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  • PANGAEA
  • 1980-1984  (89)
  • 1975-1979
  • 1981  (89)
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  • 1980-1984  (89)
  • 1975-1979
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  • 1
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    PANGAEA
    In:  EPIC3Berichte aus dem Institut für Meereskunde an der Christian-Albrechts-Universität Kiel, Bremerhaven, PANGAEA, 80, 118 p.
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 2
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    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 3
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    PANGAEA
    In:  EPIC3"Meteor" Forschungs-Ergebnisse, C, Bremerhaven, PANGAEA, 35, pp. 23-59
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 4
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    PANGAEA
    In:  EPIC3Offa, Berichte und Mitteilungen zur Urgeschichte, Frühgeschichte und Mittelalterarchäologie, Bremerhaven, PANGAEA, 38, pp. 365-376
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: PANGAEA Documentation , notRev
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  • 5
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    PANGAEA
    In:  Supplement to: Seifert, Karl E; Vallier, Tracy L; Windom, Kenneth E; Morgan, S R (1981): Geochemistry and petrology of igneous rocks, Deep Sea Drilling Project Leg 62. In: Thiede, J; Vallier, TL; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 62, 945-953, https://doi.org/10.2973/dsdp.proc.62.149.1981
    Publication Date: 2023-07-10
    Description: Igneous rocks were recovered from three sites on Hess Rise during Deep Sea Drilling Project Leg 62: altered basalt at Site 464, at the northern end of Hess Rise; and altered trachyte from Site 465, and rounded basalt pebbles in upper Albian to middle Miocene sediments from Site 466, both at the southern end of Hess Rise. Major-, minor-, and trace-element data for basalt from Hole 464 are consistent with these rocks being transitional tholeiites that have undergone low-temperature alteration by reaction with sea water. Trachyte from Hole 465A exhibits as many as three generations of plagioclase along with potash feldspar that are flow aligned in groundmasses alterted to smectites and random mixed-layer clays. Textural evidence indicates that these rocks were eruped subaerially. Chemical data show a range of values when plotted on two- and three-component variation diagrams. The observed variations may result in part from differentiation, but they also reflect the high degree of alteration. Several oxides and elements show strong correlation with H2O+: K2O, SiO2, Rb and Lu decrease and MgO increases with increasing H2O+. These trends, except for that of Lu, are consistent with experimentally determined changes in chemistry that accompany alteration. The trend for Lu has not been previously reported; it may result from a more-intense alteration of the HREE-rich mafic minerals than of the LREE-rich feldspars. Despite their alteration, the trachytes compare favorably with alkalic differentiates from oceanic islands. We interpret Hess Rise as a volcanic platform formed by eruption of off-ridge volcanic rocks onto MORB oceanic crust during the Aptian and Albian stages, after the basement had migrated away from the spreading center. By analogy with present oceanic islands, we propose that early tholeiitic basalts were followed by alkalic basalts and their differentiation products (trachytes), producing a volcanic archipelago of islands and seamounts. Subsequent tectonism and subsidence led to the present state of Hess Rise.
    Keywords: 62-464; 62-465A; Aluminium oxide; Barium; Calcium oxide; Carbon dioxide; Cerium; Cobalt; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Europium; Event label; Glomar Challenger; Hafnium; Instrumental neutron activation analysis (INAA); Iron oxide, Fe2O3; Iron oxide, FeO; Lanthanum; Leg62; Lutetium; Magnesium oxide; Manganese oxide; North Pacific/CONT RISE; Phosphorus pentoxide; Potassium oxide; Rubidium; Samarium; Sample code/label; Sample ID; Scandium; Silicon dioxide; Sodium oxide; Strontium; Tantalum; Terbium; Thorium; Titanium dioxide; Total; Water in rock; X-ray fluorescence (XRF); Ytterbium; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 702 data points
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  • 6
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    PANGAEA
    In:  Supplement to: Seifert, Karl E (1981): Geochemistry of Nauru Basin basalts from the lower portion of Hole 462A, Deep Sea Drilling Project Leg 61. In: Larson, RL; Schlanger, SO; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 61, 705-708, https://doi.org/10.2973/dsdp.proc.61.129.1981
    Publication Date: 2023-07-10
    Description: Atomic-absorption spectrophotometry and instrumental neutron activation analysis were used to determine concentrations of SiO2, Al2O3, FeOt, MgO, CaO, Na2O, K2O, MnO, La, Ce, Sm, Eu, Tb, Yb, Lu, Sc, Co, Cr, Th, Hf, and Ta for 14 basalt samples from the lower portion of Hole 462A in the Nauru Basin. The basalts are similar to normal midocean ridge basalt (MORB) for the elements analyzed, and light rare-earth elements (LREE) are depleted relative to heavy rare-earth elements (HREE). Two samples are extensively altered to smectites and show significant reductions in Al2O3, CaO, MnO, Na2O, REE, Sc, Co, and Hf and gains in MgO and FeOt relative to unaltered samples. The increase in MgO and decrease in CaO indicate that alteration was caused by hydrothermal solutions.
