetoceros messanensis; Chaetoceros peruvianus; Chaetoceros radicans; Chaetoceros rostratus; Chaetoceros seychellarum; Chaetoceros sumatranus; Chaetoceros tetratichon; Climacodium frauenfeldianum; Cocconeis dirupta; Cocconeis dirupta-flexella; Cocconeis distans; Cocconeis placentula; Cocconeis scutellum; Corethron criophilum; Coscinodiscus africanus; Coscinodiscus asteromphalus; Coscinodiscus centralis; Coscinodiscus concinniformis; Coscinodiscus concinnoides; Coscinodiscus crenulatus; Coscinodiscus gigas; Coscinodiscus granii; Coscinodiscus jonesianus; Coscinodiscus lineatus; Coscinodiscus nodulifer; Coscinodiscus oculus-iridis; Coscinodiscus perforatus; Coscinodiscus plicatoides; Coscinodiscus radiatus; Coscinodiscus reniformis; Coscinodiscus stellaris; Coscinodiscus thorii; CT; Cyclotella striata; Cyclotella stylorum; Cymatonitzschia marina; Cymatotheka weissflogii; Dactyliosolen mediterraneus; DEPTH, water; Detonula pumila; Diploneis bomboides; Diploneis didyma; Diploneis papula; Diploneis smithii; Ditylum sol; Ethmodiscus gazellae; Ethmodiscus rex; Ethmodiscus spp. fragments; Eucampia cornuta; Eucampia zodiacus; Fragilaria intermedia; Glyphodesmis rhombica; Gomphonema pseudexiguum; Gossleriella tropica; Grammatophora marina; Guinardia flaccida; Hantzschia amphioxys; Haslea gigantea; Haslea gretharum; Haslea hyalinissima; Haslea wawrikae; Hemiaulus hauckii; Hemiaulus membranaceus; Hemiaulus sinensis; Hemidiscus cuneiformis; Hemidiscus kanayanus; IIOE - International Indian Ocean Expedition; Indian Ocean; Lauderia annulata; Licmophora communis; Licmophora flabellata; M1; M1-track; Mastogloia minuta; Mastogloia rostrata; Mastogloia woodiana; Melosira granulata; Meteor (1964); Navicula abrupta; Navicula comoides; Navicula crucifera; Navicula directa; Navicula distantepunctata; Navicula durandii; Navicula humerosa; Navicula lorenzii; Navicula mutica; Navicula mutica forma cohnii; Navicula nivalis; Navicula protracta; Navicula salinarum; Nitzschia aequatorialis; Nitzschia bicapitata; Nitzschia braarudii; Nitzschia capuluspalae; Nitzschia closterium; Nitzschia constricta; Nitzschia cuspidata; Nitzschia dietrichii; Nitzschia distans; Nitzschia heimii; Nitzschia hybrida; Nitzschia inflatula; Nitzschia inflatula-capitata; Nitzschia interruptestriata; Nitzschia kolaczeckii; Nitzschia lineola; Nitzschia longa; Nitzschia longicollum; Nitzschia longissima; Nitzschia lorenziana; Nitzschia marina; Nitzschia maxima; Nitzschia ossiformis; Nitzschia panduriformis; Nitzschia pungens; Nitzschia pungiformis; Nitzschia sicula; Nitzschia sigma; Nitzschia sigmaformis; Nitzschia socialis; Nitzschia subfraudulenta; Nitzschia subpacifica; Number; Odontella aurita; Odontella mobiliensis; Odontella regia; Odontella rhombus; Odontella sinensis; Oestrupia musca; Pachyneis gerlachii; Palmeria hardmaniana; Paralia sulcata; Pinnularia borealis; Pinnularia cuneatoundulata; Plagiogramma staurophorum; Planktoniella sol; Pleurosigma directum; Pleurosigma indicum; Pleurosigma naviculaceum; Pleurosigma planctonicum; Podocystis spathulata; Podosira stelliger; Porosira denticulata; Protoraphis hustedtiana; Pseudoeunotia doliolus; Pseudohimantidium pacificum; Pseudotriceratium punctatum; Rhabdonema adriaticum; Rhaphoneis amphiceros; Rhaphoneis surirella; Rhaphoneis surirelloides; Rhizosolenia alata; Rhizosolenia alata-indica; Rhizosolenia bergonii; Rhizosolenia calcar-avis; Rhizosolenia castracanei; Rhizosolenia cochlea; Rhizosolenia cylindrus; Rhizosolenia hebetata; Rhizosolenia imbricata; Rhizosolenia robusta; Rhizosolenia setigera; Rhizosolenia styliformis; Roperia tesselata; Sample code/label; Skeletonema costatum; Stauroneis amphioxys; Stauroneis membranacea; Stephanopyxis palmeriana; Stephanopyxis turris; Stictodiscus californicus; Surirella fastuosa; Synedra hennedyana; Synedra indica; Thalassionema bacillaris; Thalassionema nitzschioides; Thalassiosira diporocyclus; Thalassiosira eccentrica; Thalassiosira lineata; Thalassiosira minuscula; Thalassiosira oestrupii; Thalassiosira punctigera; Thalassiosira spinosa; Thalassiosira subtilis; Thalassiosira symmetrica; Thalassiothrix delicatula; Thalassiothrix frauenfeldii; Thalassiothrix longissima; Thalassiothrix mediterranea; Thalassiothrix vanhoeffenii; Trachyneis antillarum; Trachyneis aspera; Trachyneis debyi; Triceratium broeckii; Triceratium dubium; Triceratium favus; Triceratium pentacrinus; Triceratium robertsianum; Trigonium alternans; Trigonium reticulum; Tropidoneis maxima; Tropidoneis sp.; Tropidoneis subulata; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 1337 data points
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  • 4
    Publication Date: 2023-07-09
    Keywords: Atlantische Kuppenfahrten 1967/4-7; Counting 〉400 µm fraction; Date/Time of event; DEPTH, water; Euphausia brevis; Euphausia hemigibba; Event label; HAI; Josephine Seamount; Latitude of event; Longitude of event; M9; M9c_NET023; M9c_NET026; M9c_NET027; M9c_NET030; M9c_NET031; Meganyctiphanes norvegica; Meteor (1964); Nematoscelis megalops; Stylocheiron carinatum; Stylocheiron longicorne; Stylocheiron suhmii; Thysanoessa gregaria; Thysanopoda subaequalis; Towed zooplankton net
    Type: Dataset
    Format: text/tab-separated-values, 45 data points
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  • 5
    Publication Date: 2023-07-09
    Keywords: Atlantische Kuppenfahrten 1967/4-7; Cape Blanc/Meteor Bank/Portugal; Counting 〉400 µm fraction; Date/Time of event; DEPTH, water; Euphausia brevis; Euphausia hemigibba; Euphausia mutica; Event label; HAI; Latitude of event; Longitude of event; M9; M9a_NET003; M9a_NET005; M9a_NET006; M9a_NET007; M9a_NET010; M9a_NET014; M9a_NET016; M9a_NET019; M9a_NET023; M9a_NET025; M9a_NET026; M9a_NET027; M9c_NET053; M9c_NET055; M9c_NET057; M9c_NET062; M9c_NET063; M9c_NET071; M9c_NET078; M9c_NET079; Meteor (1964); Nematobrachion flexipes; Nematoscelis megalops; Stylocheiron abbreviatum; Stylocheiron affine; Stylocheiron carinatum; Stylocheiron longicorne; Stylocheiron suhmii; Thysanoessa gregaria; Thysanopoda obtusifrons; Thysanopoda subaequalis; Towed zooplankton net
    Type: Dataset
    Format: text/tab-separated-values, 260 data points
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  • 6
    Publication Date: 2023-07-09
    Keywords: Calculated after Simpson-Index; Cape Blanc/Meteor Bank/Portugal; Counting 〉500 µm fraction; DEPTH, water; Diversity; Euphausia brevis; Euphausiacea, larvae; Euphausia hemigibba; Euphausia mutica; Euphausia sp.; Event label; Latitude of event; Longitude of event; M19; M19_NET001; M19_NET004; M19_NET005; M19_NET008; M19_NET009; M19_NET010; M19_NET011; M19_NET012; M19_NET013; M19_NET016; M19_NET026; M19_NET027; M19_NET028; M19_NET030; M19_NET037; M19_NET041; M19_NET042; M19_NET043; M19_NET044; M19_NET046; M19_NET047; M19_NET048; M19_NET049; M19_NET050; Meteor (1964); Nematobrachion flexipes; Nematobrachion sexspinosus; Nematoscelis atlantica; Nematoscelis megalops; Nematoscelis sp.; Nematoscelis tenella; Ring trawl; Rossbreiten-Expedition 1970; RTR; Stylocheiron abbreviatum; Stylocheiron carinatum; Stylocheiron elongatum; Stylocheiron longicorne; Stylocheiron sp.; Stylocheiron suhmii; Thysanoessa sp.; Thysanopoda obtusifrons; Thysanopoda subaequalis; Thysanopoda tricuspidata
    Type: Dataset
    Format: text/tab-separated-values, 575 data points
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  • 7
    Publication Date: 2023-07-09
    Keywords: 20; Counting; DEPTH, water; Dermocystidium sp.; Fungi; Labyrinthula sp.; Labyrinthuloides sp.; North Sea; Number of species; Salinity; Sample code/label; Schizochytrium aggregatum; Schizochytrium sp.; Temperature, water; Thraustochytrium aggregatum; Thraustochytrium aureum; Thraustochytrium multirudimentale; Thraustochytrium pachydermum; Thraustochytrium sp.; Ulkenia minuta; Ulkenia visurgensis; VH_06_76_482-1; VH0676; Victor Hensen; Water sample; WS
    Type: Dataset
    Format: text/tab-separated-values, 96 data points
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  • 8
    Publication Date: 2023-07-09
    Keywords: 23; Counting; DEPTH, water; Dermocystidium sp.; Fungi; Labyrinthula sp.; Labyrinthuloides sp.; North Sea; Number of species; Salinity; Sample code/label; Schizochytrium aggregatum; Schizochytrium sp.; Temperature, water; Thraustochytrium aggregatum; Thraustochytrium aureum; Thraustochytrium multirudimentale; Thraustochytrium pachydermum; Thraustochytrium sp.; Ulkenia minuta; Ulkenia visurgensis; VH_06_76_479-1; VH0676; Victor Hensen; Water sample; WS
    Type: Dataset
    Format: text/tab-separated-values, 96 data points
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  • 9
    Publication Date: 2023-07-09
    Keywords: 14; CO2BaseSleipner; Counting; DEPTH, water; Dermocystidium sp.; Fungi; Labyrinthula sp.; Labyrinthuloides sp.; North Sea; Number of species; Salinity; Sample code/label; Schizochytrium aggregatum; Schizochytrium sp.; Temperature, water; Thraustochytrium aggregatum; Thraustochytrium aureum; Thraustochytrium multirudimentale; Thraustochytrium pachydermum; Thraustochytrium sp.; Ulkenia minuta; Ulkenia visurgensis; VH_06_76_488-1; VH0676; Victor Hensen; Water sample; WS
    Type: Dataset
    Format: text/tab-separated-values, 96 data points
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  • 10
    facet.materialart.
    Unknown
    PANGAEA
    Publication Date: 2023-07-09
    Keywords: 55-433; 55-433A; Abundance; Actinocyclus curvatulus; Actinocyclus divisus; Actinocyclus ehrenbergii; Actinocyclus ehrenbergii var. tenella; Actinocyclus ellipticus; Actinocyclus ellipticus elongatus; Actinocyclus ellipticus forma lanceolata; Actinocyclus ingens; Actinocyclus ochotensis; Actinocyclus oculatus; Actinocyclus tsugaruensis; Actinoptychus undulatus; Asterolampra acutiloba; Asterolampra grevillei; Asterolampra marylandica; Asteromphalus darwinii; Asteromphalus flabellatus; Asteromphalus hookeri; Asteromphalus hungaricus; Asteromphalus robustus; Cocconeis costata; Coscinodiscus curvatulus; Coscinodiscus endoi; Coscinodiscus lewisianus; Coscinodiscus marginatus; Coscinodiscus nodulifer; Coscinodiscus oculus-iridis; Coscinodiscus stellaris; Coscinodiscus symbolophorus; Coscinodiscus tabularis; Cosmiodiscus insignis; Counting, diatoms; Deep Sea Drilling Project; Denticula hyalina; Denticula kamtschatica; Denticula lauta; Denticula punctata; Denticula seminae; Denticula seminae fossilis; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Diatom preservation; Diatom zone; Diploneis bombus; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Epoch; Event label; Glomar Challenger; Hemidiscus cuneiformis; Leg55; Mediaria splendida; Nitzschia cf. oceanica; Nitzschia fossilis; Nitzschia jouseae; Nitzschia marina; Nitzschia miocenica; Nitzschia reinholdii; Nitzschia rolandii; Nitzschia suikoensis; North Pacific/SEAMOUNT; Planktoniella sol; Pseudoeunotia doliolus; Rhabdonema japonicum; Rhizosolenia barboi; Rhizosolenia bergonii; Rhizosolenia curvirostris; Rhizosolenia hebetata forma hiemalis; Rhizosolenia sp.; Rhizosolenia styliformis; Rouxia californica; Rouxia naviculoides; Rouxia yabei; Sample code/label; Stephanopyxis turris; Synedra jouseana; Thalassionema nitzschioides; Thalassiosira aff. borealis; Thalassiosira antiqua; Thalassiosira borealis; Thalassiosira convexa; Thalassiosira decipiens; Thalassiosira eccentrica; Thalassiosira eccentrica var. fasiculatus; Thalassiosira eccentrica var. jouseae; Thalassiosira eccentrica var. leasareolatus; Thalassiosira gravida; Thalassiosira gravida fossilis; Thalassiosira hyalina; Thalassiosira jacksonii; Thalassiosira leptopus; Thalassiosira lineata; Thalassiosira miocenica; Thalassiosira oestrupii; Thalassiosira opposita; Thalassiosira plicata; Thalassiosira praeconvexa; Thalassiothrix longissima
    Type: Dataset
    Format: text/tab-separated-values, 4226 data points
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  • 11
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    Unknown
    PANGAEA
    In:  Supplement to: Weigmann, Renate (1970): Zur Ökologie und Ernährungsbiologie der Euphausiaceen (Crustacea) im Arabischen Meer. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe D Biologie, Gebrüder Bornträger, Berlin, Stuttgart, D5, 11-52
    Publication Date: 2023-07-09
    Description: In the present paper, the ecology and feeding habits of euphausiids are described. The samples were taken at the time of the NE-monsoon (1964/65) by R. V. "Meteor" in the Arabian Sea and adjacent waters. 24 species were determined. According to distribution of the species, the following marine areas can be distinguished: Arabian Sea: 24 species, dominant are Euphausia diomedeae, E. tenera, E. distinguenda, Stylocheiron carinatum. Gulf of Aden: 10 species, dominant are Euphausia diomedeae, E. distinguenda. Red Sea: 6 species, dominant are Euphausia diomedeae, E. distinguenda. Gulf of Oman : 5 Species, dominant are Euphausia distinguenda, Pseudeupbaufia latifrons. Persian Gulf: 1 species - Pseudeuphausia latifrons. The total number of euphausiids indicate the biomass of this group. High densities of euphausiids (200-299 and 〉 300 individuals/100 m**3) occur in the innermost part of the Gulf cf Aden, in the area south of the equator near the African east coast, near Karachi (Indian west coast) and in the Persian Gulf. Comparison with data relating to production biology confirms that these are eutrophic zones which coincide with areas in which upwelling occurs at the time of the NE-monsoon. The central part of the Arabian Sea differs from adjacent waters by virtue of less dense euphausiid populations (〉 199 individuals/100 m**3). Measurements relating to production biology demonstrate a relatively low concentration of primary food sources. Food material was ascertained by analysis of stomach content. The following omnivorous species were examined: Euphausia diomedeae, E. distinguenda, E. tenera, Pseudeuphausia latifrons and Thysanopoda tricuspidata. Apart from crustacean remains large numbers of Foraminifera, Radiolaria, tintinnids, dinoflagellates were found in the stomachs. Quantitatively crustaceans form the most important item in the diet. Food selection on the basis of size and form appears to be restricted to certain genera of tintinnids. The genera Stylocheiron and Nematoscelis are predators. Only crustacean remains were found in the stomachs of Stylocheiron abbreviatum, whereas Radiolaria, Foraminifera and tintinnids occurred to some extent in Nematasceli sp. Different euphausiids in the food chain in the Arabian Sea. In omnivorous species the position is variable, since they not only feed by filtering autotrophic and heterotrophic Protista, but also by predation on zooplankton. Carnivorous species without filtering apparatus feed exclusively on zooplankton of the size of copepods. Only these species are well established as occupying a higher position in the food chain. The parasitic protozoan Tbalassomyces fagei was found on Euphausia diomedeae, E. fenera, E. distinguenda and E. sanzoi.