    Keywords: 61-462A; Aluminium oxide; Atomic absorption spectrometry (AAS); Calcium oxide; Cerium; Chromium; Cobalt; Deep Sea Drilling Project; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Europium; Glomar Challenger; Hafnium; Instrumental neutron activation analysis (INAA); Iron oxide, FeO; Lanthanum; Leg61; Lutetium; Magnesium oxide; Manganese oxide; Potassium oxide; Samarium; Sample code/label; Scandium; Silicon dioxide; Sodium oxide; Tantalum; Terbium; Thorium; Ytterbium
    Type: Dataset
    Format: text/tab-separated-values, 317 data points
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  • 7
    Publication Date: 2023-07-10
    Keywords: A150/180; A180-73; Atlantic Ocean; Atlantische Kuppenfahrten 1967/1-3; BC; BCR; Box corer; Box corer (Reineck); Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; East Atlantic; Elevation of event; Event label; GIK12309-2; GIK12310-4; GIK12328-5; GIK12329-6; GIK12331-4; GIK12345-5; GIK12347-2; GIK12379-3; GIK12392-1; GIK13207-3; GIK13209-2; GIK13289-1; Grain size, mean radius; KAL; Kasten corer; KOL; Latitude of event; Longitude of event; M12392-1; M25; M8; M8_017-1; M8/17-1; Meteor (1964); off NW Africa; PC; Piston corer; Piston corer (Kiel type); Size fraction 〉 0.006 mm, silt; South Atlantic Ocean; SP8-4; SPC; Sphincter corer; V10; V10-83; V16; V16-20; V19; V19-303; V22; V22-197; V23; V23-100; V23-91; V25; V25-44; V26; V26-41; V27; V27-178; V31; V31-2; V32; V32-31; VA-10/3; Valdivia (1961); Vema
    Type: Dataset
    Format: text/tab-separated-values, 103 data points
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  • 8
    Publication Date: 2023-07-07
    Keywords: 52-418A; Aluminium oxide; Calcium oxide; Clinopyroxene; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Iron oxide, FeO; Leg52; Magnesium oxide; Matrix; North Atlantic/CONT RISE; Olivine; Plagioclase; Potassium oxide; Sample code/label; Sample method; Silicon dioxide; Titanium dioxide
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
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  • 9
    Publication Date: 2023-07-07
    Keywords: 51-417D; Aluminium oxide; Calcium oxide; Clinopyroxene; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Iron oxide, FeO; Leg51; Magnesium oxide; Matrix; North Atlantic/CONT RISE; Olivine; Plagioclase; Potassium oxide; Sample code/label; Sample method; Silicon dioxide; Titanium dioxide
    Type: Dataset
    Format: text/tab-separated-values, 52 data points
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  • 10
    Publication Date: 2023-07-07
    Keywords: 53-418A; Aluminium oxide; Calcium oxide; Clinopyroxene; Comment; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Iron oxide, FeO; Leg53; Magnesium oxide; Matrix; Olivine; Plagioclase; Potassium oxide; Sample code/label; Sample method; Silicon dioxide; Titanium dioxide
    Type: Dataset
    Format: text/tab-separated-values, 166 data points
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  • 11
    Publication Date: 2023-07-10
    Keywords: 61-462; 61-462A; Deep Sea Drilling Project; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Leg61; Sample code/label; Sand; Silt; Size fraction 〈 0.002 mm, clay; Wet sieve shaker
    Type: Dataset
    Format: text/tab-separated-values, 305 data points
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  • 12
    Publication Date: 2023-07-10
    Keywords: 62-463; Acaeniotyle diaphorogona; Acaeniotyle umbilicata; Acanthocircus carinatus; Acanthocircus dicranacanthos; Acanthocircus sp.; Acanthocircus trizonalis; Alievum antiguum; Alievum helenae; Amphibrachium hastatum; Amphipyndax mediocris; Archaeodictyomitra apiarium; Archaeodictyomitra brouweri alfa; Archaeodictyomitra lacrimula; Archaeodictyomitra nuda; Archaeodictyomitra pseudoscalaris; Archaeodictyomitra puga; Archaeodictyomitra vulgaris; Archaeospongoprunum cortinaensis; Archeospongoprunum tehamaensis; Archicapsa similis; Conosphaera tuberosa; Crolanium pythiae; Cromyodruppa concentrica; Crucella sp.; Cryptamphorella challengeri; Cryptamphorella conara; Cryptamphorella dumitricai; Cyclastrum infundibuliforme; Cyrtocalpis operosa; Cyrtocapsa asseni var. alpha; Cyrtocapsa grutterinki; Cyrtocapsa houwi; Deep Sea Drilling Project; Diacanthocapsa boersmae; Dibolachras tytthopora; Dicroa sp.; Dictyophimus gracilis; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Eucyrtidium thiensis; Eucyrtis columbaria; Eucyrtis elido; Eucyrtis molengraaffi; Eucyrtis sp.; Eucyrtis tenuis; Glomar Challenger; Gongylothorax baumgartneri; Gongylothorax verbeeki; Hagistrum euganeum; Hagistrum subacutum; Hemicryptocapsa sp.; Hemicryptocapsa vincentae; Hexalonche sp.; Hexastylus magnificus; Hexinastrum cretaceum; Higumastra sp.; Holocryptocanium barbui; Holocryptocapsa hindei; Homoeoparonaella tricuspidata; Hsuum sp.; Leg62; Lithocampe chenodes; Lithocampe pseudochrysalis var. alpha; Lithomitra pseudopinguis; Lophophaena sp.; Neosciadiocapsa sp.; North Pacific/SEAMOUNT; Paronaella diamphidia; Paronaella sp.; Parvicingula boesii; Parvicingula hsui; Parvicingula malleola; Parvicingula sp.; Pentasphaera longispina; Podobursa triacantha; Podobursa tricola; Pseudoaulophacus excavatus; Pseudoaulophacus sulcatus; Pseudodictyomitra blabla; Pseudodictyomitra carpatica; Pseudodictyomitra lanceloti; Pseudodictyomitra leptoconica; Pseudodictyomitra lilyae; Radiolarian preservation; Radiolarians abundance; Saitoum cepeki; Sample code/label; see reference(s); Sethocapsa orca; Sethocapsa trachyostraca; Sethocapsa uterculus; Siphocampium davidi; Siphocampium macropora; Siphocampium rutteni; Solenotryma sp.; Sphaeropyle thirencis; Sphaerostylus lanceola; Spongobrachium sp.; Spongocyclia trachodes; Spongodiscus misele; Spongopyle ecleptos; Spongosaturnalis horridus; Staurocyclia martini; Staurosphaera septemporata; Stephanastrum inflexum; Stichocapsa cribrata; Stichocapsa decora; Stichocapsa pseudodecora; Stichocapsa pseudopentacola; Stichocapsa sp.; Stichomitra asymbatos; Stylochlamyum sp.; Stylosphaera macrostyla; Thanaria pulchra; Thanarla karpoffae; Theocapsa laevis; Theocorys antiqua; Theocorys renzae; Triactoma hybum; Tripocalpis ellyae; Tripocyclia trigonum; Ultranapora durhami; Ultranapora spinifera; Williriedellum carpathicum; Williriedellum gilkeyi; Williriedellum petershmittae; Xitus alievi; Xitus sp.; Xitus sp. cf. X. spicularius; Xitus spicularius; Xitus vermiculatus
    Type: Dataset
    Format: text/tab-separated-values, 2901 data points
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  • 13
    Publication Date: 2023-07-10
    Keywords: 62-465A; Antimony; Antimony, standard deviation; Arsenic; Arsenic, standard deviation; Chromium; Chromium, standard deviation; Cobalt; Cobalt, standard deviation; Comment; Copper; Copper, standard deviation; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analysis, neutron activation (NAA); Glomar Challenger; Leg62; Molybdenum; Molybdenum, standard deviation; Nickel; Nickel, standard deviation; North Pacific/CONT RISE; Sample, optional label/labor no; Sample code/label; Sample ID; Tantalum; Tantalum, standard deviation; Zinc; Zinc, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 206 data points
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  • 14
    Publication Date: 2023-07-10
    Keywords: 62-464; Axopodorhabdus albianus; Biscutum constans; Chiastozygus litterarius; Cretarhabdus conicus; Cretarhabdus crenulatus; Cretarhabdus loriei; Cribrosphaerella ehrenbergii; Cruciellipsis chiastia; Cyclagelosphaera margerelii; Deep Sea Drilling Project; Discorhabdus ignotus; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Eiffellithus turriseiffelii; Etching index; Gaarderella cf. granulifera; Gephyrorhabdus coronadventis; Glomar Challenger; Leg62; Light microscope; Lithastrinus floralis; Lithraphidites carniolensis; Manivitella pemmatoidea; Nannofossils; Nannofossil zone; North Pacific/CONT RISE; Overgrowth index; Parhabdolithus angustus; Parhabdolithus asper; Parhabdolithus embergeri; Parhabdolithus splendens; Parhabdolithus swinnertonii; Prediscosphaera cretacea; Rucinolithus irregularis; Rucinolithus sp.; Sample code/label; Sollasites horticus; Stephanolithion laffittei; Tegumentum stradneri; Tranolithus orionatus; Vagalapilla compacta; Watznaueria barnesae; Watznaueria biporta; Watznaueria britannica; Watznaueria oblonga; Watznaueria ovata; Watznaueria supracretacea; Zygodiscus diplogrammus; Zygodiscus elegans; Zygodiscus erectus
    Type: Dataset
    Format: text/tab-separated-values, 215 data points
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  • 15
    Publication Date: 2023-07-10
    Keywords: 61-462; 61-462A; Calcium carbonate; Calculated, see reference(s); Carbon, organic, total; Carbon, total; Deep Sea Drilling Project; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analyser CHN, LECO WR-12; Event label; Glomar Challenger; Leg61; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 325 data points
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  • 16
    Publication Date: 2023-07-10
    Keywords: 59-447A; 59-448; 59-448A; 59-449; 59-450; 59-451; Aluminium oxide; Barium; Caesium; Calcium oxide; Cerium; Chromium; Cobalt; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analysis, neutron activation (NAA); Elevation of event; Europium; Event label; Gallium; Glomar Challenger; Hafnium; Iron oxide, Fe2O3; Iron oxide, FeO; Lanthanum; Latitude of event; Leg59; Location; Longitude of event; Magnesium number; Magnesium oxide; Manganese oxide; Nickel; North Pacific/BASIN; North Pacific/Philippine Sea/BASIN; North Pacific/Philippine Sea/RIDGE; North Pacific/RIDGE; Phosphorus pentoxide; Potassium oxide; Rubidium; Sample, optional label/labor no; Sample code/label; Scandium; Silicon dioxide; Sodium oxide; Strontium; Tantalum; Terbium; Thorium; Titanium dioxide; Total; Uranium; X-ray fluorescence (XRF); Yttrium; Zinc; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 623 data points
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  • 17
    Publication Date: 2023-07-07
    Keywords: 63-469; 63-470A; 63-472; 63-472A; 63-473; CIPW Norm; Clinopyroxene; Deep Sea Drilling Project; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Groundmass; Latitude of event; Leg63; Longitude of event; North Pacific/ABYSSAL FLOOR; North Pacific/ESCARPMENT; North Pacific/Gulf of California/CONT RISE; North Pacific/PLATEAU; Olivine; Plagioclase; Sample code/label; Spinel
    Type: Dataset
    Format: text/tab-separated-values, 61 data points
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  • 18
    Publication Date: 2023-07-07
    Keywords: 59-448; 59-448A; Clinopyroxene; Comment; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Leg59; Lithologic unit/sequence; North Pacific/Philippine Sea/RIDGE; Number; Olivine; Orthopyroxene; Plagioclase; Texture; Thickness; Type
    Type: Dataset
    Format: text/tab-separated-values, 250 data points
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  • 19
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    PANGAEA
    In:  Supplement to: Boyce, Robert E (1981): Electrical resistivity, sound velocity, thermal conductivity, density-porosity, and temperature, obtained by laboratory techniques and Well Logs: Site 462 in the Nauru Basin of the Pacific Ocean. In: Larson, RL; Schlanger, SO; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 61, 743-761, https://doi.org/10.2973/dsdp.proc.61.133.1981
    Publication Date: 2023-07-12