    Keywords: Arabian Sea; DEPTH, water; Eastern Arabian Sea; Euphauaia diomedeae; Euphausia brevis; Euphausiacea; Euphausia distinguenda; Euphausia mutica; Euphausia paragibba; Euphausia pseudogibba; Euphausia sanzoi; Euphausia similis; Euphausia tenera; Event label; Golf of Aden, Arabian Sea; Gulf of Oman; IIOE - International Indian Ocean Expedition; Indian Ocean Standard Net; IOSN; Latitude of event; Longitude of event; M1; M1_042; M1_049; M1_052; M1_062; M1_066; M1_071; M1_073; M1_077; M1_093; M1_094; M1_101; M1_104; M1_106; M1_109; M1_113; M1_114; M1_115; M1_124; M1_126; M1_129; M1_132; M1_134; M1_135; M1_136; M1_137; M1_139; M1_141; M1_145; M1_146; M1_147; M1_149; M1_150; M1_151; M1_153; M1_157; M1_158; M1_167; M1_173; M1_175; M1_180; M1_181; M1_182; M1_183; M1_184; M1_186; M1_194; M1_195; M1_197; M1_199; M1_200; M1_205; M1_209; M1_210; M1_214; M1_218; M1_220; M1_222; M1_225; M1_233; M1_234; M1_235; M1_236; M1_238; M1_239; M1_243; M1_244; M1_245; M1_247; M1_248; M1_253; M1_275; M1_277; M1_293; M1_294; M1_373; M1_379; M1_380; M1_381; M1_NET042; M1_NET049; M1_NET052; M1_NET062; M1_NET066; M1_NET071; M1_NET073; M1_NET077; M1_NET093; M1_NET094; M1_NET101; M1_NET104; M1_NET106; M1_NET109; M1_NET113; M1_NET114; M1_NET115; M1_NET124; M1_NET126; M1_NET129; M1_NET132; M1_NET134; M1_NET135; M1_NET136; M1_NET137; M1_NET139; M1_NET141; M1_NET145; M1_NET146; M1_NET147; M1_NET149; M1_NET150; M1_NET151; M1_NET153; M1_NET157; M1_NET158; M1_NET167; M1_NET173; M1_NET175; M1_NET180; M1_NET181; M1_NET182; M1_NET183; M1_NET184; M1_NET186; M1_NET194; M1_NET195; M1_NET197; M1_NET199; M1_NET200; M1_NET205; M1_NET209; M1_NET210; M1_NET214; M1_NET218; M1_NET220; M1_NET222; M1_NET225; M1_NET233; M1_NET234; M1_NET235; M1_NET236; M1_NET238; M1_NET239; M1_NET243; M1_NET244; M1_NET245; M1_NET247; M1_NET248; M1_NET253; M1_NET275; M1_NET277; M1_NET293; M1_NET294; M1_NET373; M1_NET379; M1_NET380; M1_NET381; Meteor (1964); Nematobrachion flexipes; Nematoscelis sp.; Nematoscelis tenella; Northern Arabian Sea; Number of species; Persian Gulf; Pseudeuphausia latifrons; Red Sea; Stylocheiron abbreviatum; Stylocheiron affine; Stylocheiron carinatum; Stylocheiron longicorne; Stylocheiron microphthalma; Stylocheiron suhmii; Thysanopoda aequalis; Thysanopoda monacantha; Thysanopoda obtusifrons; Thysanopoda tricuspidata; Western Arabian Sea
    Type: Dataset
    Format: text/tab-separated-values, 2440 data points
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  • 12
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Hesthagen, Ivar H (1970): On the near-bottom plankton and benthic invertebrate fauna of the Josephine Seamount and the Great Meteor Seamount. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe D Biologie, Gebrüder Bornträger, Berlin, Stuttgart, D8, 61-70
    Publication Date: 2023-07-09
    Description: 15 samples obtained with Beyer's epibenthic closing net were studied quantitatively. The numbers of epi- and endobenthic animals were found to be correlated with the volume of sediment in the samples. Among the planktonic components, calanoid copepodes were strongly predominant. In the samples obtained on the Great Meteor Seamount, very much larger numbers of these animals were caught in the daytime than at night. Possible explanations for this difference are suggested.
    Keywords: Amphipoda; Anthozoa, larvae; Appendicularia; Ascidiacea; Asteroidea; Atlantische Kuppenfahrten 1967/4-7; Bivalvia; Bryozoa; Cape Blanc/Meteor Bank/Portugal; Cephalopoda; Chaetognatha; Cirripedia; Copepoda; Counting 〉500 µm fraction; Crinoidea; Cumacea; Decapoda; Decapoda, larvae; DEPTH, sediment/rock; EBS; Echinoidea; Echiurida; Elevation of event; Epibenthic sledge; Euphausiacea; Event label; Gastropoda; Hydrozoa; IFM-GEOMAR; Josephine Seamount; Latitude of event; Leibniz-Institut für Meereswissenschaften, Kiel; Longitude of event; M9; M9_BSN007; M9_BSN008; M9_BSN009; M9_BSN010; M9_BSN012; M9_BSN013; M9_BSN014; M9_BSN015; M9_BSN018; M9_BSN019; M9_BSN020; M9_BSN021; M9_BSN022; M9_BSN023; M9_BSN024; Meteor (1964); Mysidacea; Nematoda; Ophiuroidea; Ostracoda; Pisces; Polychaeta; Porifera; Pycnogonida; Sample comment; Sample volume; Scyphozoa; Seriocarpa rhizoides; Sipunculida; Solenogastres; Thaliacea
    Type: Dataset
    Format: text/tab-separated-values, 600 data points
    Location Call Number Expected Availability
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  • 13
    Publication Date: 2023-07-09
    Keywords: 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 7; 8; 9; Aplanochytrium sp.; CO2BaseSleipner; Counting; Date/Time of event; DEPTH, water; Dermocystidium sp.; Event label; Fungi; Hyalochlorella; Labyrinthuloides sp.; Latitude of event; Limfjorden; Longitude of event; North Sea; Number of species; Oder Estuary; Salinity; Sample code/label; Schizochytrium aggregatum; Schizochytrium sp.; Temperature, water; Thraustochytrium aggregatum; Thraustochytrium kinnei; Thraustochytrium multirudimentale; Thraustochytrium pachydermum; Thraustochytrium roseum; Thraustochytrium sp.; Thraustochytrium striatum; Ulkenia minuta; Ulkenia visurgensis; VH_03_76_244-1; VH_03_76_245-1; VH_03_76_246-1; VH_03_76_247-1; VH_03_76_251-1; VH_03_76_252-1; VH_03_76_253-1; VH_03_76_254-1; VH_03_76_255-1; VH_03_76_256-1; VH_03_76_257-1; VH_03_76_258-1; VH_03_76_259-1; VH_03_76_260-1; VH_03_76_261-1; VH_03_76_262-1; VH_03_76_263-1; VH_03_76_264-1; VH_03_76_265-1; VH_03_76_266-1; VH_03_76_267-1; VH_03_76_268-1; VH_03_76_269-1; VH_03_76_270-1; VH_03_76_271-1; VH_03_76_272-1; VH_03_76_273-1; VH_03_76_274-1; VH_06_76_447-1; VH_06_76_448-1; VH_06_76_452-1; VH_06_76_453-1; VH_06_76_473-1; VH_06_76_474-1; VH_06_76_475-1; VH_06_76_476-1; VH_06_76_477-1; VH_06_76_478-1; VH_06_76_479-1; VH_06_76_480-1; VH_06_76_481-1; VH_06_76_482-1; VH_06_76_483-1; VH_06_76_484-1; VH_06_76_485-1; VH_06_76_486-1; VH_06_76_487-1; VH_06_76_488-1; VH_06_76_489-1; VH_06_76_490-1; VH_06_76_491-1; VH_06_76_492-1; VH_09_76_831-1; VH_09_76_832-1; VH_09_76_834-1; VH_09_76_835-1; VH_09_76_837-1; VH_09_76_838-1; VH_09_76_839-1; VH_09_76_840-1; VH_09_76_841-1; VH_09_76_842-1; VH_09_76_843-1; VH_09_76_844-1; VH_09_76_845-1; VH_09_76_846-1; VH_09_76_847-1; VH_09_76_848-1; VH_09_76_849-1; VH_09_76_850-1; VH_09_76_851-1; VH_09_76_852-1; VH_09_76_853-1; VH_09_76_854-1; VH_09_76_855-1; VH_09_76_856-1; VH_09_76_858-1; VH_10_75_376-1; VH_10_75_377-1; VH_10_75_378-1; VH_10_75_379-1; VH_10_75_380-1; VH_10_75_381-1; VH_10_75_382-1; VH_10_75_383-1; VH_10_75_384-1; VH_10_75_385-1; VH_10_75_386-1; VH_10_75_387-1; VH_10_75_388-1; VH_10_75_389-1; VH_10_75_390-1; VH_10_75_391-1; VH_10_75_392-1; VH_10_75_393-1; VH_10_75_394-1; VH_10_75_395-1; VH_10_75_396-1; VH_10_75_397-1; VH_10_75_398-1; VH_10_75_399-1; VH_10_75_400-1; VH_12_75_521-1; VH_12_75_522-1; VH_12_75_523-1; VH_12_75_524-1; VH_12_75_525-1; VH_12_75_526-1; VH_12_75_527-1; VH_12_75_528-1; VH_12_75_529-1; VH_12_75_530-1; VH_12_75_531-1; VH_12_75_532-1; VH0376; VH0676; VH0976; VH1075; VH1275; Victor Hensen; Water sample; WS
    Type: Dataset
    Format: text/tab-separated-values, 3178 data points
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  • 14
    Publication Date: 2023-07-09
    Keywords: 17; CO2BaseSleipner; Counting; DEPTH, water; Dermocystidium sp.; Fungi; Labyrinthula sp.; Labyrinthuloides sp.; North Sea; Number of species; Salinity; Sample code/label; Schizochytrium aggregatum; Schizochytrium sp.; Temperature, water; Thraustochytrium aggregatum; Thraustochytrium aureum; Thraustochytrium multirudimentale; Thraustochytrium pachydermum; Thraustochytrium sp.; Ulkenia minuta; Ulkenia visurgensis; VH_06_76_485-1; VH0676; Victor Hensen; Water sample; WS
    Type: Dataset
    Format: text/tab-separated-values, 96 data points
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  • 15
    Publication Date: 2023-07-09
    Keywords: 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 7; 8; 9; Aplanochytrium sp.; CO2BaseSleipner; Counting; Date/Time of event; DEPTH, sediment/rock; Dermocystidium sp.; Elevation of event; Event label; Fungi; Labyrinthuloides sp.; Latitude of event; Longitude of event; North Sea; Number of species; Sample code/label; Schizochytrium sp.; Thraustochytrium aggregatum; Thraustochytrium kinnei; Thraustochytrium multirudimentale; Thraustochytrium pachydermum; Thraustochytrium sp.; Ulkenia minuta; Ulkenia visurgensis; van Veen Grab; VGRAB; VH_03_76_244-2; VH_03_76_245-2; VH_03_76_246-2; VH_03_76_247-2; VH_03_76_251-2; VH_03_76_252-2; VH_03_76_253-2; VH_03_76_254-2; VH_03_76_255-2; VH_03_76_256-2; VH_03_76_257-2; VH_03_76_258-2; VH_03_76_259-2; VH_03_76_260-2; VH_03_76_261-2; VH_03_76_262-2; VH_03_76_263-2; VH_03_76_264-2; VH_03_76_265-2; VH_03_76_266-2; VH_03_76_268-2; VH_03_76_269-2; VH_03_76_270-2; VH_03_76_271-2; VH_03_76_272-2; VH_03_76_273-2; VH_03_76_274-2; VH_06_76_447-2; VH_06_76_448-2; VH_06_76_449-2; VH_06_76_452-2; VH_06_76_453-2; VH_06_76_473-2; VH_06_76_474-2; VH_06_76_475-2; VH_06_76_476-2; VH_06_76_477-2; VH_06_76_478-2; VH_06_76_479-2; VH_06_76_480-2; VH_06_76_481-2; VH_06_76_482-2; VH_06_76_483-2; VH_06_76_484-2; VH_06_76_485-2; VH_06_76_486-2; VH_06_76_487-2; VH_06_76_488-2; VH_06_76_489-2; VH_06_76_490-2; VH_06_76_491-2; VH_06_76_492-2; VH_09_76_831-2; VH_09_76_832-2; VH_09_76_834-2; VH_09_76_835-2; VH_09_76_837-2; VH_09_76_838-2; VH_09_76_839-2; VH_09_76_840-2; VH_09_76_841-2; VH_09_76_842-2; VH_09_76_843-2; VH_09_76_844-2; VH_09_76_845-2; VH_09_76_846-2; VH_09_76_847-2; VH_09_76_848-2; VH_09_76_849-2; VH_09_76_850-2; VH_09_76_851-2; VH_09_76_852-2; VH_09_76_853-2; VH_09_76_854-2; VH_09_76_855-2; VH_09_76_856-2; VH_09_76_858-2; VH_10_75_376-2; VH_10_75_377-2; VH_10_75_378-2; VH_10_75_380-2; VH_10_75_381-2; VH_10_75_382-2; VH_10_75_383-2; VH_10_75_384-2; VH_10_75_385-2; VH_10_75_386-2; VH_10_75_387-2; VH_10_75_388-2; VH_10_75_389-2; VH_10_75_390-2; VH_10_75_391-2; VH_10_75_392-2; VH_10_75_393-2; VH_10_75_394-2; VH_10_75_395-2; VH_10_75_396-2; VH_10_75_397-2; VH_10_75_399-2; VH_10_75_400-2; VH_12_75_521-2; VH_12_75_522-2; VH_12_75_523-2; VH_12_75_524-2; VH_12_75_525-2; VH_12_75_526-2; VH_12_75_527-2; VH_12_75_528-2; VH_12_75_529-2; VH_12_75_530-2; VH_12_75_531-2; VH_12_75_532-2; VH0376; VH0676; VH0976; VH1075; VH1275; Victor Hensen
    Type: Dataset
    Format: text/tab-separated-values, 2373 data points
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  • 16
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Murdmaa, Ivar O; Avdeiko, G P (1980): Volcaniclastic constituents in the Leg 55 sediments. In: Jackson, ED; Koisumi, I; et al., (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 55, 503-505, https://doi.org/10.2973/dsdp.proc.55.119.1980
    Publication Date: 2023-07-07
    Description: This chapter was previously intended to trace volcanic episodes through the Neogene and Pleistocene geological history recorded in the sedimentary sections drilled on the Emperor seamounts. Drilling disturbance, poor core recovery, and incomplete stratigraphic sections recovered from the seamounts have frustrated that plan, however. Moreover, the Leg 55 sedimentologists found in their smear-slide studies that transported island-arc tephra is scarce in the sediments, if present at all. So we have restricted our objective to description of the volcaniclastic admixture in sediments, as determined by mineralogical and geochemical data. We studied geochemistry of bulk samples (see Murdmaa et al., 1980), coarse-fraction mineralogy, and additional smear slides. The results obtained, however, do not tell much more about the volcaniclastic matter than did shipboard core descriptions.
    Keywords: 55-430; 55-432; 55-433A; 55-433B; Apatite; Barite; Carbonates; Clinopyroxene; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Epidote; Event label; Feldspar; Garnet; Glomar Challenger; Heavy minerals; Hornblende; Iron oxide; Latitude of event; Leg55; Light minerals; Longitude of event; North Pacific/SEAMOUNT; North Pacific/SEDIMENT POND; North Pacific/TERRACE; Opal, biogenic silica; Opaque minerals; Orthopyroxene; Plagioclase; Pyrite, FeS2; Quartz; Sample code/label; Smear slide analysis; Sphene; Volcanic glass; Zeolite; Zircon
    Type: Dataset
    Format: text/tab-separated-values, 286 data points
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  • 17
    Publication Date: 2023-07-07
    Keywords: 57-439; Biotite; Calcite; Chert; Clinopyroxene; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Grain size, maximum; Hornblende; Leg57; Limestone; North Pacific/TRENCH; Sample code/label; Sandstone; Smear slide analysis; Volcanic fragments
    Type: Dataset
    Format: text/tab-separated-values, 88 data points
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  • 18
    Publication Date: 2023-07-07
    Keywords: 56-434; 56-434A; 56-434B; 56-435; 56-435A; 56-436; 57-438; 57-438A; 57-439; 57-440; 57-440A; 57-440B; Actinolite; Anatase; Apatite; Barite; Biotite; Carbonates; Chalcedony; Chlorite; Clinopyroxene; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Epidote; Event label; Feldspar; Garnet; Glauconite; Glomar Challenger; Heavy minerals; Hornblende; Iron oxide; Latitude of event; Leg56; Leg57; Leucoxene; Longitude of event; Minerals; North Pacific/BASIN; North Pacific/RIDGE; North Pacific/TRENCH; Olivine; Opal, biogenic silica; Opaque minerals; Orthopyroxene; Phosphate; Plagioclase; Pyrite, FeS2; Quartz; Quartz/Feldspar ratio; Ratio; Rhodochrosite (2.84 Å); Rutile; Sample code/label; Sphene; Volcanic glass; Volcanic glass, acidic; X-ray diffraction (XRD); Zeolite; Zircon
    Type: Dataset
    Format: text/tab-separated-values, 2437 data points
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  • 19
    Publication Date: 2023-07-07
    Keywords: 55-432A; Apatite; Clinopyroxene; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg55; North Pacific/TERRACE; Olivine; Opaque minerals; Plagioclase; Sample code/label; Volcanic glass
    Type: Dataset
    Format: text/tab-separated-values, 49 data points
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  • 20
    Publication Date: 2023-07-10
    Keywords: Aluminium oxide; Archive of Ocean Data; ARCOD; Barium; Boron; Calcium oxide; Carbon dioxide; Chromium; Cobalt; Copper; DM1402-D2; DM17; Dmitry Mendeleev; Dredge; DRG; Fluorine; Hafnium; Iron oxide, Fe2O3; Iron oxide, FeO; Lithium; Magnesium oxide; Manganese oxide; Nickel; Niobium; Philippine Sea; Phosphorus pentoxide; Potassium oxide; Rubidium; Sample code/label; Sample type; Scandium; Silicon dioxide; Sodium oxide; Strontium; Sum; Tantalum; Thorium; Titanium dioxide; Uranium; Vanadium; Water in rock; Yttrium; Zinc; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 477 data points
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  • 21
    facet.materialart.