    Description: At Deep Sea Drilling Project (DSDP) Site 462, from mudline to 447 meters below the sea floor, Cenozoic nannofossil oozes and chalks have acoustic anisotropies such that horizontal sonic velocities are 0 to 2.5% faster than those in the vertical direction. In laminated chalk, anisotropy of 5% is typical, and in limestones, radiolarian oozes, porcellanites, and cherts, the anisotropies range from 4 to 13%. Middle Maestrichtian volcaniclastics from 447 meters to 560 meters below the sea floor have an acoustic anisotropy of 2 to 32%; 4 to 13% is typical. Basalt flows and sills occur between 560 meters and 1068 meters, and have no apparent anisotropy, but minor interbedded volcaniclastics have anisotropies from 0 to 20% (5% is typical). These volcaniclastics frequently have very small anisotropies, however, compared with the volcaniclastic sequence above the basalt section. Data in cross-plots of the laboratory-measured compressional sound velocity versus wet-bulk density, wet-water content, and porosity of sediments and sedimentary rock typically lie between the equations derived by Wyllie et al. (1956) and Wood (1941); the Wyllie et al. (1956) equation has a fair fit with similar basalt velocity cross-plots. Crossplots of thermal conductivity and sound velocity indicate only a fair correlation. Cross-plots of thermal conductivity versus porosity, wet-water content, and wet-bulk density correlate well with equations derived by Maxwell (1904), Ratcliff (1960), Parasnis (1960), and Bullard and Day (1961). Electrical formation factor versus porosity for sediments and sedimentary rock agrees with the Archie (1942) equation, with m values of 2.6; for basalt, an m of about 2.1 is typical. Basalt pore-water resistivities do not appear to be greatly different from sea water. Formation factors are greater than those derived from equations in Maxwell (1904), Winsauer et al. (1952), Boyce (1968), and Kermabon et al. (1969). An "apparent interstitial water resistivity" (Rwa) curve was derived from the density and induction logs. This Rwa curve indicated an anomaly, at 393.5 to 396.5 meters, which could be interpreted as (1) 76% hydrocarbons, (2) relatively fresh pore water (1.8 per mil salinity), or (3) low-grain-density (2.2 g/cm**3) semi-lithified porcellanite-chert. Porcellanite-chert is the most plausible interpretation. In situ temperatures measured by the Uyeda temperature probe were about 2 to 5°C (50%) higher than the equilibrium temperature (Lachenbruch and Brewer, 1959) extrapolated from two Gearhart-Owen continuous temperature logs; this discrepancy probably arises because the hole was washed out in this depth interval, so these extrapolated temperatures are probably not reliable. If one ignores all precautions as to temperature artifacts, then the equilibrium temperatures of the Gearhart-Owen temperature logs suggest that hydrothermal circulation is occurring in at least the upper 40 meters of the basalt section and heat is transferred by convection and not conduction. Hydrothermal circulation is probably not indicated, however, and the temperature anomalies probably result from excessive artificial cooling of the fractured basalt zones by circulation of water during drilling.
    Keywords: 61-462; Deep Sea Drilling Project; Density, wet bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Formation factor; Gamma ray; Gamma-ray attenuation porosity evaluator (GRAPE); Glomar Challenger; Hole Diameter; Leg61; Lithology/composition/facies; Porosity; Porosity, fractional; Pressure; Resistivity, electrical; Salinity; Sample ID; see reference(s); Temperature, in rock/sediment
    Type: Dataset
    Format: text/tab-separated-values, 200 data points
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  • 20
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    PANGAEA
    In:  Supplement to: Meyer, Klaus-Dieter (1981): Die rote Gesteinsscholle von Schobüll bei Husum (Schleswig-Holstein) - Rotliegendes oder Old Red? Meyniana, 33, 1-7, https://doi.org/10.2312/meyniana.1981.33.1
    Publication Date: 2023-07-11
    Description: The stratigraphic position of the glacially transported 'Scholle' (large-size erratic block) at Schobüll near Husum (Schleswig-Holstein) is now considered to be Devonian rather than 'Rotliegendes'. The 'Scholle', consisting of red clay and dolomite, is overlain by red-colored till without any flint but with up to 90% carbonate clasts (containing 15% dolomite), which indicates an eastern Baltic origin. The relationship of the 'Scholle' with the glacial till also points to an eastern Baltic origin for it, with up to 1 000 km transport distance.
    Keywords: Area/locality; DEPTH, sediment/rock; Description; Dolomite; Event label; Flint; HAND; Hjelm-Moen1978; Limestone; Magmatites; Møn Island, Denmark; Ratio; Sample ID; Sampling by hand; Sandstone; Schleswig-Holstein, Germany; Schobuell1976; Sediments; Size fraction; Sum
    Type: Dataset
    Format: text/tab-separated-values, 122 data points
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  • 21
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    In:  Supplement to: Moore, Willard S (1981): Iron-manganese banding in Oneida Lake ferromanganese nodules. Nature, 292(5820), 233-235, https://doi.org/10.1038/292233a0
    Publication Date: 2023-08-28
    Description: Ferromanganese nodules in the deep-sea and in freshwater lakes usually accrete layers rich in manganese oxides alternating with layers rich in iron oxides. The mechanism producing these alternating layers is unknown; indeed, the mechanism producing the nodules themselves is unknown. In Oneida Lake, New York, precipitants from the lake water and the surfaces of nodules at the sediment-water interface are enriched in Mn, whereas nodules buried in lake sediments have surface layers enriched in Fe. It is hypothesized here, using field and laboratory evidence, that reduction and mobilization of Mn from the nodule surface during periods of anoxic sediment cover produce the high Fe layers observed in the nodules.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 22
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    In:  Supplement to: Farmer, H G; Dick, H (1981): Descriptions of WHOI rock dredge samples: volume 3. Woods Hole Oceanographic Institution, No. WHOI-81-48, 81-48, 324 pp, https://doi.org/10.1575/1912/1522
    Publication Date: 2023-08-28
    Description: This report is Volume 3 of Descriptions of WHOI rock dredge samples. This series represents a major effort to catalog the rock dredge samples in the WHOI Sea Floor samples collection, and to disseminate this information throughout the scientific community. Volume 3 contains sample descriptions and station data for the dredge stations from five cruises during the period September 1978 through December 1980. The material in this and subsequent volumes of rock descriptions was largely prepared onboard ship by the participating scientists. Volume 3 was printed prior to volumes 1 and 2 because of the excellent documentation of the samples represented in this volume.
    Keywords: A210706; A210707; AII70-06; AII70-07; AT-II-10706-1; AT-II-10706-10PC; AT-II-10706-22GCC; AT-II-10706-39; AT-II-10706-40; AT-II-10706-53; AT-II-10706-55; AT-II-10706-58; AT-II-10706-60; AT-II-10706-61; AT-II-10706-63; AT-II-10706-65; AT-II-10706-66; AT-II-10706-67; AT-II-10707-11; AT-II-10707-13; AT-II-10707-14; AT-II-10707-15; AT-II-10707-16; AT-II-10707-17; AT-II-10707-18; AT-II-10707-2; AT-II-10707-20; AT-II-10707-23; AT-II-10707-25; AT-II-10707-4; AT-II-10707-9; Atlantic Ocean; Atlantis II (1963); Comment; Date/Time of event; Deposit type; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Description; Dredge; DRG; Elevation of event; Event label; G2-10401-17; G2-10401-19; G2-10401-20; G2-10401-29; G2-10401-35; G2-10401-37; G2-10401-40; GC; Gilliss; Gravity corer; GS210401; KN07902; Knorr; KNR-7902-25; KNR-7902-26; KNR-7902-27; KNR-7902-28; Latitude of event; Longitude of event; Melville; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; PC; Piston corer; Position; Quantity of deposit; Sample ID; Sediment type; Size; Substrate type; VLCN05MV; VULCAN_5; VULCAN-5-18; VULCAN-5-20; VULCAN-5-21; VULCAN-5-22; VULCAN-5-23; VULCAN-5-26; VULCAN-5-27; VULCAN-5-29; VULCAN-5-30; VULCAN-5-31; VULCAN-5-32; VULCAN-5-33; VULCAN-5-34; VULCAN-5-35; VULCAN-5-36; VULCAN-5-37; VULCAN-5-39; VULCAN-5-40; VULCAN-5-41; VULCAN-5-42; VULCAN-5-43
    Type: Dataset
    Format: text/tab-separated-values, 619 data points
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  • 23
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    PANGAEA
    In:  Supplement to: Piper, David Z; Williamson, M E (1981): Mineralogy and composition of concentric layers within a manganese nodule from the North Pacific Ocean. Marine Geology, 40(3-4), 255-268, https://doi.org/10.1016/0025-3227(81)90143-2
    Publication Date: 2023-08-28
    Description: The minor-element composition of concentric layers within a single ferromanganese nodule from the eastern North Pacific exhibits strong correlations with Fe and Mn contents but appears to be independent of pronounced mineralogic variations. On the basis of these correlations, the elemental composition of individual layers apparently is controlled by the relative contribution of two sources: seawater, and interstitial water of associated sediment. In contrast, the mineralogy of the nodule, consisting of birnessite in the outer few layers and todorokite in the inner layers, is considered to be a function of nodule diagenesis.
    Keywords: Atomic absorption spectrometry (AAS); Barium; Cerium; Chromium; Cobalt; Copper; DEPTH, sediment/rock; Description; DISTANCE; Dredge; DRG; Europium; Insoluble residue; Iron; Lanthanum; Lead; Lutetium; Manganese; Neutron activation analysis; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Samarium; Sample ID; SAN_JUAN_1963; Scandium; SNJ-DH9; Spencer F. Baird; Terbium; Thorium; Wet chemistry; Ytterbium; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 399 data points
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  • 24
    Publication Date: 2023-08-28
    Description: Compositional data for coexisting manganese nodules, micronodules, sediments and pore waters from five areas in the equatorial and S.W. Pacific have been obtained. This represents the largest study of its type ever undertaken to establish the distribution of elements between the various phases within the sediment column. The composition of manganese nodules, micronodules and sediments (on a carbonate-free basis) shows marked differences between the equatorial high productivity zone and the low productivity region of the S.W. Pacific. In the case of the nodules, th is reflects an increased supply of transition elements (notably Ni, Cu and Zn) to the nodules as a result of the in situ dissolution of siliceous tests within the sediment column in the equatorial Pacific high productivity zone. Micronodules display similar, but somewhat different, compositions to those of the associated nodules in each area. Micronodule composition is therefore influenced by the same basic factors that control nodule composition, but is modified by dissolution of the micronodules in situ within the sediment column. Locally, as in the area immediately south of the Marquesas Fracture Zone, the micronodule population is contaminated by small, angular volcanic rock fragments; this leads to apparently anomalous micronodule compositions. Micronodules appear to be a transient feature in the sediment column, especially in the equatorial Pacific. Dissolution of micronodules in the sediment column therefore represents an important source of elements for the growth of manganese nodules in the equatorial Pacific. Sediment composition is markedly influenced by the carbonate content. On a carbonate-free basis, the sediments from the equatorial high productivity zone are quite distinct in composition from those in the S.W. Pacific. This reflects differences in the lithology of the sediments. In the Aitutaki Passage, the local influence of volcanoclastic material in sediment composition has been established. The major cations and anions in pore waters measured here show no major differences between equatorial and S.W. Pacific sediments. Silica is, however, higher in equatorial Pacific pore waters reflecting the dissolution of siliceous tests in these sediments.