    Unknown
    PANGAEA
    Publication Date: 2023-07-10
    Keywords: 55-431; 55-431A; Abundance; Actinocyclus curvatulus; Coscinodiscus marginatus; Coscinodiscus nodulifer; Coscinodiscus tabularis; Counting, diatoms; Deep Sea Drilling Project; Denticula seminae; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Diatom preservation; Diatoms; Diatom zone; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Epoch; Event label; Glomar Challenger; Leg55; North Pacific/TERRACE; Pseudoeunotia doliolus; Sample code/label; Thalassionema nitzschioides; Thalassiosira leptopus; Thalassiosira lineata; Thalassiosira oestrupii; Thalassiothrix longissima
    Type: Dataset
    Format: text/tab-separated-values, 95 data points
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  • 22
    Publication Date: 2023-07-10
    Keywords: 55-433C; Cerium; Cerium, standard deviation; Chromium; Chromium, standard deviation; Cobalt; Cobalt, standard deviation; Comment; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Europium; Europium, standard deviation; Glomar Challenger; Hafnium; Hafnium, standard deviation; Holmium; Holmium, standard deviation; Instrumental neutron activation analysis (INAA); Lanthanum; Lanthanum, standard deviation; Leg55; Lutetium; Lutetium, standard deviation; Neodymium; Neodymium, standard deviation; North Pacific/SEAMOUNT; Samarium; Samarium, standard deviation; Sample code/label; Scandium; Scandium, standard deviation; Tantalum; Tantalum, standard deviation; Terbium; Terbium, standard deviation; Thorium; Thorium, standard deviation; Unit; Ytterbium; Ytterbium, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 335 data points
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  • 23
    Publication Date: 2023-07-10
    Keywords: 55-430A; 55-432A; 55-433A; 55-433B; 55-433C; Aluminium; Aluminium oxide; Calculated based on oxygen number; Chromium; Chromium(III) oxide; Deep Sea Drilling Project; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Electron microprobe (EMP); Elevation of event; Event label; Glomar Challenger; Identification; Iron 2+; Iron 3+; Iron oxide, Fe2O3; Iron oxide, FeO; Latitude of event; Leg55; Longitude of event; Magnesium; Magnesium oxide; Magnetite; Manganese; Manganese oxide; North Pacific/SEAMOUNT; North Pacific/SEDIMENT POND; North Pacific/TERRACE; Number of oxygens; Rock type; Sample code/label; Titanium; Titanium dioxide; Total; Ulvöspinel; Unit
    Type: Dataset
    Format: text/tab-separated-values, 552 data points
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  • 24
    Publication Date: 2023-07-10
    Keywords: Aluminium oxide; Archive of Ocean Data; ARCOD; Barium; Boron; Calcium oxide; Carbon dioxide; Chromium; Cobalt; Comment; Copper; DM1403-D; DM1431-D; DM17; Dmitry Mendeleev; Dredge; DRG; Elevation of event; Elevation of event 2; Event label; Fluorine; Hafnium; Iron oxide, Fe2O3; Iron oxide, FeO; Latitude of event; Latitude of event 2; Lithium; Longitude of event; Longitude of event 2; Magnesium oxide; Manganese oxide; Nickel; Niobium; Philippine Sea; Phosphorus pentoxide; Potassium oxide; Rubidium; Sample code/label; Sample type; Scandium; Silicon dioxide; Sodium oxide; Strontium; Sum; Tantalum; Thorium; Titanium dioxide; Uranium; Vanadium; Water in rock; Yttrium; Zinc; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 205 data points
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  • 25
    Publication Date: 2023-07-10
    Keywords: Aluminium oxide; Archive of Ocean Data; ARCOD; Barium; Boron; Calcium oxide; Carbon dioxide; Chromium; Cobalt; Copper; DM1404-D; DM17; Dmitry Mendeleev; Dredge; DRG; Fluorine; Hafnium; Iron oxide, Fe2O3; Iron oxide, FeO; Lithium; Loss on ignition; Magnesium oxide; Manganese oxide; Nickel; Niobium; Philippine Sea; Phosphorus pentoxide; Potassium oxide; Rubidium; Sample code/label; Sample type; Scandium; Silicon dioxide; Sodium oxide; Strontium; Sum; Tantalum; Thorium; Titanium dioxide; Uranium; Vanadium; Water in rock; Yttrium; Zinc; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 485 data points
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  • 26
    Publication Date: 2023-07-10
    Keywords: Aluminium oxide; Archive of Ocean Data; ARCOD; Barium; Boron; Calcium oxide; Carbon dioxide; Chromium; Cobalt; Copper; DM1398-D; DM17; Dmitry Mendeleev; Dredge; DRG; Fluorine; Hafnium; Iron oxide, Fe2O3; Iron oxide, FeO; Lithium; Loss on ignition; Magnesium oxide; Manganese oxide; Nickel; Niobium; Philippine Sea; Phosphorus pentoxide; Potassium oxide; Rubidium; Sample code/label; Sample type; Scandium; Silicon dioxide; Sodium oxide; Strontium; Sum; Tantalum; Thorium; Titanium dioxide; Uranium; Vanadium; Water in rock; Yttrium; Zinc; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 257 data points
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  • 27
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    In:  P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow
    Publication Date: 2023-07-10
    Keywords: 42-379A; 42-380; 42-380A; 42-381; Achnanthes brevipes; Actinocyclus divisus; Actinocyclus ehrenbergii; Actinocyclus normannii; Actinocyclus ochotensis; Actinoptychus undulatus; Amphiprora gigantea; Amphora variabilis; Black Sea; Chaetoceros danicus; Chaetoceros peruvianus; Coscinodiscus hungaricus; Coscinodiscus stockesianus; Cyclotella caspia; Cyclotella corona; Cyclotella kutzingiana; Cyclotella praekutzingiana; Cyclotella proshkinae; Cyclotella servant-vildary; Cyclotella servant-vildary elegans; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Epoch; Event label; Glomar Challenger; Gyrosigma acuminatum; Hemiaulus hauckii; Latitude of event; Leg42; Lithologic unit/sequence; Longitude of event; Melosira bellicosa; Melosira elegans; Melosira hibschii; Melosira papilio; Melosira praegranulata; Melosira praeislandica; Microscopy; Period; Rhaphoneis maeotica; Rhizosolenia alata; Rhizosolenia bezrukovii; Rhizosolenia calcar-avis; Rhizosolenia setigera; Sample code/label; Stephanodiscus astraea; Stephanodiscus carconensis; Stephanodiscus dubius; Stephanodiscus hantzschii; Stephanodiscus marginatus; Stephanodiscus pontica; Stephanodiscus prohantzschii; Surirella striatula; Thalassionema nitzschioides; Thalassiosira maeotica; Thalassiosira makarovae; Thalassiosira oestrupii; Thalassiosira subsalina
    Type: Dataset
    Format: text/tab-separated-values, 1566 data points
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  • 28
    Publication Date: 2023-07-10
    Keywords: Ammonia beccarii; Ammoscalaria runiana; Ammotium cassis; Bulimina marginata; Bulimina sp.; Buliminella elegantissima; Cibicides lobatulus; Cribrononion albiumbilicatum; Cribrononion asklundi; Cribrononion excavatum; Cribrononion incertum; Cribrononion pauciloculum; Dentalina sp.; Eggerella scabra; Fursenkoina fusiformis; Globigerina sp.; Great_Belt; Group; Guembelina globulosa; Lagena semilineata; Lagena sp.; Lagena sulcata laevicostata; MULT; Multiple investigations; Nonionella cf. grateloupi; Nonionella sp.; Protelphidium cf. anglicum; Reophax dentaliniformis regularis; Reophax subfusiformis; Sediment type; Spiroplectammina biformis; Western Baltic Sea
    Type: Dataset
    Format: text/tab-separated-values, 196 data points
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  • 29
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    PANGAEA
    Publication Date: 2023-07-10
    Keywords: 55-430; 55-430A; Abundance; Asteromphalus robustus; Coscinodiscus marginatus; Counting, diatoms; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Diatom preservation; Diatoms; Diatom zone; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Epoch; Event label; Glomar Challenger; Leg55; North Pacific/SEDIMENT POND; Pseudoeunotia doliolus; Sample code/label; Thalassionema nitzschioides; Thalassiosira eccentrica; Thalassiosira oestrupii; Thalassiosira tabularis; Thalassiothrix longissima
    Type: Dataset
    Format: text/tab-separated-values, 96 data points
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  • 30
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    PANGAEA
    Publication Date: 2023-07-10
    Keywords: 55-432; Abundance; Actinocyclus curvatulus; Actinoptychus undulatus; Coscinodiscus marginatus; Coscinodiscus nodulifer; Coscinodiscus radiatus; Coscinodiscus stellaris; Coscinodiscus tabularis; Counting, diatoms; Cyclotella striata; Deep Sea Drilling Project; Denticula seminae; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Diatom preservation; Diatoms; Diatom zone; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Epoch; Glomar Challenger; Hemidiscus cuneiformis; Leg55; Nitzschia kolaczeckii; Nitzschia marina; Nitzschia sicula; North Pacific/TERRACE; Pseudoeunotia doliolus; Rhizosolenia barboi; Rhizosolenia hebetata forma hiemalis; Roperia tesselata; Sample code/label; Thalassionema nitzschioides; Thalassiosira eccentrica; Thalassiosira eccentrica var. fasiculatus; Thalassiosira lineata; Thalassiosira oestrupii; Thalassiosira pacifica; Thalassiothrix longissima
    Type: Dataset
    Format: text/tab-separated-values, 132 data points
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  • 31
    Publication Date: 2023-07-07
    Keywords: Apatite; Archive of Ocean Data; ARCOD; Black ore; Chrome-spinellid; Clinopyroxene; Corundum; Counting, Stereo Microscope; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DM1397-1; DM1397-2; DM1397-4; DM1398-2; DM1398-3b; DM1399-2; DM1401; DM1402-1; DM1403; DM1405; DM1412-1; DM1412-2; DM1416; DM1424; DM1428; DM1429; DM1430; DM1431; DM1437; DM17; Dmitry Mendeleev; Elevation of event; Epidote; Event label; Garnet; GC; Grab; GRAB; Gravity corer; Hornblende; Latitude of event; Longitude of event; Nonidentified, altered, heavy; Olivine; Orthopyroxene; Oxides/hydroxides; Philippine Sea; Pyrite, FeS2; Sphene; Tremolite/Actinolite; Zircon
    Type: Dataset
    Format: text/tab-separated-values, 342 data points
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  • 32
    Publication Date: 2023-07-07
    Keywords: 58-445; Augite; Calcite; Chert; Clinopyroxene; Comment; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Foraminifera; Fragments; Glomar Challenger; Leg58; Limestone; Minerals; North Pacific/BASIN; Olivine; Plagioclase; Rock fragments; Sample code/label; Smectite; Volcanic glass; X-ray diffraction (XRD)
    Type: Dataset
    Format: text/tab-separated-values, 411 data points
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  • 33
    Publication Date: 2023-07-07
    Keywords: 58-443; 58-445; 58-446A; Clinopyroxene; Comment; Comment 2 (continued); Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glasses; Glomar Challenger; Ilmenite; Latitude of event; Leg58; Longitude of event; North Pacific/BASIN; North Pacific/Philippine Sea/BASIN; Olivine; Plagioclase; Rock type; Sample code/label; Texture; Titanomagnetite
    Type: Dataset
    Format: text/tab-separated-values, 114 data points
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  • 34
    Publication Date: 2023-07-07
    Keywords: 55-433C; Alteration; Clinopyroxene; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elements; Glomar Challenger; Leg55; Magnesium number; North Pacific/SEAMOUNT; Olivine; Plagioclase; Sample code/label; Texture; Unit; Water in rock
    Type: Dataset
    Format: text/tab-separated-values, 250 data points
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  • 35
    Publication Date: 2023-07-07
    Keywords: 54-421; 54-422; 54-424; 54-424B; 54-425; 54-427; 54-428; 54-428A; 54-429A; Alteration; Clinopyroxene; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg54; Longitude of event; Mesostasis; North Pacific/CONT RISE; North Pacific/MOUND; North Pacific/RIDGE; North Pacific/SEDIMENT POND; North Pacific/TROUGH; Olivine; Opaque minerals; Phyllosilicate; Piece; Plagioclase; Sample code/label; see reference(s); Vesicle; Volcanic glass
    Type: Dataset
    Format: text/tab-separated-values, 196 data points
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  • 36
    Publication Date: 2023-07-07
    Keywords: 57-439; Biogenic particles; Biotite; Carbonates; Clinopyroxene; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Epidote; Feldspar; Garnet; Glauconite; Glomar Challenger; Heavy minerals; Hornblende; Leg57; Lithic grains; Minerals; North Pacific/TRENCH; Opaque minerals; Orthopyroxene; Quartz; Sample code/label; Sand; Silt; Size fraction 〈 0.002 mm, clay; Smear slide analysis; Volcanic glass; Zircon
    Type: Dataset
    Format: text/tab-separated-values, 880 data points
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  • 37
    Publication Date: 2023-07-07
    Keywords: 55-430A; 55-432A; 55-433A; 55-433B; 55-433C; Alteration; Clinopyroxene; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg55; Longitude of event; Magnesium number; Mass spectrometry; North Pacific/SEAMOUNT; North Pacific/SEDIMENT POND; North Pacific/TERRACE; Olivine; Plagioclase; Rock type; Sample code/label; Texture; Unit
    Type: Dataset
    Format: text/tab-separated-values, 359 data points
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  • 38
    Publication Date: 2023-07-11
    Keywords: 56-436; Aluminium oxide; Calcium oxide; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Iron oxide, Fe2O3; Iron oxide, FeO; Leg56; Loss on ignition; Magnesium oxide; Manganese oxide; North Pacific/RIDGE; Potassium oxide; Sample code/label; Silicon dioxide; Size fraction; Sodium oxide; Titanium dioxide; Total; Wet chemistry
    Type: Dataset
    Format: text/tab-separated-values, 84 data points
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  • 39
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    PANGAEA
    In:  Supplement to: Soldatov, A V; Murdmaa, Ivar O (1970): The mineral composition of the deposits in the Romanche gap. Oceanology, 10, 375-381
    Publication Date: 2023-07-11
    Description: A study was made of mineral composition of sand- and silt-sized fractions of recent clastic (riftogenic) sediments and solidified deposits collected from the bottom of the Romanche Trench during the first voyage of R/V Akademik Kurchatov. Similarity between mineral compositions of sediments and bedrocks (ultrabasites, gabbroids, diabases) was established. This similarity is a basis for considering the mineral complex of the deposits that have been derived from the bedrocks of the trench slopes, and have formed due to their submarine denudation accompanied by tectonic crushing. The same mineral composition was found in pieces of older consolidated deposits; this suggests that conditions of sedimentation similar to those at recent times have existed for a long time in the Romanche Trench.