    Keywords: Barium; BCR; Box corer (Reineck); Cobalt; Comment; Copper; Date/Time of event; Deposit type; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Elevation of event; Event label; Iron; KAL; Kasten corer; Latitude of event; Longitude of event; Manganese; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Sample ID; Sediment type; SO06; SO06_10KG; SO06_110KG; SO06_114KG; SO06_138KG; SO06_139KAL; SO06_162KG; SO06_179KG; SO06_184KG; SO06_198KG; SO06_210KG; SO06_214KG; SO06_215KG; SO06_218KAL; SO06_233KG; SO06_235KG; SO06_28KG; SO06_47KG; SO06_51KG; SO06_73KG; SO06_96KG; SO6/1-C-Loc2-10; SO6/1-C-Loc6-28; SO6/1-F-Loc12-73; SO6/1-F-Loc15-96; SO6/1-F-Loc9-47; SO6/1-F-Loc9-51; SO6/1-G-Loc16-110; SO6/1-G-Loc17-114; SO6/1-G-Loc20-138; SO6/1-G-Loc20-139; SO6/2-K-Loc24-162; SO6/2-K-Loc26-179; SO6/2-K-Loc27-184; SO6/2-K-Loc28-198; SO6/2-K-Loc31-210; SO6/2-K-Loc32-214; SO6/2-K-Loc32-215; SO6/2-K-Loc32-218; SO6/2-K-Loc35-233; SO6/2-K-Loc36-235; Sonne; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 419 data points
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  • 25
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    In:  Supplement to: Hariya, Yu; Tsutsumi, Makoto (1981): Hydrogen-isotopic composition of some hydrous manganese minerals. Chemical Geology, 34(1-2), 43-52, https://doi.org/10.1016/0009-2541(81)90070-X
    Publication Date: 2023-08-28
    Description: Initial data on the hydrogen-isotopic compositions in hydrous Mn minerals from various occurrences fall in a wide range from -298 to -84 per mil, relative to SMOW. DeltaD-values of todorokite and cryptomelane from Tertiary deposits show -89 and -150 per mil. 10 Angström-manganite and Delta-MnO2 from deep-sea nodules have relatively restricted DeltaD-values ranging from -96 to -84 per mil. The DeltaD-values for manganese bog ores from recent hot springs show almost -105 per mil. It is recognized that the isotopic values obtained for the deep-sea nodules and recent bog ores are slightly different ranged. Manganite and groutite are unique in their hydrogen-isotopic compositions, having the most depleted DeltaD-values ranging from -298 to -236 per mil. MnO(OH) minerals are more deuterium-depleted hydrous minerals than any other hydrothermal minerals from various ore deposits. Hydrogen-isotope fractionation factors between manganite and water were experimentally determined to be 0.7894, 0.7958 and 0.8078 at 150°, 200° and 250°C, respectively. the present experimental results indicate that if manganites were formed at temperatures below 250°C, under isotopic equilibrium conditions, most of the manganite mineralization in the Tertiary manganese deposits must have precipitated from meteoric hydrothermal solutions.
    Keywords: Core; CORE; Deposit type; DEPTH, sediment/rock; Dredge, box; DRG_B; Event label; FFGR; Free-fall grab; GH77-1; GH77-1-D212; GH77-1-FG40-1; GH77-1-G384; Hakuho-Maru; Hakurei-Maru (1974); Identification; Isotope ratio mass spectrometry; KH-73-4; KH73-4-2; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; O70; Ocean 70 grab; Pacific Ocean; δ Deuterium
    Type: Dataset
    Format: text/tab-separated-values, 12 data points
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  • 26
    Publication Date: 2023-08-28
    Description: This report is Volume 1 in the series of reports entitled "Descriptions of W.H.O.I. rock dredge samples". This series represents a major effort to catalog and prepare initial descriptions for all rock dredge samples in the W.H.O.I. Sea Floor Samples Collection, and to distribute this information throughout the scientific community. Volume 1 contains sample descriptions from approximately 382 dredging stations executed during the period 1960 through 1977. It also represents a digitized listing of all dredge station data for the entire W.H.O.I. Dredge Collection through 1980. This data is sorted by Marsden Square and can serve as a regional index for all rock descriptions included in Volumes 1-3.
    Keywords: A201102; A204201; A207301; A207702; A209306; A209603; AII-04-2RD; AII-11-10RD; AII-11-11RD; AII-11-8RD; AII-73-12RD; AII-73-2RD; AII-73-8RD; AII-73-9RD; AII-77-10RD; AII-77-11RD; AII-77-12RD; AII-77-13RD; AII-77-3RD; AII-77-4RD; AII-77-6RD; AII-77-7RD; AII-77-8RD; AII-77-9RD; AII-93-11RD; AII-93-13RD; AII-93-16RD; AII-96-10RD; AII-96-14RD; AII-96-15RD; AII-96-16RD; AII-96-17RD; AII-96-1RD; AII-96-2RD; AII-96-3RD; AII-96-4RD; AII-96-6RD; AII-96-7RD; AII-96-8RD; AII-96-9RD; AT26601; AT266-03; AT28001; AT280-06; AT29600; AT296-01; AT296-03; Atlantic Ocean; Atlantis (1931); Atlantis II (1963); Caribbean Sea; CH00703; CH00709; CH00906; CH00907; CH01302; CH02101; CH03401; CH03601; CH04301; CH04601; CH05201; CH05801; CH07501; CH07502; CH08207; CH08208; CH10006; CH-100-5RD; CH11504; CH11506; CH115-3RD; CH115-9RD; CH13-7RD; CH21-2RD; CH21-6RD; CH35-3RD; CH35-4RD; CH36-5RD; CH36-6RD; CH43-16RD; CH43-23RD; CH43-33RD; CH43-40RD; CH43-41RD; CH43-7RD; CH46-1RD; CH46-6RD; CH46-7RD; CH52-3RD; CH52-6RD; CH58-9RD; CH7-28RD; CH-75-1RD; CH-75-2RD; CH-75-3RD; CH-75-7RD; CH-75-8RD; CH7-6RD; CH-82-2RD; CH-82-6RD; CH9-2RD; CH9-5RD; Chain; Comment; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Elevation of event; Event label; GO07301; GOS73-7RD; Gosnold; Identification; Indian Ocean; KN04202; KN04203; KN04204; KN04205; KN05402; KN05403; Knorr; KNR-42-11RD; KNR-42-12RD; KNR-42-17RD; KNR-42-18RD; KNR-42-20RD; KNR-42-21RD; KNR-42-22RD; KNR-42-24RD; KNR-42-25RD; KNR-42-26RD; KNR-42-27RD; KNR-42-29RD; KNR-42-30RD; KNR-42-31RD; KNR-42-33RD; KNR-42-34RD; KNR-42-36RD; KNR-42-37RD; KNR-42-39RD; KNR-42-3RD; KNR-42-40RD; KNR-42-41RD; KNR-42-42RD; KNR-42-45RD; KNR-42-4RD; KNR-42-8RD; KNR-42-9RD; KNR-54-20RD; KNR-54-22RD; KNR-54-38RD; KNR-54-39RD; KNR-54-42RD; KNR-54-45RD; KNR-54-4RD; KNR-54-9RD; Latitude of event; Longitude of event; Mediterranean Sea; Method/Device of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Optional event label; Position; Quantity of deposit; Sediment type; Size; Southern Ocean; Sta 100; Sta 108; Sta 10 - Dr 2; Sta 110; Sta 112-Dr RD40; Sta 113-Dr RD41; Sta 117; Sta 121; Sta 122; Sta 129; Sta 12 - Dr 11; Sta 12-Dr 4; Sta 130; Sta 131; Sta 137; Sta 145; Sta 146; Sta 146-Dr 9; Sta 14 - Dr 13; Sta 15; Sta 156-Dr 31; Sta 161-Dr 33; Sta 162-Dr 34; Sta 166-Dr 36; Sta 168-Dr 37; Sta 171-Dr 39; Sta 174-Dr 40; Sta 177-Dr 41; Sta 178-Dr 42; Sta 17-Dr 5; Sta 18; Sta 182-Dr 45; Sta 18 - Dr 16; Sta 19 - Dr 2; Sta 2; Sta 21-Dr 3; Sta 23 - Dr 3; Sta 24 - Dr 8; Sta 24-Dr 9; Sta 25-Dr 3; Sta 25-Dr 7; Sta 26 - Dr 4; Sta 26-Dr 8; Sta 28-Dr 4; Sta 30 - Dr 8; Sta 32 - Dr 10; Sta 33 - Dr 11; Sta 34-Dr 2; Sta 37 - Dr 6; Sta 38-Dr 3; Sta 38 - Dr 7; Sta 38 - Dr 9; Sta 3-Dr 1; Sta 42-Dr 20; Sta 44-Dr 22; Sta 44-Dr RD16; Sta 45 - Dr 8; Sta 47 - Dr 12; Sta 48-Dr 6; Sta 48 - Dr 9; Sta 5; Sta 51-Dr 8; Sta 52 - Dr 10; Sta 58 - Dr 11; Sta 5-Dr 2; Sta 60; Sta 62 - Dr 12; Sta 63; Sta 63 - Dr 13; Sta 68; Sta 73; Sta 74; Sta 77-Dr 11; Sta 86-Dr 12; Sta 88-Dr RD33; Sta 9; Sta 91; Sta 98; Sta D-2-Dr 2; Sta D-3-Dr 3; Sta D-4-Dr 4; Sta D-5-Dr 6; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 1091 data points
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  • 27
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    In:  Supplement to: Cyamex Scientific Team; Francheteau, Jean; Needham, H D; Choukroune, P; Juteau, Thierry; Séguret, Marie J M; Ballard, R D; Fox, P J; Normark, William R; Carranza, A; Cordoba, D; Guerrero, Gerardo; Rangin, Claude (1981): First manned submersible dives on the East Pacific Rise at 21�N (project RITA): General results. Marine Geophysical Research, 4(4), 345-379, https://doi.org/10.1007/BF00286034
    Publication Date: 2023-08-28
    Description: A submersible study has been conducted in February - March 1978 at the axis of the East Pacific Rise near 21°N. The expedition CYAMEX, the first submersible program to be conducted on the East Pacific Rise, is part of the French-American-Mexican project RITA (Rivera - Tamayo), a 3-year study devoted to detailed geological and geophysical investigations of the East Pacific Rise Crest. On the basis of the 15 dives made by CYANA in the axial area of the Rise, a morphological and tectonic zonation can be established for this moderately-fast spreading center. A narrow, 0.6 to 1.2 km wide zone of extrusion (zone 1), dominated by young lava flows, is flanked by a highly fissured and faulted zone of extension (zone 2) with a width of 1 to 2 km. Further out, zone 3 is dominated by outward tilted blocks bounded by inward-facing fault scarps. Active or recent faults extend up to 12 km from the axis of extrusion of the East Pacific Rise. This represents the first determination from direct field evidence of the width of active tectonism associated with an accreting plate boundary. Massive sulfide deposits, made principally of zinc, copper and iron, were found close to the axis of the Rise. Other signs of the intense hydrothermal activity included the discovery of benthic fauna of giant size similar to that found at the axis of the Galapagos Rift. We emphasize the cyclic character of the volcanicity. The main characteristics of the geology of this segment of the East Pacific Rise can be explained by the thermal structure at depth below this moderately-fast spreading center. The geological observations are compatible with the existence of a shallow magma reservoir centered at the axis of the Rise with a half-width of the order of 10 km.
    Keywords: CY78-16DF; CY78-17V; CY78-18V; CYAMEX; Cyana (Submersible); Deposit type; DEPTH, sediment/rock; Description; East Pacific Rise; Event label; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; OBSE; Observation; Position; Quantity of deposit; Sediment sample; Sediment type; SES; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 21 data points
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  • 28
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    In:  Supplement to: Zakariadze, Guram S; Usher, John L; Theyer, Fritz; Sartori, Renzo; Rodolfo, Kelvin S; Mattey, David P; Martini, Erlend; Keating, Barbara; Ishii, Teruaki; Heiman, M E; Chotin, Pierre; Brassell, Simon C; Balshaw, K M; Kroenke, Loren W; Scott, R (1981): Initial Reports of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, LIX, 1020 pp, https://doi.org/10.2973/dsdp.proc.59.1981
    Publication Date: 2023-08-28
    Description: Of numerous island-arc systems in the western Pacific, the Mariana arc-trench system and the basins and submerged ridges lying west of them in the Philippine Sea seemed to be best suited to answer questions regarding arc-trench and back-arc basin formation. Three years of planning by the JOIDES Active Margin Panel, Ocean Crust Panel, and Planning Committee resulted in a proposed transect of drill sites aligned more or less along the 18th parallel. This South Philippine Sea transect was designed to investigate each major basin and ridge between the central part of the West Philippine Sea and the Mariana Trench and the Pacific Ocean plate immediately to the east.