    Keywords: AK1-08; AK1-10GC; AK1-5GR; AK1-7DRG; AK1-7GC; Akademik Kurchatov; AKU1; Anthophyllite; Apatite; Archive of Ocean Data; ARCOD; Augite-diopside; Black ore; Carbonate, authigenic; Carbonate, biogenic; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Dredge; DRG; Elevation of event; Enstatite-bronzite; Epidote-zoisite; Event label; Feldspar; Fish teeh and bones; Garnet; GC; Grab; GRAB; Gravity corer; Heavy minerals; Heavy minerals, sum; Hornblende; Hornblende, basaltic; Hypersthene; Latitude of event; Leucoxene; Light minerals; Light minerals, sum; Longitude of event; Mica; Nonidentified, altered, heavy; Nonidentified, altered, light; Olivine; Opal, biogenic silica; Quartz; Red ore; Romanche Trench; Serpentine-chlorite; Size fraction; Spinel; Tremolite/Actinolite; Volcanic glass, heavy; Volcanic glass, light; Zircon
    Type: Dataset
    Format: text/tab-separated-values, 440 data points
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  • 40
    Publication Date: 2023-07-11
    Keywords: Atlantische Kuppenfahrten 1967/4-7; BC; BCR; Box corer; Box corer (Reineck); Bryozoa; Cape Blanc/Meteor Bank/Portugal; Coral; Counting; Crinoidea; Decapoda; DEPTH, sediment/rock; Dredge; DRG; Echinoidea; Elevation of event; Event label; Foraminifera, benthic recent; Foraminifera, benthic reworked; Foraminifera, planktic; Foraminifera, planktic recent; Foraminifera, planktic reworked; Fragments; Gastropoda; Gastropoda, planktic; Gastropoda, planktic recent; Gastropoda, planktic reworked; Grab; GRAB; Grains, relict; Indeterminata; Latitude of event; Longitude of event; M19; M19_211; M19_215-2; M19_217-2; M9; M9_101; M9_101b; M9_110; M9_117; M9_118; M9_119; M9_121; M9_122; M9_123; M9_124; M9_125; M9_127; M9_128; M9_129; M9_130; M9_131; M9_132; M9_133; Median, grain size; Meteor (1964); Mode, grain size; North Atlantic; Ophiuroidea; Ostracoda; Pelecypods; Quartz; Rossbreiten-Expedition 1970; Serpulidae; Size fraction; Size fraction 〈 0.063 mm, mud, silt+clay; Size fraction 〉 2 mm, gravel; Size fraction 2.000-0.630 mm, coarse sand; South Atlantic Ocean; Sponge spiculae; van Veen Grab; VGRAB; Volcanic glass
    Type: Dataset
    Format: text/tab-separated-values, 625 data points
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  • 41
    Publication Date: 2023-07-11
    Keywords: Atlantis_II_1969; Atlantis II (1963); Calcite/Dolomite ratio; Calculated; Carbonates; Coruh; Feldspar; Plagioclase/Kalifeldspar ratio; Quartz; Quartz/Feldspar ratio; SESAME; Size fraction; Southern European Seas: Assessing and Modelling Ecosystem Changes; Water sample; WS
    Type: Dataset
    Format: text/tab-separated-values, 49 data points
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  • 42
    Publication Date: 2023-07-11
    Keywords: 804; Calcite/Dolomite ratio; Calculated; Carbonates; Feldspar; Global River Discharge; Inozu; Kizilirmak, Turkey, Asia; Plagioclase/Kalifeldspar ratio; Quartz; Quartz/Feldspar ratio; RGS; River gauging station; SESAME; Size fraction; Southern European Seas: Assessing and Modelling Ecosystem Changes
    Type: Dataset
    Format: text/tab-separated-values, 63 data points
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  • 43
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    PANGAEA
    In:  Supplement to: Lonsdale, Peter; Burns, Virginia Mee; Fisk, Mary B (1980): Nodules of Hydrothermal Birnessite in the Caldera of a Young Seamount on JSTOR. The Journal of Geology, 88(5), 611-618, http://www.jstor.org/stable/30066087
    Publication Date: 2023-08-28
    Description: Manganese nodules made of radiating rods of well crystallized birnessite were sampled at 8 degree 481.2'N, 103 degree 53.8W, 1875 m below sea level by a dredge that also collected hyaloclastite and basaltic talus. The nodule field is on the floor of a caldera within a young tholeiitic seamount and was discovered and photographed during a deep-two survey. It is interpreted as a brecciated hydrothermal deposit, crystallized from an amorphous manganese oxide precipitate that formed when seawater-based hydrothermal fluids mixed with oxidized seawater. The nodules and surrounding igneous rocks have subsequently been encrusted with hydrogenous ferromanganese oxides.
    Keywords: DEEPSONDE; DPSN02-D3; DPSN02-D4; DPSN02-D5; Dredge; DRG; East Pacific Ocean; Indomed_leg_1; INMD-1D; Melville; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; SIQR-4D; SIQUEIROS; Thomas Washington
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 44
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    PANGAEA
    In:  Supplement to: Humphris, Susan E; Thompson, Robert N; Marriner, Giselle F (1980): The mineralogy and geochemistry of basalt weathering, holes 417A and 418A. In: Donnelly, T.; Francheteau, J.; Bryan, W.; Robinson, P.; Flower, M.; Salisbury, M.; et al., Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, LI, LII, LIII, 1201-1217, https://doi.org/10.2973/dsdp.proc.515253.147.1980
    Publication Date: 2023-08-28
    Description: The successful drilling on Legs 51, 52, and 53 created a rare opportunity to investigate the long-term effects of seawater-rock interactions on the mineralogy and chemistry of basalts erupted on the sea floor. The purpose of this paper is to describe the weathering of the basalts in terms of the changes in their mineralogy and chemistry, and to compare the weathering observed in Hole 418A with that in the upper parts of Hole 417A.
    Keywords: 51-417A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg51; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/CONT RISE
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 45
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    PANGAEA
    In:  Supplement to: Hekinian, Roger; Rosendahl, Bruce R; Natland, James H (1980): Ocean Crust Geothermal Processes: A Perspective from the Vantage of Leg 54 Drilling. In: Rosendahl, B.R.; Hekinian, R.; et al., Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, VIV, 267-294, https://doi.org/10.2973/dsdp.proc.54.115.1980
    Publication Date: 2023-08-28
    Description: Two distinct sedimentary facies produced by sea-floor hydrothermal activity were cored during Deep Sea Drilling Project Leg 54. The first is equivalent to the typical basal iron- and manganese-rich, clayey mud recovered at many DSDP sites. It was sampled as a dispersed component throughout the cores taken in small sediment ponds in several sites within 120 km of the East Pacific Rise at 9°N. We infer that this component was originally deposited as iron hydroxides dispersed from high-temperature vents over the axial magma chamber of the East Pacific Rise. In the sediments, the iron hydroxides have reacted diagenetically with siliceous microfossil tests and detrital clays to form K- and Fe-rich clays with variable SiO2/Fe2O3 and Fe2O3/Al2O3, ratios.
    Keywords: 54-419; 54-420; 54-421; 54-424; 54-424A; 54-424B; 54-424C; 54-425; 54-427; 54-428; 54-428A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg54; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/CONT RISE; North Pacific/MOUND; North Pacific/RIDGE; North Pacific/SEDIMENT POND; North Pacific/TROUGH
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 46
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    PANGAEA
    In:  Supplement to: MNHN (1980): ANTIPROD II Cruise - MD21, R/V Marion Dufresne, Core list. Muséum National d'Histoire Naturelle, Paris, unpublished, https://geocores.mnhn.fr/index.php?catid=7&blogid=1
    Publication Date: 2023-08-28
    Description: The cores and dredges described at this site were taken on the ANTIPROD II cruise from 21 February to 9 April 1980 by the Muséum National d'Histoire Naturelle from the R/V Marion Dufresne. A total of 10 cores were recovered and are available at MNHN for sampling and study.
    Keywords: ANTIPROD2; Comment; Date/Time of event; Deposit type; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Description; Device type; Elevation of event; Event label; Indian Ocean; Latitude of event; Longitude of event; Marion Dufresne (1972); MD 21-11-GS; MD 21-19-GS; MD-GS800306; MD-GS800309; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; PC; Piston corer; Position; Quantity of deposit; Sample ID; Sediment type; Size
    Type: Dataset
    Format: text/tab-separated-values, 121 data points
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  • 47
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    PANGAEA
    In:  Supplement to: Harriss, Robert C; Troup, Arthur G (1970): Chemistry and origin of freshwater ferromanganese concretions. Limnology and Oceanography, 15(5), 702-712, https://doi.org/10.4319/lo.1970.15.5.0702
    Publication Date: 2023-08-28
    Description: Ferromanganese concretions from Grand Lake and Ship Harbour Lake in Nova Scotia and Mosque Lake in Ontario are most common in water 0.5 to 2 m deep. X-ray diffraction studies show the ferromanganese portions of the concretions to he amorphous. Petrographic and electron probe studies of the ferromanganese material reveal chemical banding of iron and manganese. Bulk chemical analyses indicate that the Fe:Mn ratios of concretions from different sites within a single lake are similar, whereas concretions from different lakes have characteristic Fe:Mn ratios. Trace element concs are different in different lakes and are generally several orders of magnitude less than those of oceanic nodules.
    Keywords: Canada; DEPTH, sediment/rock; Description; Dredge; DRG; Event label; Grab; GRAB; Grand_Lake-H; Identification; Lake_Charlotte-S; Lake_Mosque-H; Mercury; Mercury vapor detector; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Nova Scotia, Canada; Ontario, Canada
    Type: Dataset
    Format: text/tab-separated-values, 34 data points
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  • 48
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    In:  Supplement to: Edgington, David N; Callender, Edward (1970): Minor element geochemistry of Lake Michigan ferromanganese nodules. Earth and Planetary Science Letters, 8(2), 97-100, https://doi.org/10.1016/0012-821X(70)90157-3
    Publication Date: 2023-08-28
    Description: Samples of ferromanganese nodules from several localities in Lake Michigan have been analyzed for their minor element content utilizing neutron activation techniques. The thorium and uranium levels in Lake Michigan nodules exhibit marked dissimilarities with marine nodules. The radium content of these freshwater nodules is substantially higher than the reported marine values. The concentrations of barium in the Lake Michigan nodules appear to be abnormally high. Although barium could be present as minute segregations of the mineral barite, patterns obtained using the electron microprobe suggest it is evently dispersed throughout the nodules. The average arsenic content of these freshwater nodules is at least twice as great as that reported for highly oxidized marine sediments. If all this arsenic is dissolved and released into Green Bay as a result of changing environmental conditions (eutrophication), the concentration in the water of Green Bay would be several times the maximum permissible level for drinking water.
    Keywords: Antimony; Arsenic; Atomic absorption spectrometry (AAS); Barium; Bromine; Cadmium; Cerium; Cobalt; Comment; Copper; Dredge; DRG; EDGI1970_11; EDGI1970_2; EDGI1970_35; EDGI1970_37; EDGI1970_43; EDGI1970_6; Europium; Event label; Gallium; Green Bay - Lake Michigan; Iron; Lake Michigan; Lanthanum; Manganese; Maximum; Neutron activation analysis; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Radium; ROSS1969_25; Samarium; Sample ID; Scandium; Soluble residue; Strontium; Thorium; Uranium; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 241 data points
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  • 49
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    In:  Supplement to: Hoffert, Michel (1980): Les "argiles rouges des grands fonds" dans le Pacifique centre-est: authigenèse, transport, diagenèse (PhD Dissertation). Université Louis Pasteur, Strasbourg, France, 231 pp
    Publication Date: 2023-08-28
    Description: The text studies the deep-sea red clays in the East-Central Pacific ocean (Tahiti-Touamotou Archipelago), their authigenic formation, transport and diagenetic character in particular through their composition in REE.
    Keywords: Aluminium; Boron; Calcium; Chromium; Cobalt; Date/Time of event; Deposit type; DEPTH, sediment/rock; Elevation of event; Gallium; Iron; Latitude of event; Lead; Le Noroit; Longitude of event; Magnesium; Manganese; Molybdenum; NIXO; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; PC; Piston corer; Potassium; Quantum emission spectrography; Sample ID; Scandium; Sediment type; Shape; Silicon; Sodium; Strontium; Titanium; TKS16; TRANSPAC; TRSPC1-KS16; Vanadium; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 23 data points
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  • 50
    Publication Date: 2023-08-28
    Description: The Atlantic Advisory Panel proposed that Site 8 should be drilled on the rise between the Hatteras and Sohm Abyssal Plains (lat 35° 2l'N., long 67° 3l'W.) This location was considered to offer the best opportunity for realizing two primary objectives. The first of these objectives was to sample and date the oldest available rock in a region adjacent to the North American continent and as far as possible from the Mid-Atlantic Ridge. The second objective relates to the potential paleobiological and paleoecological information that could be derived from the sedimentary column in this general area.
    Keywords: 2-8; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg2; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/CONT RISE; Position; Quantity of deposit; Sample code/label; Sample ID; Sediment type; Substrate type
    Type: Dataset
    Format: text/tab-separated-values, 17 data points
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  • 51
    Publication Date: 2023-08-28
    Description: Site 12 of this report formerly was designated 14 by the Atlantic Advisory Panel. It was drilled in the Cape Verde Basin (latitude 19° 42'N, longitude 26° 01'W), which is underlain by 2000 to 2100 feet (0.9 to 1.1 seconds reflection time) of sediment. The bottom topography of the basin is fairly smooth but not to the degree of an abyssal plain. Site 12 was selected to provide material for paleontological investigations.
    Keywords: 2-12C; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Glomar Challenger; Latitude of event; Leg2; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/BASIN; Position; Quantity of deposit; Sample code/label; Sample ID; Sediment type
    Type: Dataset
    Format: text/tab-separated-values, 53 data points
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  • 52
    Publication Date: 2023-08-28
    Description: The preliminary planning and approach to site 13 were taken from the JOIDES Atlantic Advisory Panel Report and from a previous detailed survey of the site by R/V Vema of the Lamont Geological Observatory. Several CSP profiles crossing the selected site in various directions show an uplifted portion of the sea floor roughly circular in shape of about 10 kilometers in diameter. In contrast to the smooth bottom of the surrounding abyssal plain, the topography of the small rise selected for the site has a small-scale roughness of amplitude of 40 to 80 meters. The work reported here is a biostratigraphic summary of available samples. Only the most important and biostratigraphically significant components of the faunas have been noted. No attempt has been made to give an exhaustive faunal analysis of the samples seen.
    Keywords: 3-13; 3-15; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg3; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/CONT RISE; Position; Quantity of deposit; Sample code/label; Sample ID; Sediment type; South Atlantic/HILL
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
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  • 53
    Publication Date: 2023-08-28
    Description: The Atlantic Advisory Panel proposed that Site 9 should be drilled on the northeastern flank of the Bermuda Rise (lat. 32° 37' N., long. 59° 10' W.), which is about 100 miles west of the Sohm Abyssal Plain. The bottom of this region consists of low linear ridges that are roughly parallel and oriented in a northwest-southeasterly direction. Scattered seamounts, some of which have peaks 2000 fathoms (3660 meters) below sea level, arise from the otherwise featureless sea floor between the ridges. The primary purpose in drilling Site 9 was to examine a sedimentary column where seismic reflectors were largely absent and to determine the age of sediments overlying acoustical basement in the examination of sea floor spreading.
    Keywords: 2-9A; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Glomar Challenger; Latitude of event; Leg2; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/CONT RISE; Position; Quantity of deposit; Sample code/label; Sample ID; Sediment type; Size
    Type: Dataset
    Format: text/tab-separated-values, 9 data points
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  • 54
    Publication Date: 2023-08-28
    Description: Prior to arrival on this site, the only survey data available was from the Vema-20 crossing of the area. The recommended site location was over a relatively smooth valley in the bottom topography at about 4750 meters (15,580 feet) depth (uncorrected), about 10 kilometers wide E-W between peaks (or ridges) on either side. Sediment thickness was unknown. The center of the valley is near the peak of a wide (40 to 50 kilometers) positive magnetic anomaly, identified as Magnetic Anomaly 30 in the hypothesized geomagnetic time scale with an age of 72 million years.
    Keywords: 3-20; 3-20A; 3-20C; Comment; Date/Time of event; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg3; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample code/label; Sample ID; Sediment type; South Atlantic/VALLEY; Substrate type
    Type: Dataset
    Format: text/tab-separated-values, 25 data points
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  • 55
    Publication Date: 2023-08-28
    Description: The drilling objectives at this site were to complete the cored section begun at Site 23 in accordance with the recommendations of the JOIDES Atlantic Advisory Panel, presented in the Site 23 report. The location coincides with a position on the southeastern side of the elevated portion of basement in this area.
    Keywords: 4-24; Comment; Date/Time of event; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Glomar Challenger; Latitude of event; Leg4; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample code/label; Sample ID; Sediment type; South Atlantic/CONT RISE
    Type: Dataset
    Format: text/tab-separated-values, 8 data points
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  • 56
    Publication Date: 2023-08-28
    Description: At the Leg 4 pre-cruise meeting in Miami, Florida, in January 1969, the Ridge site was proposed as an additional site to be investigated, if possible. Since the water depth and sediment thickness at this site were both minimal (2000 meters and less than 100 meters, respectively) and the location was not far from the track between initially planned sites, the shipboard party decided, upon completion of work at Site 24, to make a 24-hour drilling effort on the North Brazilian Ridge. The drilling objectives at this location were to sample and date the sediments atop the Ridge crest and to determine the nature, age and origin of the consolidated material beneath the thin mantle of sediment.
    Keywords: 4-25A; Comment; Date/Time of event; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Elevation of event; Glomar Challenger; Latitude of event; Leg4; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample code/label; Sample ID; Sediment type; Size; South Atlantic/RIDGE; Substrate type
    Type: Dataset
    Format: text/tab-separated-values, 19 data points
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  • 57
    Publication Date: 2023-08-28
    Description: The northern margin of the Demerara Abyssal Plain is bordered by a low ESE-WNW trending rise known as the Barracuda Ridge. North of South America, the eastern margin of the Demerara Abyssal Plain is formed by the Barbados Ridge. An extensive sedimentary section of the Barbados Ridge is exposed on the island of Barbados and consists of a series of radiolarian to planktonic foraminiferal and calcareous nannofossil biogenic sediments interlayered with ash beds. To determine the nature of the sediments and "basement," Site 27 was selected on the northern margin of the Demerara Abyssal Plain, south of the Barracuda Ridge.
    Keywords: 4-27; 4-27A; Comment; Date/Time of event; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg4; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/RIDGE; Position; Quantity of deposit; Sample code/label; Sample ID; Sediment type
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
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  • 58
    Publication Date: 2023-08-28
    Description: The southern Caribbean basins are thought to be part of a relatively old and geologically stable crustal plate. Although surrounded by belts of high earthquake activity, the central Caribbean is seismically quiet. The region also constitutes a quiet magnetic zone and appears to have resisted all of the surrounding forces related to ocean floor spreading. In addition to providing considerable information on the general geologic history of the Caribbean region, paleontologic studies on cores at Site 29 were expected to provide valuable data on phylogenetic trends within the planktonic foraminifera and calcareous nannoplankton, furnishing more accurate criteria for intercontinental stratigraphic correlation. The work reported here is a biostratigraphic summary of available samples. only the most important and biostratigraphically significant components of the faunas have been noted. No attempt has been made to give an exhaustive faunal analysis of the samples seen.
    Keywords: 4-29B; Caribbean Sea/BASIN; Comment; Date/Time of event; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Glomar Challenger; Latitude of event; Leg4; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample code/label; Sample ID; Sediment type
    Type: Dataset
    Format: text/tab-separated-values, 8 data points
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  • 59
    Publication Date: 2023-08-28
    Description: Site 26 was selected on the crest of the Mid-Atlantic Ridge between 15°N and 5°S is offset to the east nearly 4000 kilometers through a series of fracture zones. One of the most prominent of these is the Vema Fracture Zone, a narrow east-west trending trough which cuts through the Mid-Atlantic Ridge at latitude 11°N.
    Keywords: 4-26; Comment; Date/Time of event; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Elevation of event; Glomar Challenger; Latitude of event; Leg4; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/TROUGH; Position; Quantity of deposit; Sample code/label; Sample ID; Sediment type; Size
    Type: Dataset
    Format: text/tab-separated-values, 18 data points
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  • 60
    Publication Date: 2023-08-28
    Description: The BLM-OCS (Bureau of Land Management-Outer Continental Shelf) program was designed to establish chemical, biological, and geological baseline on the South Texas Continental Shelf. The focus for the geological program was to establish the nature and amount of the suspended sediment in the water column, of the Holocene sediments on the shelf, and to identify and locate regions of geology conditions which may be hazardous to OCS operations. To accomplish these goals three cruises were planned. The report constitutes results of the first cruise. The results of these cruises associated with the subsequent laboratory analysis, enabled to establish a detailed baseline in order to provide significant geologic and biologic data for environmental assessment. Dredges recovered are available at University of Texas (see: BLM/OCS South Texas Outer Continental Shelf (STOCS) Project Sediment Data http://www.ngdc.noaa.gov/docucomp/page?xml=NOAA/NESDIS/NGDC/MGG/Geology/iso/xml/G02888.xml&view=getDataView&header=none).
    Keywords: 1974-012-FA; BLMSTG-55G; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Gulf of Mexico; Kana Keoki; KNKE BLM-Leg Alpha; CORPUS 22/28; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample ID; Size; Substrate type
    Type: Dataset
    Format: text/tab-separated-values, 7 data points
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  • 61
    Publication Date: 2023-08-28
    Description: The BLM-OCS (Bureau of Land Management-Outer Continental Shelf) program was designed to establish chemical, biological, and geological baseline on the South Texas Continental Shelf. The focus for the geological program was to establish the nature and amount of the suspended sediment in the water column, of the Holocene sediments on the shelf, and to identify and locate regions of geology conditions which may be hazardous to OCS operations. To accomplish these goals three cruises were planned. The report constitutes results of the second cruise. The results of these cruises associated with the subsequent laboratory analysis, enabled to establish a detailed baseline in order to provide significant geologic and biologic data for environmental assessment. Dredges recovered are available at University of Texas (see: BLM/OCS South Texas Outer Continental Shelf (STOCS) Project Sediment Data http://www.ngdc.noaa.gov/docucomp/page?xml=NOAA/NESDIS/NGDC/MGG/Geology/iso/xml/G02888.xml&view=getDataView&header=none).
    Keywords: 1974-014-FA; BLMSTG-191G; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Elevation of event; Gulf of Mexico; Kana Keoki; KNKE BLM-Leg Bravo; CORPUS 23/29; Latitude of event; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample ID; Substrate type
    Type: Dataset
    Format: text/tab-separated-values, 6 data points
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  • 62
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    In:  Supplement to: Piepgras, Donald J; Wasserburg, Gerald J (1980): Neodymium isotopic variations in seawater. Earth and Planetary Science Letters, 50(1), 128-138, https://doi.org/10.1016/0012-821X(80)90124-7
    Publication Date: 2023-08-28
    Description: New data for the direct measurement of the isotopic composition of neodymium in Atlantic Ocean seawater are compared with previous measurements of Pacific Ocean seawater and ferromanganese sediments from major ocean basins. Data for Atlantic seawater are in excellent agreement with Nd isotopic measurements made on Atlantic ferromanganese sediments and are distinctly different from the observed compositions of Pacific samples. These results clearly demonstrate the existence of distinctive differences in the isotopic composition of Nd in the waters of the major ocean basins and are characteristic of the ocean basin sampled. The average eNd(0) values for the major oceans as determined by data from seawater and ferromanganese sediments are as follows: Atlantic Ocean, eNd(0) = -12 ± 2; Indian Ocean, eNd(0) = -8 ± 2; Pacific Ocean, eNd(0) = -3 ± 2. These values are considerably less than eNd(0) value sources with oceanic mantle affinities indicating that the REE in the oceans are dominated by continental sources. The difference in the absolute abundance of 143Nd between the Pacific and Atlantic Oceans corresponds to ab. 10**6 atoms 143Nd per gram of seawater. The correspondence between the 143Nd/144Nd in seawater and in the associated sediments suggests the possible application of this approach to paleo-oceanography. Distinctive differences in eNd(0) values are observed in the Atlantic Ocean between deep-ocean water associated with North Atlantic Deep Water and near-surface water. This suggests that North Atlantic Deep Water may be relatively well mixed with respect to Nd isotopic composition whereas near-surface water may be quite heterogeneous, reflecting different sources for surface waters relative to deep water. This suggests that it may be possible to distinguish the sources of water masses within an ocean basin on the basis of Nd isotopic composition. The Nd isotopic variations in seawater are used to relate the residence time of Nd and mixing rates between the oceans.
    Keywords: Calculated; Deposit type; DEPTH, sediment/rock; Description; DISTANCE; Distance, maximum; Distance, minimum; Dredge; DRG; Identification; L-10-76-HW; L1076HW-9A; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, standard deviation; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Sample code/label; Samuel P. Lee; ε-Neodymium; ε-Neodymium, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 20 data points
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  • 63
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    PANGAEA
    In:  Supplement to: Pimm, Anthony C (1974): Sedimentology and History of the Northeastern Indian Ocean from Late Cretaceous to Recent. In: von der Borch, C.C.; Sclater, J.G.; et al., Initial Reports of the Deep Sea Drilling Project, Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, XXII, 717-803, https://doi.org/10.2973/dsdp.proc.22.139.1974
    Publication Date: 2023-08-28
    Description: Eight sites were drilled on Leg 22 in the northeastern Indian Ocean. Three sites (214, 216, 217) on Ninetyeast Ridge penetrated a thick sequence of mostly Tertiary calcareous oozes passing down into shallow-water sediments with volcanogenic material in Sites 214 and 216. The age of the basal sequence increases northwards from Paleocene (214) through Maastrichtian (216) to Campanian (217). A nonmarine sequence of volcanoclastics and lignite overlies basalt at 214. Drilling terminated in a dolomite chert sequence at 217 before bsalt was encountered. Two sites (213, 215), in deep water on either side of Ninetyeast Ridge, showed calcareous ooze of Paleocene to early Eocene age overlying basalt passing up into brown clay and finally siliceous ooze of late Miocene and younger age. A major hiatus centered in the Oligocene occurs at both these sites. One site (212), drilled in the deepest part of the Wharton Basin, penetrated a brown clay sequence interbedded with several thick calcareous units, each of a very short time duration. Evidence from sedimentary structures and calcareous microfossils.
    Keywords: 22-212; 22-213; 22-215; 22-216; 22-217; 22-217A; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Indian Ocean//BASIN; Indian Ocean//RIDGE; Leg22; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample code/label; Sediment type; Size; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 122 data points
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  • 64
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    PANGAEA
    In:  Supplement to: Cronan, David S; Damiani, Theresa; Kinsman, D J J; Thiede, Jörn (1974): Sediments from the Gulf of Aden and Western Indian Ocean. In: Fisher, R.L.; Bunce, E.T.; et al., Initial Reports of the Deep Sea Drilling Project, Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, XXIV, 1047-1110, https://doi.org/10.2973/dsdp.proc.24.127.1974
    Publication Date: 2023-08-28
    Description: During Leg 24 three drilling sites were occupied in the Gulf of Aden (231, 232, 233), two in the Somali Basin (234, 235), and three in the western Indian Ocean (236, 237, 238). The location of these sites is shown in Figure 1; latitude, water depth, and penetration depth are indicated in Table 1. Figure 2 summarizes the lithologies and stratigraphy of all eight sites cored. In this chapter are included lithologic summaries for each of the sites. The sediments are then discussed in terms of their individual biogenic, terrigenous, volcanogenic, or authigenic components and their sedimentary structures. In a series of synthesis sections the hemipelagic, pelagic, and basal metaliferous sedimentary facies are discussed.
    Keywords: 24-234; 24-238; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Indian Ocean//FRACTURE ZONE; Indian Ocean//RIDGE; Leg24; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample code/label; Sediment type; Size; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 57 data points
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  • 65
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    PANGAEA
    In:  Supplement to: Leclaire, Lucien (1974): Late Cretaceous and Cenozoic Pelagic DepositsPaleoenvironment and Paleooceanography of the Central Western Indian Ocean. In: Simpson, E.S.W.; Schlich, R.; et al., Initial Reports of the Deep Sea Drilling Project, Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, XXV, 481-513, https://doi.org/10.2973/dsdp.proc.25.120.1974
    Publication Date: 2023-08-28
    Description: Pelagic deposits are the dominant contributors to the sediment layers that blanket ridges and basaltic sea floor in deep basins. Among pelagic constituents, nannofossils undoubtedly are the predominant contributor, especially to Cenozoic chalk and ooze. Among Leg 25 sites, the most typical pelagic deposits are found in the Madagascar Basin (Site 245) including a clayey nanno chalk, bearing Fe-Mn oxides, resting directly on the basalt and overlain successively by a nanno chalk which is interlayered with chert and devitrified volcanic ash and a nearly pure nanno ooze. The lithologic sequence is capped by brown clay. Upper Cenozoic foram sand and foram nanno ooze were found on the Mozambique Ridge (Site 249) and particularly on the Madagascar Ridge (Site 246). Biogenic silica-rich facies are rare and mainly located near the top of the lowest latitude sites.
    Keywords: 25-239; 25-242; 25-245; 25-245A; 25-248; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Indian Ocean//BASIN; Indian Ocean//CHANNEL; Leg25; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample code/label; Sediment type; Size; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 77 data points
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  • 66
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    In:  Supplement to: Doyle, Patricia S; Boltovskoy, Esteban; Herb, Rene C; Thierstein, Hans R; Hyndman, Roy D; Horvath, George J; Leidy, Rosanne D; McKelvey, Barrie C; Kempe, D R C; Rodolfo, Kelvin S; Davies, Thomas A; Luyendyk, Bruce P (1974): Initial Reports of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, XXVI, 1129 pp, https://doi.org/10.2973/dsdp.proc.26.1974
    Publication Date: 2023-08-28
    Description: DSDP Leg 26, is the fifth cruise of D/V Glomar Challenger in the Indian Ocean, and the first cruise of Phase III of the Deep Sea Drilling Project. The Indian Ocean is the smallest of the three major ocean basins but appears to be geologically the most complex. The sites drilled on Leg 26 were selected to try to elucidate a number of specific problems of both local and broad regional significance, as well as to add to the general knowledge of the area. In particular: a) To locate the oldest sediment in the Indian Ocean and thus possibly the date of the initial breakup of Gondwanaland (Sites 250, 256, 257); b) To determine the effects of the initiation of the Circumpolar Current on southern Indian Ocean sedimentation (Sites 250, 252, 256, 257, 258); c) To determine the history of spreading of the Southwest Branch of the Indian Ocean Ridge and the history of the crust and oceanic sedimentation in that general region (Sites 250, 251, 252).
    Keywords: 26-250A; 26-252; 26-256; 26-257; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Indian Ocean//BASIN; Leg26; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample code/label; Sediment type; Size; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 42 data points
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  • 67
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    In:  Supplement to: Robinson, Paul T; Thayer, Julie A; Cook, Peter J; McKnight, Brian K (1974): Lithology of Mesozoic and Cenozoic Sediments of the Eastern Indian Ocean, Leg 27, Deep Sea Drilling Project. In: Veevers, J.J.; Heirtzler, J.R.; et al., Initial Reports of the Deep Sea Drilling Project, Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, XXVII, 1001-1047, https://doi.org/10.2973/dsdp.proc.27.148.1974
    Publication Date: 2023-08-28
    Description: During Leg 27 five sites were drilled in the eastern Indian Ocean, four in abyssal plains near the western margin of Australia and one in the Timor Trough. Abyssal plain sediments are divided into two major units: (1) a lower, acoustically transparent layer of relatively uniform thickness draped over basaltic basement and (2) a horizontally layered sequence of highly variable thickness filling low areas on the surface of the transparent layer. The transparent layer, ranging in age from Upper Jurassic to Upper Cretaceous, consists chiefly of dark gray, siliceous clays and claystones with minor zeolitic clay and nannofossil ooze. Sedimentation rates are between 5 and 30 m/m.y. being highest in the Lower Cretaceous. Upper Cretaceous sediment are sparse or absent. The relatively high sedimentation rates for pelagic clay are probably due to the proximity of the Australian continent. The layered unit consists of calcareous oozes and lesser zeolitic clay and radiolarian ooze, all of Cenozoic age. Many of the oozes contain shallow-water foraminifers and graded sequences suggesting deposition by mass transport.
    Keywords: 27-259; 27-261; 27-263; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Indian Ocean//PLAIN; Leg27; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample code/label; Sediment type; Size; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 66 data points
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  • 68
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    In:  Supplement to: Aumento, Fabrizio (1970): Petrological, geochemical and geophysical studies of rocks dredged from the mid-Atlantic Ridge at 45 °N. AOL Data Series, Bedford Institute of Oceanography, Canada; www.dfo-mpo.gc.ca/Library/58126_v1_pt1.pdf and www.dfo-mpo.gc.ca/Library/58126_v1_pt2.pdf, 5-D (1+2), 598 pp, https://store.pangaea.de/Projects/NOAA-MMS/58126_v1_pt2.pdf
    Publication Date: 2023-08-28
    Description: The data presented in this report is the result of investigations carried out by a number of laboratories on a suite of rocks dredged from the Mid - Atlantic Ridge at 45°N by F. Aura en to and K. S. Manchester during the three Bedford Institute cruises BI 19-66 Hudson, BI 22-68 Hudson, and BI 23-68 Theta.
    Keywords: Atlantic Ocean; BI19-66-Phase2; BI22-68-Phase4; BI23-68-Phase2; BI23-68-Phase3; BI23-68-Phase5; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Event label; File name; HUD66/19-1; HUD66/19-1C; HUD68/22-103; HUD68/22-106; HUD68/22-108; HUD68/22-112; HUD68/22-116; HUD68/22-120; HUD68/22-123; HUD68/22-128; HUD68/22-133; HUD68/22-134; Hudson; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Photo/Video; Position; PV; Quantity of deposit; Size; Substrate type; Theta; THT68/23-5; THT68/23-6; THT68/23-8; Uniform resource locator/link to image; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 186 data points
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  • 69
    Publication Date: 2023-08-28
    Keywords: AL34200; AL34900; AL42100; AL42300; AL42700; AL43100; AL44500; ALV342; ALV-342; ALV349; ALV-349; ALV421; ALV-421; ALV423; ALV-423; ALV427; ALV-427; ALV431; ALV-431; ALV445; ALV-445; Alvin; Comment; Deposit type; DEPTH, sediment/rock; Description; Event label; Grab; GRAB; Gulf of Maine, Atlantic Ocean; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sediment type; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 55 data points
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  • 70
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    In:  Supplement to: Donnelly, Thomas W; Francheteau, Jean; Bryan, Wilfred B; Robinson, Paul T; Flower, Martin F J; Salisbury, Matthew H (1980): Initial Reports of the Deep Sea Drilling Project. Deep Sea Drilling Project, U.S. Government Printing Office, LI, LII, LIII, 1597 pp, https://doi.org/10.2973/dsdp.proc.515253.1980
    Publication Date: 2023-08-28
    Description: The JOIDES Paleoenvironment Panel had noted that the Neogene section had only been spot-cored on previous legs in the Western Atlantic (Legs 1, 2, 4, 11, and 43). The Panel accordingly requested that the complete section be recovered on Legs 51 through 53 in order to examine the transition from siliceous, Pacific-type Eocene sedimentation to non-siliceous sedimentation resulting from the gradual emergence of the Central American isthmus. It was also detremined to examine in detail the thick Cretaceous-Tertiary section overlying the basement.
    Keywords: 51-417A; 51-417D; 52-418A; 53-418B; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Leg51; Leg52; Leg53; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/CONT RISE; Position; Quantity of deposit; Sample code/label; Sediment type; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 208 data points
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  • 71
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    In:  Supplement to: Schrader, Ed L; Furbish, William J; Mattey, David P; May, J A (1980): Geochemistry and Carbonate Petrology of Selected Sediment Samples from Deep Sea Drilling Project Leg 54, Eastern Pacific. In: Rosendahl, B.R.; Hekinian, R.; et al., Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, LIV, 319-328, https://doi.org/10.2973/dsdp.proc.54.110.1980
    Publication Date: 2023-08-28
    Description: Thirty selected samples of pelagic and hydrothermal sediments retrieved on DSDP Leg 54 were chemically analyzed for major and minor oxide concentrations. Additionally, 11 samples of lithified carbonate sediments were petrologically studied. The pelagic sediments, which are described as foraminiferal biomicrite, were found to be generally higher in Fe and Zn, similar in Co content, and lower in Cu content, than the average Pacific pelagic sediments. Mineralogically, these samples are composed principally of calcite with minor amounts of quartz and clays. Hydrothermal sediments from Site 424 are divisible into three classes: (1) silica-rich, iron-poor smectites; (2) silica-poor, iron-rich mixtures of smectites and oxides; and (3) silica-poor, iron-rich materials, comprising mainly amorphous manganese oxides. Thus, two chemically distinct hydrothermal phases are recognizable: Class 1, iron-rich smectites, and Class 3, Mn-rich oxides and oxyhydroxides. Dolomite and pyrite were identified in X-ray diffraction studies of samples from Site 427.
    Keywords: 54-419; 54-420; 54-424; 54-424A; 54-427; Atomic absorption spectrometry (AAS); Cobalt; Copper; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Iron; Leg54; Manganese; Molybdenum; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/MOUND; North Pacific/SEDIMENT POND; North Pacific/TROUGH; Sediment type; X-ray fluorescence (XRF); Zinc
    Type: Dataset
    Format: text/tab-separated-values, 99 data points
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  • 72
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    In:  Supplement to: Lonsdale, Peter; Spiess, Fred N (1980): Deep-Tow Observations at the East Pacific Rise, 8°45'N, and Some Interpretations. In: Rosendahl, B.R.; Hekinian, R.; et al., Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, LIV, 43-62, https://doi.org/10.2973/dsdp.proc.54.104.1980
    Publication Date: 2023-08-28
    Description: A near-bottom survey of a 24-km length of the East Pacific Rise (EPR) crest near the Leg 54 drill sites has established that the axial ridge is a 12- to 15-km-wide lava plateau, bounded by steep 300-meter-high slopes that in places are large outward-facing fault scarps. The plateau is bisected asymmetrically by a 1- to 2-km-wide crestal rift zone, with summit grabens, pillow walls, and axial peaks, which is the locus of dike injection and fissure eruption. About 900 sets of bottom photos of this rift zone and adjacent parts of the plateau show that the upper oceanic crust is composed of several different types of pillow and sheet lava. Sheet lava is more abundant at this rise crest than on slow-spreading ridges or on some other fastspreading rises. Beyond 2 km from the axis, most of the plateau has a patchy veneer of sediment, and its surface is increasingly broken by extensional faults and fissures. At the plateau's margins, secondary volcanism builds subcircular peaks and partly buries the fault scarps formed on the plateau and at its boundaries. Another deep-tow survey of a patch of young abyssal hills 20 to 30 km east of the spreading axis mapped a highly lineated terrain of inactive horsts and grabens. They were created by extension on inward- and outwardfacing normal faults, in a zone 12 to 20 km from the axis. Sediments sampled on the rise crest and flanks are mixtures of calcareous ooze and metalliferous precipitates, and they have been redistributed by southerly currents with average velocities of 9 cm/s.
    Keywords: Deposit type; DEPTH, sediment/rock; Description; East Pacific Ocean; Event label; File name; Identification; Indomed_leg_1; INMD-3-2C; INMD-3-7C; INMD-4-1C; INMD-4-3C; Melville; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Photo/Video; Position; PV; Quantity of deposit; Sediment type; Size; Uniform resource locator/link to image; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 35 data points
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  • 73
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    In:  Supplement to: Lonsdale, Peter; Bischoff, James L; Burns, Virginia Mee; Kastner, Miriam; Sweeney, Colm (1980): A high-temperature hydrothermal deposit on the seabed at a gulf of California spreading center. Earth and Planetary Science Letters, 49(1), 8-20, https://doi.org/10.1016/0012-821X(80)90144-2
    Publication Date: 2023-08-28
    Description: A submersible dive on a turbidite-covered spreading axis in Guaymas Basin photographed and sampled extensive terraces and ledges of talc. The rock contains siliceous microfossils, smectite, and euhedral pyrrhotite as well as rather pure iron-rich talc. Sulfur and oxygen isotopes indicate precipitation around a hydrothermal vent, at about 280°C.
    Keywords: CDRILL; Core drilling; Deposit type; DEPTH, sediment/rock; Description; Dive 308; DSV477; DSV477-308-1; DSV477-308-3; DSV-4 Seacliff; Event label; File name; Guaymas Basin, Gulf of California; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Photo/Video; Position; PV; Quantity of deposit; Sediment type; Substrate type; Uniform resource locator/link to image; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 18 data points
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  • 74
    Publication Date: 2023-08-28
    Description: Leg 55 was conceived as part of the decade-long experiment to test the kinematic hot-spot hypothesis and several of its more imporant corollaries for the origin of the Hawaiian-Emperor chain. Also of particular importance was the question of whether the Hawaiian hot spot has remained fixed in the mantle. The specific primary objectives of Leg 55, were to determine (1) whether the known increase in the age of the volcanoes on the Hawaiian chain with distance from Kilauea continues northward along the Emperor Seamounts; (2) whether the lavas of the Emperor volcanoes are of the same chemical composition and were erupted in the same sequence as those of Hawaiian volcanoes; (3) the latitude of formation of Suiko Seamount as a test of hot-spot fixity; and (4) whether the Emperor Seamounts were once islands and, if so, to determine their post-volcanic and subsidence history.
    Keywords: 55-430; 55-431; 55-431A; 55-432; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; File name; Glomar Challenger; Identification; Leg55; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/SEDIMENT POND; North Pacific/TERRACE; Position; Quantity of deposit; Sample code/label; Sediment type; Size; Substrate type; Uniform resource locator/link to image; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 196 data points
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  • 75
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    In:  Supplement to: Bonatti, Enrico; Lawrence, James R; Hamlyn, P R; Breger, Dee (1980): Aragonite from deep sea ultramafic rocks. Geochimica et Cosmochimica Acta, 44(8), 1207-1214, https://doi.org/10.1016/0016-7037(80)90074-5
    Publication Date: 2023-08-28
    Description: Aragonite mineralization was observed in serpentinized peridotites from the Romanche and Vema Fracture Zones in the Atlantic and the Owen Fracture Zone in the Indian Ocean, either in veins or as radial aggregates in cavities within the serpentinites. Evidence of incipient dissolution of the aragonite crystals was observed in one case. The aragonites tend to have lower Mg content (〈 0.03%) and higher Sr content (〉 0.95%) relative to other marine aragonites. Their 18O16O, 13C12C and 87Sr86Sr isotopic ratios suggest the aragonite was deposited at ocean floor temperatures from solutions derived from sea water circulating in fissures and fractures within the ultramafic rocks. The 18O16O ratios of the serpentines indicate serpentinization occurred at higher temperatures, probably deeper in the crust. Low-T reactions between circulating seawater and Mg-silicates (primarily serpentine and pyroxenes) caused high pH and enrichment of Mg and Ca in the solution, conditions favoring carbonate precipitation. Aragonite was formed rather than calcite presumably because the high Mg2+ concentration in the solution inhibited calcite precipitation. The high Sr content of the aragonites is probably related, at least in part, to their low temperature of formation. Opaque mineral grains containing over 8% NiO and over 40% MnO were observed concentrated along the margins of some of the aragonite veins, suggesting that Ni is one of the elements mobilized during reactions between ultramafic rocks and circulating seawater.
    Keywords: Aluminium oxide; Calcium oxide; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Electron microprobe (EMP); G-7309; G-7309-81; Gerda; Identification; Iron oxide, FeO; Magnesium oxide; Manganese oxide; Nickel oxide; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Potassium oxide; Romanche Fracture Zone, Atlantic Ocean; Sample code/label; Silicon dioxide; Sodium oxide; Substrate type
    Type: Dataset
    Format: text/tab-separated-values, 14 data points
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  • 76
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    In:  Supplement to: deVries Klein, George; Kobayashi, Kazuo; White, Stan (1980): Initial Reports of the Deep Sea Drilling Project. U.S. Government Printing Office, LVIII, 1013 pp, https://doi.org/10.2973/dsdp.proc.58.1980
    Publication Date: 2023-08-28
    Description: The JOIDES Active Margin Panel for Leg 58 decided that the drilling would occur in the north Philippine Sea, namely, the Shikoku Basin, the Daito Ridge and Basin province. The Shikoku Basin sites were selected to solve several problems concerning back-arc basins formed by ocean-floor spreading. The main objectives were: (1) to determine the age of the oldest sediment, so as to calibrate magnetic-anomaly ages and to provide a test for various spreading models suggested for the basin; (2) to investigate the mineralogy, petrology, and chemistry of basalt samples recovered by drilling, and to compare there basalts with those of midocean ridges, so as to understand the nature and source of magmatic materials in these basins; (3) to determine the distribution of sediment types in time, and to relate that distribution to the tectonic history of the basin.
    Keywords: 58-442A; 58-442B; 58-443; 58-444; 58-445; 58-446; 58-446A; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Leg58; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/BASIN; North Pacific/Philippine Sea/BASIN; Position; Quantity of deposit; Sample code/label; Sediment type; Size; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 301 data points
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  • 77
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    In:  Supplement to: Wories, Henk; Whelan, Jean K; Thompson, Peter R; Sakai, Toyusaburo; Robinson, Paul T; Pisciotto, Kenneth A; Murdmaa, Ivar O; Müller, German; Kurnosov, Victor B; Harper, Howard E; Bruns, T; Adelseck, C; Langseth, Marcus G; Okada, Hakuyu (1980): Initial Reports of the Deep Sea Drilling Project. U. S. Government Printing Office, LVI, 436 pp, https://doi.org/10.2973/dsdp.proc.5657.1980
    Publication Date: 2023-08-28
    Description: The Japan Trench area was identified a favorable place for studying convergent margins during the initial deliberations of the IPOD Active Margins Panel. The Leg 56-57 DSDP drill sampling along the Japan Trench transect has indicated that material tectonically accreted during the present convergent episode is limited to a surprisingly small zone. The limits seem well established by the seaward extent of crust with continental thickness and lithologies and by the age and thickness of a terrigenous slope apron covering the presumed but probably unsampled accreted oceanic material.
    Keywords: 56-434B; 56-436; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; File name; Glomar Challenger; Identification; Leg56; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/RIDGE; North Pacific/TRENCH; Position; Quantity of deposit; Sample code/label; Sediment type; Substrate type; Uniform resource locator/link to image; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 77 data points
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  • 78
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    In:  Supplement to: Dalrymple, G Brent; Garcia, M O (1980): Age and Chemistry of Volcanic Rocks Dredged from JingƄ Seamount, Emperor Seamount Chain. In: Jackson, E.D.; Koisumi, I.; et al., Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, LV, 685-693, https://doi.org/10.2973/dsdp.proc.55.130.1980
    Publication Date: 2023-08-28
    Description: 40Ar/39Ar incremental heating experiments on three samples dredged from Jingu Seamount indicate that Jingu is 55.4 ± 0.9 m.y. old — older than the Hawaiian-Emperor bend and younger than the two dated Emperor Seamounts to the north. Major-oxide chemistry and petrography show that the samples are similar to hawaiites and mugearites from the Hawaiian Islands. By analogy with Hawaiian alkalic volcanic rocks, groundmass plagioclase compositions (An40-47) indicate that the three Jingu samples are probably mugearites. These results suggest that Jingu is a Hawaiian-type volcano and that the Emperor volcanoes become progressively older from south to north, as predicted by the hot-spot hypothesis.
    Keywords: Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; DSDP; Identification; Kana Keoki; KK760806; KK760806-01,KK760806-02,KK76; KK760806-2 STA24 RD10; KK760806-RD10; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Position; Quantity of deposit; Sediment type; Size; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 8 data points
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  • 79
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    In:  Supplement to: Juteau, Thierry; Eissen, Jean-Philippe; Francheteau, Jean; Needham, David; Choukroune, P; Rangin, Claude; Séguret, Marie J M; Ballard, R D; Fox, P J; Normark, William R; Carranza, A; Cordoba, D; Guerrero, J (1980): Homogeneous basalts from the East Pacific Rise at 21° N: seady state magma reservoirs at moderately fast spreading centers. Oceanologica Acta, 3(4), 487-503, https://archimer.ifremer.fr/doc/00323/43430/
    Publication Date: 2023-08-28
    Description: Forty basaltic rocks collected by submersible during the Cyamex expedition (1978) on the East PacifIc Rise at 21°N, a moderately fast spreading segment (6 cm/year opening rate) of the mid-ocean ridge, consist of angular pillow fragments and glass buds, sheet-flow slabs and samples of columnar pillars standing in collapsed fossillava pools. Most of the rocks are from the crestal are a of the Rise. The collection shows a striking petrographic homogeneity wh en compared with the range of basalts found on other segments of midocean ridges: olivine-phyric, or highly plagioclase-phyric rocks, so common in the slowspreading Famous are a in the Atlantic, are absent. All samples are typical lowpotassium oceanic tholeiites with a limited fractionation trend. Pillow-lavas, thin and thick sheet-flows cannot be distinguished by their major element compositions, as in the Galapagos rift which has the same spreading rate as the EPR at 21°N. Further, ferrobasalts have been described from the Galapagos rift, but do not appear in the Cyamex rocks. In the Cyamex area, olivine and plagioclase are the main silicate phases, and clinopyroxene is absent. In the pillows and sheet-flow samples, four generations of olivine and plagioclase crystals are distinguished. Samples from the fossillava pools are aphyric. The corresponding magma batches are presumed to have migrated rapidly through the magma chamber, and to have been extruded in large volumes, possibly during episodes ofhigh instantaneous opening rate. Fe-Ni and Fe-Cu-rich sulphide phases are common in an lava types as massive globules scatterred through the glass, or as microglobules decorating the walls of empty vesicles. Palagonite and Fe-Mn oxide thicknesses across the strike of the Rise indicate relative ages compatible with successive extrusions at the Rise axis.
    Keywords: CY-78-07-12D; CY-78-10-17D; CY-78-10-18D; CY-78-11-26D; CY-78-12-35D; CY-78-13-42D; CY-78-13-43D; CY-78-13-44D; CY-78-15-55D; CY-78-15-56D; CY-78-16-57D; CY-78-16-58D; CY-78-17-60D; CY-78-17-61D; CY-78-18-63D; CY-78-18-65D; CY-78-18-66D; CY-78-19-69D; CY-78-20-76D; CYAMEX; Cyana (Submersible); Deposit type; DEPTH, sediment/rock; Description; East Pacific Rise; Elevation of event; Event label; Identification; Latitude of event; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Percentage; Position; ROBA; Robotic arm; Sediment type; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 108 data points
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  • 80
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    In:  Hawaii Institute of Geophysics & Planetology, University of Hawaii
    Publication Date: 2023-08-28
    Description: This report represents the first in a projected series reporting core descriptions and their physical properties, to be made available through routine core handling procedures instituted at the Hawaii Institute of Geophysics in 1968 to keep pace with the capability to take long (120-foot) piston cores from the University of Hawaii's R/V MAHI. The data reported herein cover sediment cores collected during 1967, 1968, and 1969 in the region of the Solomon Islands and the Darvir. Rise, and along the central portion of the Murray Fracture Zone.
    Keywords: ABHI68-PC001; ABHI68-PC002; ABHI68-PC003; ABHI68-PC004; ABHI68-PC024; ABHI68-PC025; ABHI68-PC029; ABHI68-PC031; ABHI68-PC033; ABHI68-PC034; ABHI68-RD1; ABHI68-RD2; ABHI68-RD6; ABHI68-RD8; AbyssalHills_68; Age, comment; Deposit type; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Description; Dredge, rock; DRG_R; Elevation of event; Event label; GC; Gravity corer; Identification; Latitude of event; Longitude of event; Mahi; Method/Device of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; PC; Piston corer; Position; Quantity of deposit; Sediment type; Size; SOLI67-GC-009; SOLI68-RD24; SOLI68-RD26; SOLI68-RD27; SOLI68-RD3; SOLI68-RD32; SOLI68-RD33; SOLI68-RD6; Solomon Islands_67; Solomon Islands_68; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 350 data points
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  • 81
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    In:  Supplement to: Malfait, Bruce Terry (1975): The Carnegie Ridge near 86⁰ W. : structure, sedimentation and near bottom observations. Ph. D. Dissertation), Oregon State University, USA, 142 pp, hdl:1957/28552
    Publication Date: 2023-08-28
    Description: The Carnegie Ridge is a linear, aseismic, submarine ridge lying between the Galapagos Islands and the coast of South America. Surface ship, near bottom, and grain size studies from the saddle have been used to delineate the present geological environment and history of the ridge. Structurally the Carnegie Ridge is rather simple in profile, being bounded by east-west trending scarps which give the ridge a block-faulted appearance. Acoustic basement over the ridge appears smooth on reflection profiles and is composed of chert. The sedimentary sequence above the chert horizon contains a lower chalk unit overlain by calcareous ooze. Where erosion has exposed the chalk a karst-like micro-topography is present which is characterized by steep walled channels and cliffs and consolidated bed forms undergoing erosion and dissolution. The ridge crest has been stripped of almost its entire sediment cover. Thick sequences of sediment are found only in areas protected from north or south flowing bottom currents. Evidence of erosion is provided by extensive channeling on both the north and south flanks of the ridge. Near bottom observations in one channel on the north flank revealed a large field of sand dunes indicating northward, downslope sediment transport. These dunes are found on manganese-encrusted chalk which floors the channel.
    Keywords: Carnegie Ridge, Pacific Ocean; Comment; Deposit type; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Description; Event label; FFC; File name; Free fall corer; Identification; MG1; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; PC; Photo/Video; Piston corer; Position; PV; Quantity of deposit; Size; Substrate type; Uniform resource locator/link to image; Visual description; Y71-03; Y71-03-20; Y71-03-21C; Y71-03-26PC; Y71-03-30C; Y71-03-32; Y71-03-32C; Y71-03-34C; Yaquina
    Type: Dataset
    Format: text/tab-separated-values, 112 data points
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  • 82
    Publication Date: 2023-08-28
    Description: Methods of estimating manganese nodule grade and concentration were investigated using bottom photographs from a well-explored east-central Pacific manganese nodule deposit.
    Keywords: Automated image processing; Coverage; DATE/TIME; Deposit type; DEPTH, sediment/rock; Description; DOMES Site C, Pacific Ocean; ELEVATION; LATITUDE; LONGITUDE; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Nodules, mass abundance; Oceanographer; Photo/Video; PV; RP8OC76; RP-8-OC-76; RP8OC76-3-1C; Sample ID; Statistical inference
    Type: Dataset
    Format: text/tab-separated-values, 1230 data points
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  • 83
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    In:  Supplement to: Cochran, J Kirk; Krishnaswami, Seth (1980): Radium, thorium, uranium, and 210 Pb in deep-sea sediments and sediment pore waters from the North Equatorial Pacific. American Journal of Science, 280(9), 849-889, https://doi.org/10.2475/ajs.280.9.849
    Publication Date: 2023-08-28
    Description: Determination of radium, thorium, uranium isotopes, and 210Pb in sediments and sediment pore waters from North Equatorial Pacific deep-sea clay-silicous oozes shows that the radium and uranium isotopes are mobile in the pore water. The concentration-depth profiles of radium can be understood in terms of a diagenetic model which takes into account mixing of sediment particles by bioturbation, molecular diffusion in the pore water, adsorption onto particle surfaces, as well as radioactive production and decay. The 234U/238U activity ratios in several samples are higher than the seawater value, indicating some enrichment of 234U in the pore water. However, the absolute concentrations of 238U and 234U are 25% lower than those in seawater, suggesting that the sediments form a sink for uranium isotopes. 210Pb is present in the pore water at concentrations approx. 20% that of 226Ra. The origin of 210Pb in the pore water is uncertain and could be due either to its in situ mobilization in the sediments or subsequent production in the laboratory from the decay of 222Rn. 230Th is present in measurable concentrations in the pore waters, but its distribution does not show any systematic trend with depth or other parameters. The most likely source of 230/Th appears to be minute amounts of sediment particles collected in the pore waters during the squeezing operation.
    Keywords: BC; Box corer; Date/Time of event; DEPTH, sediment/rock; DISTANCE; Distance, maximum; Distance, minimum; DOMES-A47-16; DOMES Site B, Pacific Ocean; DOMES Site C, Pacific Ocean; Elevation of event; Event label; Latitude of event; Lead-210; Lead-210, standard deviation; Lead-210 excess; Lead-210 excess, standard deviation; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Oceanographer; Pacific Ocean; Radium-226; Radium-226, standard deviation; RP8OC75; RP-8-OC-75; RP8OC7503; RP8OC75-47-16; RP8OC75-52-39; RP8OC75-57-58; Sample ID; Sample type; Thorium-228/Thorium-232 activity ratio; Thorium-228/Thorium-232 activity ratio, standard deviation; Thorium-230; Thorium-230, standard deviation; Thorium-230/Thorium-227 activity ratio; Thorium-230/Thorium-227 activity ratio, standard deviation; Thorium-230/Thorium-232 activity ratio; Thorium-230/Thorium-232 activity ratio, standard deviation; Thorium-232; Thorium-232, standard deviation; Uranium-234/Uranium-238 activity ratio; Uranium-234/Uranium-238 activity ratio, standard deviation; Uranium-238; Uranium-238, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 462 data points
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  • 84
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    PANGAEA
    In:  Supplement to: Kadko, David; Burckle, Lloyd H (1980): Manganese nodule growth rates determined by fossil diatom dating. Nature, 287(5784), 725-726, https://doi.org/10.1038/287725a0
    Publication Date: 2023-08-28
    Description: We report here that a manganese nodule from the Central Pacific manganese nodule province has been dated by fossil diatoms found in mud scraped from near the nodule's centre. The nodule was taken at DOMES Site B from Core B55-56 at 11°50.3'N and 137°28.2'W in a water depth of 4,892 m. It was resting on the sediment surface, with about 1.5 cm of the nodule bottom (of a total nodule height of 4.2 cm) buried in the mud. The top surface of the nodule was covered with a smooth manganese coating, but the bottom had a very rough, crusty texture. It was found that recent mud had leaked in through cracks in the nodule bottom, but that there were no pre-Pleistocene diatoms in this material. The date obtained was compared with the growth rate determined by the 230Th excess method and found to be in reasonable agreement. This study adds to the work of Harada1,2 on the biostratigraphy (mainly coccoliths) of manganese nodules.
    Keywords: Alpha counting; BC; Box corer; Deposit type; DEPTH, sediment/rock; Description; DISTANCE; DOMES Site B, Pacific Ocean; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Oceanographer; RP-8-OC-75; RP8OC7503; RP8OC75-55-56; Thorium-230 excess; Thorium-230 excess, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 33 data points
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  • 85
    Publication Date: 2023-08-28
    Description: The American Deep Sea Drilling Project (JOIDES) has agreed to drill several holes into the deep sea sediments at sites in the NE Atlantic suggested by UK and French scientists. These sites have been chosen on the basis of data collected over several years in the areas of Rockall, the Bay of Biscay and King's Trough. On Cruise 33 we undertook to make more detailed seismic reflection surveys of three of these sites in order to guide the choice of the exact hole position and to provide supplementary data. The following three sites were surveyed: Site A in the Hatton-Rockall Basin, Site B in Rockall Trough, Site C on the Azores-Biscay Rise. (2) The southeast end of King's Trough (Peake and Freen Deeps) was studied in detail in Cruises 4 and 11 of R. R. S. 'Discovery' in 1965 and 1966. The results of this work (Matthews et al. , 1969) were not conclusive about the origin of King's Trough. The major part of Cruise 33 was concerned, therefore, with obtaining more geological and geophysical data about King's Trough and its relationship to sea floor spreading occurring to the west on the mid-Atlantic Ridge.
    Keywords: Atlantic Ocean; D33; D7285; D7294; D7296; D7297; Deposit type; DEPTH, sediment/rock; Description; Discovery (1962); Dredge; DRG; Elevation of event; Event label; Identification; Latitude of event; Longitude of event; Method/Device of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
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  • 86
    Publication Date: 2023-08-28
    Keywords: 51-417A; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Identification; Leg51; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/CONT RISE; Position; Quantity of deposit; Sample code/label; Sediment type; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
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  • 87
    Publication Date: 2023-08-28
    Keywords: Age, comment; Aluminium oxide; Atomic emission spectroscopy (AES); Barium; Beal Traversier, Hautes-Alpes, France; Bois Durat, Hautes-Alpes, France; BRB-B; BRB-BD; BRB-BT; BRB-C; BRB-CBO; BRB-CBR; BRB-CC; BRB-CF; BRB-COU; BRB-CQ; BRB-CR; BRB-CV; BRB-E; BRB-Ey; BRB-FS; BRB-GB; BRB-GE; BRB-L; BRB-LAU; BRB-LBL; BRB-M; BRB-MMA; BRB-MN; BRB-MO; BRB-MS; BRB-O; BRB-OB; BRB-P; BRB-PEY; BRB-Pl; BRB-RA; BRB-RAS; BRB-RCV; BRB-RG; BRB-RSR; BRB-RSRW; BRB-SA; BRB-SCN; BRB-SOU; BRB-STC; BRB-TN; BRB-VAL; BRB-VC; Calcium oxide; Carbon dioxide; Cariiere de la Lame, Hautes-Alpes, France; Chromium; Clot de la Cime, Hautes-Alpes, France; Clot des Fonds, Hautes-Alpes, France; Cobalt; Col de la Pisse, Hautes-Alpes, France; Col du Lauzon, Hautes-Alpes, France; Colonel Bonnet, Hautes-Alpes, France; Combe Bremond, Hautes-Alpes, France; Condamine, Hautes-Alpes, France; Copper; Coste Rousse, Hautes-Alpes, France; Couloir du Queyrellin, Hautes-Alpes, France; Crete de la Plate, Hautes-Alpes, France; Crete des Couniets, Hautes-Alpes, France; Crete de Vars, Hautes-Alpes, France; Deposit type; DEPTH, sediment/rock; Elevation of event; Event label; Eychauda, Hautes-Alpes, France; Eygliers, Hautes-Alpes, France; Fluorine; Font Sancte, Hautes-Alpes, France; Fort de l'Olive, Hautes-Alpes, France; HAM; Hammer; Identification; Iron oxide, Fe2O3; Lac Blanc, Hautes-Alpes, France; Lac de l'Ascencion, Hautes-Alpes, France; Lac du Vallonnet, Hautes-Alpes, France; Latitude of event; La Vachette, Hautes-Alpes, France; Lead; Longitude of event; Loss on ignition; Magnesium oxide; Manganese oxide; Montbrison Nord, Hautes-Alpes, France; Montbrison Sud, Hautes-Alpes, France; Monte Maniglia, Hautes-Alpes, France; Mouliere, Hautes-Alpes, France; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Ombilic, Hautes-Alpes, France; Peyron, Hautes-Alpes, France; Phosphorus pentoxide; Pic Balart, Hautes-Alpes, France; Pointe de Rasis, Hautes-Alpes, France; Potassium oxide; Ratier, Hautes-Alpes, France; Replat des Genisses, Hautes-Alpes, France; Roche Chevalire, Hautes-Alpes, France; Roche Gauthier, Hautes-Alpes, France; Rocher du Roux, Hautes-Alpes, France; Rocher du Roux Ouest, Hautes-Alpes, France; Sablier, Hautes-Alpes, France; Sample code/label; Serre Chevalier, Hautes-Alpes, France; Silicon dioxide; Sodium oxide; Souliers, Hautes-Alpes, France; St Crepin, Hautes-Alpes, France; Strontium; Sulfur, total; Tete Noire, Hautes-Alpes, France; Titanium dioxide; Torrent du Grand Bois, Hautes Alpes; Vanadium; Wet chemistry; Yttrium; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 2863 data points
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  • 88
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    PANGAEA
    In:  Supplement to: Shima, Makoto; Okada, Akihiko (1974): Study on the managanese nodule (VIII) Inhomogeneous chemical distribution of manganese nodules (in Japanese). Scientific Report of the Institute of Physical and Chemical Research, 50, 151-158, hdl:10013/epic.46490.d001
    Publication Date: 2023-08-28
    Description: Chemical analyses were performed on seveteen manganese nodules collected from the Pacific Ocean floor. The results were discussed compared with the previous data on the manganese nodules. Minerals were found to be todorokite, delta-MnO2 and other silicates, montmorillonite, illite, phillipsite and alpha-SiO2. Average composition shows that copper is concentrated on the deep sea nodules more than the shallow ones, and that the todorokite rich nodules contain more copper and nickel than the delta-MnO2 rich ones.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 89
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    In:  Supplement to: Friedrich, Günther; Kunzendorf, Helmar; Plüger, W L (1974): Ship-borne geochemical investigations of deep-sea manganese-nodule deposits in the Pacific using a radioisotope energy-dispersive X-ray system. Journal of Geochemical Exploration, 3(4), 303-317, https://doi.org/10.1016/0375-6742(74)90001-6
    Publication Date: 2023-08-28
    Description: A radioisotope energy-dispersive X-ray (EDX) system has been used on board the German research vessel "Valdivia" during an exploration expedition in the northern equatorial Pacific in 1973. The instrumentation used consisted of an X-ray detection system incorporating a 30 mm2 effective-area Si (Li) detector with a measured energy resolution of 195 eV for Mn K alpha X-rays, standard nuclear electronics, a 1024-channel analyser and a data read-out unit. The X-ray spectra in the manganese-nodule samples were excited by a 30-mCi 238Pu source. The six elements Mn, Fe, Co, Ni, Cu and Zn were analysed on board. Precision values for the analyses were less than 3% for Mn, Fe, Ni, Cu and Zn and about 5% for Co. A total amount of 350 analyses was carried out during a one-month cruise. Average contents of 190 analysed whole manganese-nodule samples from all the sampling sites of the covered area were 23.3% Mn, 6.7% Fe, 0.23% Co, 1.16% Ni, 0.94% Cu and 0.10% Zn. The average content of the base metals expressed as the sum of the Co, Ni, Cu and Zn contents was 2.48%. A linear relationship between Mn and Ni in all analysed samples, including whole manganese-nodule samples, zones of manganese nodules and manganese crusts, was observed. The Mn/Ni ratio calculated by regression analysis was 23.0. Zonal variations of the chemical contents of the six elements in the manganese nodules were found. A size classification of the manganese nodules has been suggested. Geochemical correlations of Cu and Ni versus Mn/Fe in the investigated samples are given.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 90
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    PANGAEA
    In:  Supplement to: Okada, Akihiko; Shima, Makoto (1970): Study on the manganese nodule (in Japanese). Journal of Oceanographical Society of Japan, 26(3), 151-158, https://www.jstage.jst.go.jp/article/kaiyou1942/26/3/26_3_151/_article
    Publication Date: 2023-08-28
    Description: Chemical and X-ray analyses were performed on the fifteen manganese nodules collected from the Pacific Ocean floor. The results were discussed compared with the previous data on the manganese nodules. Minerals were found to be todorokite, delta-MnO2 and other silicates, montmorillonite, illite, phillipsite and alpha-Si02. Average composition shows that copper is concentrated on the deep sea nodules more than the shallow ones, and that the todorokite rich nodules contain more copper and nickel than the delta-MnO2 rich ones. The analyses of fresh water iron-manganese precipitates by bacterial activity suggest that biological process is one of the important factors on the genesis of the sedimentary iron-manganese deposits, in¬cluding the manganese nodule.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 91
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    In:  Supplement to: Herzer, Richard Howard (1970): A geological reconnaissance of Bowie Seamount (MS thesis). University of British Columbia, Vancouver, Canada, 112 pp, https://open.library.ubc.ca/cIRcle/collections/831/items/1.0053140
    Publication Date: 2023-08-28
    Description: Bowie Seamount, a submerged volcano situated off the west coast of Canada at 53° 18; N, 135° 39' W, has a relief of 10,000 ft. and comes to within 100 ft. of the ocean surface. It is made up of a series of intersecting ridges which together give the mountain an overall northeast - southwest elongation. It appears to be a combination central and fissure type volcano which has been built up over a system of intersecting fractures in the oceanic crust. Two terraces form the flattened summit of the volcano at approximate depths of 45 and 130 fathoms. These are thought to be the remains of platforms produced by combined wave erosion and shallow-water vulcanism during late Quaternary time when sea level was lower than it is today. The last phase of volcanic activity on the summit occurred after the formation of the upper terrace no more than 18,000 years ago. Samples dredged from the upper half of the volcano include: pillow fragments, fragments of non-pillowed flows, pillow breccias, bombs, tuffs, ash, and unsorted tephra. The rocks are mainly alkali olivine basalts, accompanied by rare andesites which, presumably, were derived by differentiation of the basaltic magma. Feldspathic and gabbroic inclusions, many of which appear to be cumulates, are common in the basalt. Ice-rafted rocks are rare on the summit of Bowie Seampunt but are common on its nearest neighbour - Hodgkins Seamount. A ferro-manganese deposit, apparently over 1 million years old, that exists on the summit of Hodgkins Seamount, suggests that this peak is relatively much older than the summit area of Bowie Seamount. Palagonite appears to form as the initial phase of weathering of glassy basalts in the area of study but the products of more advanced weathering are montraorillonite and zeolites. Rock fragments that have been rounded by chemical weathering are common.
    Keywords: 67-2; 67-3; 68-1; 68-8; Comment; Deposit type; DEPTH, sediment/rock; Description; Dredge, pipe; DRG_P; Elevation of event; EN67-BW-02; EN67-BW-03; EN68-BW-01; EN68-BW-08; Event label; Latitude of event; Longitude of event; Method/Device of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North-East Pacific Ocean; Position; Quantity of deposit; Sample ID; Sediment type; Size; Substrate type; Uniform resource locator/link to image
    Type: Dataset
    Format: text/tab-separated-values, 46 data points
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  • 92
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    In:  Supplement to: MacDonald, Richard Drummond (1970): Marine geology of Upper Jervis Inlet (MS thesis). University of British Columbia, Vancouver, Canada, 146 pp, https://open.library.ubc.ca/cIRcle/collections/831/items/1.0053136
    Publication Date: 2023-08-28
    Description: Manganese-iron oxide concretions are presently forming on Patrick Sill in upper Jervis Inlet. The marine geology of Patrick Sill and the adjoining basins (Queen's Reach and Princess Royal Reach) was studied to define the environment in which the concretions form. The river at the inlet head is the principal source of sediment to the upper basin. The average grain size of surficial bottom sediments within this basin decreases uniformly with distance from the source. Patrick Sill separates the upper from the lower basin. The sediment distribution pattern within the lower basin differs markedly from the upper basin as there is no dominant source of material but rather many localized sources. Abundant shallow marine faunal remains recovered in deep water sediment samples indicate that sediments deposited as deltas off river and stream mouths periodically slump to the basin floors. Geologic and optical turbidity information for the upper basin can best be explained by slumping from the delta at the inlet head with the initiation of turbidity or density currents. Patrick Sill appears to create a downstream barrier to this flow. The mineralogy of the bottom sediments indicates derivation from a granitic terrain. If this is so, the sediments presently being deposited in both basins are reworked glacial materials initially derived by glacial action outside the present watershed. Upper Jervis Inlet is mapped as lying within a roof pendant of pre-batholithic rocks, principally slates. Patrick Sill is thought to be a bedrock feature mantled with Pleistocene glacial material. The accumulation rate of recent sediments on the sill is low especially in the V-notch or medial depression. The manganese-iron oxide concretions are forming within the depression and apparently nowhere else in the study area. Also forming within the depression are crusts of iron oxide and what are tentatively identified as glauconite-montmorillonoid pellets. The concretions are thought to form by precipitation of manganese-iron oxides on pebbles and cobbles lying at the sediment water interface. The oxide materials are mobile in the reducing environment of the underlying clayey-sand sediment but precipitate on contact with the oxygenating environment of the surficial sediments. The iron crusts are thought to be forming on extensive rocky surfaces above the sediment water interface. The overall appearance and evidence of rapid formation of the crusts suggests they formed from a gel in sea water. Reserves of manganese-iron concretions on Patrick Sill were estimated to be 117 metric tons. Other deposits of concretions have recently been found in other inlets and in the Strait of Georgia but, to date, the extent of these has not been determined.
    Keywords: Description; Dredge; DRG; Figure; Jervis Inlet, Canada; JVIN_G; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Page(s); Sample ID; Uniform resource locator/link to image
    Type: Dataset
    Format: text/tab-separated-values, 29 data points
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  • 93
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    PANGAEA
    In:  Supplement to: Manheim, Frank T; Pratt, Richard M; McFarlin, P F (1980): Composition and origin of phosphorite deposits of the Blake Plateau. In: Bentor, Y.K. (Ed.), Marine Phosphorites - Geochemistry, Occurrence, Genesis, Society of Economic Paleontologists and Mineralogists, Special Publication, 29, 117-137, https://download.pangaea.de/reference/80812/attachments/Manheim-etal_1980.pdf
    Publication Date: 2023-08-28
    Description: An area of about 22,000 km² on the northern Blake Plateau, off the coast of South Carolina, contains an estimated 2 billion metric tons of phosphorite concretions, and about 1.2 billion metric tons of mixed ferromanganese-phosphorite pavement. Other offshore phosphorites occur between the Blake Plateau and known continental deposits, buried under variable thicknesses of sediments. The phosphorite resembles other marine phosphorites in composition, consisting primarily of carbonate-fluorapatite, some calcite, minor quartz and other minerals. The apatite is optically pseudo-isotropic and contains about 6% [CO3]**2- replacing [PO4]**3- in its structure. JOIDES drillings and other evidence show that the phosphorite is a lag deposit derived from Miocene strata correlatable with phosphatic Middle Tertiary sediments on the continent. It has undergone variable cycles of erosion, reworking, partial dissolution and reprecipitation. Its present form varies from phosphatized carbonate debris, loose pellets, and pebbles, to continuous pavements, plates, and conglomeratic boulders weighing hundreds of kilograms. No primary phosphatization is currently taking place on the Blake Plateau. The primary phosphate-depositing environment involved reducing conditions and required at least temporary absence of the powerful Gulf Stream current that now sweeps the bottom of the Blake Plateau and has eroded away the bulk of the Hawthorne-equivalent sediments with which the phosphorites were once associated.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 94
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    In:  Supplement to: Shiki, Tsunemasa; Harada, K; Yoshida, H; Okuda, Y; Aoki, H; Hansen, Henry; Matsuo, K; Kobayashi, Kazuo; Takayama, Toshiaki (1974): Basaltic tuff obtained at the Daini-Kinan Seamount and acidic plutonic rocks collected at the Komabashi-Daini Seamount (in Japanese). Journal of the Geological Society of Japan, 80(10), 489-491, https://doi.org/10.5575/geosoc.80.489
    Publication Date: 2023-08-28
    Description: During the GDP-8 cruise of R/V Bosei-Maru, scientists from the Tokai University surveyed the Kinan seamount chain and the Kyushu-Palau Ridge in the Phillippine Sea. They dredged manganese nodules and ferromanganese crusts formed around basaltic tuff rocks and acid plutonic rock pebbles.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 95
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    PANGAEA
    In:  Supplement to: Whitmarsh, Robert B; Weser, Oscar E; Ross, David A; Syed, A; Boudreaux, J E; Coleman, R G; Fleisher, R L; Girdler, R W; Jipa, D; Kidd, Robert B; Mallik, Tapas Kumar; Manheim, Frank T; Matter, A; Nigrini, Catherine A; Siddiquie, H N; Stoffers, Peter; Supko, Peter R (1974): Site 221. In: Whitmarsh, R.B.; Weser, O.E.; Ross, D.A.; et al., Initial Reports of the Deep Sea Drilling Project, Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, XXIII, 167-210, https://doi.org/10.2973/dsdp.proc.23.105.1974
    Publication Date: 2023-08-28
    Description: Located on the Arabian Abyssal Plain near its southernmost termination, this site recorded continuous Middle Eocene through Pleistocene deep-water sedimentation above oceanic basalt. A chert layer is developed at the base of the Eocene strata. The Eocene through Miocene sequence shows the transition from biogenic ooze to brown clay sedimentation which typifies depositional sites as they move from a ridge crest to a deep-ridge flank position. Above this sequence is an undifferentiated Pliocene-Miocene through Pleistocene interval of terrigenous and calcareous turbidites. The former were derived from the Indus Canyon, and the latter from elsewhere.
    Keywords: 23-221; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Indian Ocean/Arabian Sea/PLAIN; Leg23; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 96
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    In:  Supplement to: Glasby, Geoffrey P (1970): The geochemistry of manganese nodules and associated pelagic sediments from the Indian Ocean. Ph. D. Dissertation, Imperial College of Science, Technology and Medicine (University of London), London, United Kingdom, https://www.worldcat.org/title/930651202
    Publication Date: 2023-08-28
    Description: Manganese nodules from a wide range of marine environments have been analysed for a series of elements by optical spectrography,atomic absorption spectrophotometry and mass spectrometry to assess the influence of the environment of deposition on the trace element assemblage of nodules and a more detailed assessment has been made of the trace element geochemistry of nodules from area 4C on the flanks of the Carlsberg Ridge in the Indian Ocean. The mineralogical characteristics of the nodules are described and a detailed petrographic and Mass spectrometry (A.E.I. MS7) analysis of three selected specimens presented. Finally, a method is developed for the oxygen isotope analysis of manganese nodules and the application to the problems of paleoclimatology discussed. To investigate the correlation of trace element geochemistry of nodules with depth as suggested by Cronan (1967) and Barnes (1967), a detailed comparison of the trace element geochemistry of nodules from shallow water and deep sea environments was undertaken. The results show a fundamental difference in the trace element assemblage of nodules from continental margin environments compared with those from deep sea and seamount environments. The marked enrichment of Mn and consequent depletion of Fe and trade elements in nodules from continental margin environments indicates the influence of diagenetic remobilisation of manganese in reducing environments on the trace element assemblage of manganese nodules. Variations in the mineralogical characteristics of nodules are attributed to variations in the redox conditions at the sediment-water interface and a correlation between nodule mineralogy and trace element geochemistry becomes apparent. The application of these concepts to the assessment of the paleoenvironmental characteristics of deposition of sedimentary manganese ore bodies is discussed. On the Carlsberg Ridge, the distribution of manganese crusts away from the belt of maximum seismicity along the axis of the mid-Ocean Ridge argues strongly against the influence of submarine vulcanism on nodule formation. A consideration of the ocean floor spreading rate indicate5that the thickness of the manganese crusts on the flanks of the Carlsberg Ridge is related to the length of time the nodule has been in contact with seawater. This suggests that, although submarine vulcanicity may have contributed to the overall mass balance of the oceans, manganese nodules form by the direct precipitation of trace elements from sea water. A consideration of the trace element distribution in a series of sediment cores from the flanks of the Carlsberg Ridge indicates that sediment diagenesis plays only a minor role in influencing the trace element distribution in nodules from this environment. Finally, a discussion of the thermodynamics of nodule precipitation is given and the need for a more detailed assessment of the kinetics of uptake of trace elements in nodules stressed.
    Keywords: Argo; AT26601; AT266-45B; ATL266/45/45; Atlantic Ocean; Atlantis (1931); Carlsberg Ridge; D16; D2; D5111; D5127; D5128; D5132; D5137; D6224; D6243; D6249; D6252; D6253; D6254; D6256; D6257; D6263; D6267; D6269; D6271; D6273; Discovery (1962); Dredge; Dredge, rock; DRG; DRG_R; ENDV; ENDV_F127; ENDV_F129; Grab; GRAB; Graveglia_T; Graveglia Valley, Liguria, Italy; Gulf of Aden; HAM; Hammer; HMNZS Endeavour (1944); Horizon; Indian Ocean; Indian Ocean, Carlsberg Ridge; Jervis Inlet, Canada; JVIN_G; Loch_Fyne_B; Loch Fyne, Scotland; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; NOVA05AR-041D; NOVA05HO-03D; NOVA-A; NOVA-A41D; NOVA-H; NOVA-H3D; Photo/Video; PV; South Pacific Ocean; Southwest Pacific Ocean; SYM_1872; SY Mallard
    Type: Dataset
    Format: application/zip, 10 datasets
    Location Call Number Expected Availability
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  • 97
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    PANGAEA
    In:  Supplement to: Fewkes, Ronald H; McFarland, William Douglas; Reinhart, W R (1980): Evaluation of metal resources at and near proposed deep sea mine sites. United States Bureau of Mines, Open File Report, 108-80, 242 pp
    Publication Date: 2023-08-28
    Description: Methods of estimating manganese nodule grade and concentration were investigated using data from a well-explored east-central Pacific manganese nodule deposit. Bulk chemical analyses of 159 nodules recovered from 21 box cores show that the range in metal values between nodules from a single box core is commonly small but may be greater than the range in mean metal content of nodules from widely separated box cores. The metal exhibiting the greatest variability in the 21 box cores is Zn, followed in decreasing order by Cu, Mn, Co, Ni, and Fe. Approximately half of the box cores required analysis of 11 nodules or more to predict metal content within plus or minus 10 percent of the mean value.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 4 datasets
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  • 98
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Kadko, David (1980): 230Th, 226Ra and 222Rn in abyssal sediments. Earth and Planetary Science Letters, 49(2), 360-380, https://doi.org/10.1016/0012-821X(80)90079-5
    Publication Date: 2023-08-28
    Description: A model that predicts the flux of 222Rn out of deep-sea sediment is presented. The radon is ultimately generated by 230Th which is stripped from the overlying water into the sediment. It is shown that the continental contribution of ionium is not significant, and that at low sedimentation rates, biological mixing and erosional processes strongly affect the surface concentration of the ionium. Two cores from areas of slow sediment accumulation, one from a manganese nodule region of the central Pacific and one from the Rio Grande Rise in the Atlantic were analyzed at closely spaced intervals for 230Th, 226Ra, and 210Pb. The Pacific core displayed evidence of biological mixing down to 12 cm and had a sedimentation rate of only 0.04 cm/kyr. The Atlantic core seemed to be mixed to 8 cm and had a sedimentation rate of 0.07 cm/kyr. Both cores had less total excess 230Th than predicted. Radium sediment profiles are generated from the 230Th model. Adsorbed, dissolved, and solid-phase radium is considered. According to the model, diffusional losses of radium are especially important at low sedimentation rates. Any particulate, or excess radium input is ignored in this model. The model fits the two analyzed cores if the fraction of total radium available for adsorption-desorption is about 0.5-0.7, and if K, the distribution coefficient, is about 1000. The flux of radon out of the sediments is derived from the model-generated radium profiles. It is shown that the resulting standing crop of SUP-222 Rn in the overlying water may be considered as an added constraint in budgeting 230Th and 226Ra in deep-sea sediments.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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  • 99
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Shiki, Tsunemasa; Konda, Isao; Musashino, Makoto; Nishida, Shiro; Yasumatsu, Sadao (1974): Some Geological Results of the Bottom Sampling from the Sea off Kwanto District Western Margin of the Northern Pacific (Report of the Cruise GDP-1, 1972). http://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/68769/1/KFMGAL_40_2.pdf, Memoirs of the Faculty of Science Kyoto University Series of Geology and Mineralogy, 40(2), 95-104, hdl:2433/68769
    Publication Date: 2023-08-28
    Description: The present paper, deals with the results of the bottom sampling. Sampling devices were a gravity corer for heat flow measurement and dredges of bucket type.
    Keywords: Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Event label; GDP-1; GDP-1-13; GDP-1-14; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Position; Quantity of deposit; Sediment type; Size; Substrate type; Tokaidaigaku Maru II; Uniform resource locator/link to image; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
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  • 100
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    Unknown
    PANGAEA
    In:  Supplement to: Cronan, David S; Thomas, R L (1970): Ferromanganese concretions in Lake Ontario. Canadian Journal of Earth Sciences, 7(5), 1346-1349, https://doi.org/10.1139/e70-128
    Publication Date: 2023-08-28
    Description: A large deposit of ferromanganese oxide concretions has been found in the northern portion of Lake Ontario. The concretions occur mainly in the form of coatings on sand grains but manganese nodules are present at several localities. Mineralogically, the ferromanganese oxide phases are amorphous, and their Fe and Mn contents are similar to those in concretions from other environments. However, their Ni, Co, and Cu contents are significantly higher than those reported in previously described North American lacustrine ferromanganese concretions, and this may, in part, be a reflection of their probable low rates of accumulation.
    Keywords: Atomic absorption spectrometry (AAS); Calcium; Cobalt; Copper; DEPTH, sediment/rock; Iron; Lake Ontario; Lake-Ontario_K2; Magnesium; Manganese; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Potassium; Sample ID; Sodium; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 11 data points
    Location Call Number Expected Availability
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