    Keywords: 59-447; 59-447A; 59-448; 59-449; 59-450; 59-451; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Elevation of event; Event label; Glomar Challenger; Identification; Latitude of event; Leg59; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/BASIN; North Pacific/Philippine Sea/BASIN; North Pacific/Philippine Sea/RIDGE; North Pacific/RIDGE; Position; Quantity of deposit; Sample code/label; Sediment type; Size; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 366 data points
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  • 29
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    In:  Supplement to: Windom, Ken; Vallier, Tracy L; Tokuyama, Hidekazu; Thierstein, Hans R; Thiede, Jörn; Steiner, Maureen B; Sliter, William V; Shcheka, S A; Seifert, Karl E; Sayer, William O; Riech, Volkher; Rea, David K; Premoli Silva, Isabella; Moberly, Ralph; Koporulin, V I; Jenkyns, Hugh C; Fujii, Naoyuki; de Wever, Patrick; Cepek, Pavel; Boyce, Robert E; Batiza, Rodey; Larson, Roger L; Schlanger, Seymour O (1981): Initial Reports of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, LXI, 885 pp, https://doi.org/10.2973/dsdp.proc.61.1981
    Publication Date: 2023-08-28
    Description: The goal of Site 462 was to study the paleontologic, sedimentary, petrologic, tectonic, and magnetic histories of that area through Recent to Late Jurassic time by drilling a deep re-entry site into the Nauru Basin west of the Ralik Chain of the Marshall Islands. This area formed at a fast-spreading Pacific Plate boundary 145 to 155 m.y. ago, in the Late Jurassic. Cores from this area allow to better understand the biostratigraphic evolution and sedimentary processes in a Mesozoic open-ocean environment, the petrologic nature of fast-spreading oceanic crust, the tectonic history of the Late Jurassic Pacific Plate, and the nature of the Jurassic magnetic quiet zone.
    Keywords: 61-462; 61-462A; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Leg61; 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, 71 data points
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  • 30
    Publication Date: 2023-08-28
    Description: The four sites drilled during Leg 62 were needed to establish better regional coverage of the North Pacific Ocean. Although paleoenvironments were to be stressed on Leg 62, studies of igneous rocks from acoustic basement were planned, to determine ages, petrogenesis, alteration effects, rock magnetism, and Paleomagnetism of old parts of the Pacific crust. These studies were emphasized in order to establish the early history of oceanic plateaus and whether they are the result of midocean-ridge or intraplate volcanism.
    Keywords: 62-463; 62-464; 62-465A; 62-466; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Leg62; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/CONT RISE; North Pacific/SEAMOUNT; Position; Quantity of deposit; Sample code/label; Sediment type; Size; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 157 data points
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  • 31
    Publication Date: 2023-08-28
    Description: A primary objective of Leg 63 was to investigate the fluctuations of this eastern boundary current along a north-south transect off the Gulf of California. This information would aid in biostratigraphically correlating open-ocean planktonic zones with local California zonations. Spanning the last 30 m.y., the complicated tectonic history of the continental margin off California and Baja California comprises changes from a subduction zone to a transform boundary and then to an inactive margin. A second objective of Leg 63 was to define and clarify this history using information on sedimentation, unconformities, basement ages, and paleomagnetic reconstructions gained from drilling, in conjunction with geophysical data and pre-existing bottom samples.
    Keywords: 63-468B; 63-469; 63-470; 63-470A; 63-471; 63-472; Comment; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Leg63; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/ABYSSAL FLOOR; North Pacific/ESCARPMENT; North Pacific/FAN; North Pacific/PLATEAU; Position; Quantity of deposit; Sample code/label; Sediment type; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 82 data points
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  • 32
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    In:  Supplement to: Burnett, B R; Nealson, K H (1981): Organic films and microorganisms associated with manganese nodules. Deep Sea Research Part A. Oceanographic Research Papers, 28(6), 637-645, https://doi.org/10.1016/0198-0149(81)90124-2
    Publication Date: 2023-08-28
    Description: Undamaged deep-sea manganese nodules were retrieved from a box core from the central North Pacific and quickly preserved in formaldehyde solution. Light and scanning electron microscope studies of the nodule surface reveal the presence of a variety of fragile filamentous and coccoid bacterial morphotypes, associated with an organic film that covers the botryoid surface.
    Keywords: Argo; BC; Box corer; CLIMAX_II; Deposit type; DEPTH, sediment/rock; Description; H-233; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Position; Quantity of deposit; Size; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 6 data points
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  • 33
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    In:  Supplement to: Christie, David M; Sinton, John M (1981): Evolution of abyssal lavas along propagating segments of the Galapagos spreading center. Earth and Planetary Science Letters, 56, 321-335, https://doi.org/10.1016/0012-821X(81)90137-0
    Publication Date: 2023-08-28
    Description: The unusual petrological diversity of abyssal lavas erupted along some segments of the Galapagos spreading center is a direct consequence of the propagation (elongation) of these segments into older oceanic crust. With increasing distance behind propagating rift tips, relatively unfractionated MORB erupted close to the tips are joined first by FeTi basalts (bimodal assemblage) and then by a wide range of basaltic and siliceous lavas. Further behind propagating rift tips, this broad range diminishes again, approaching the narrow compositional range of adjacent normal ridge segments. These compositional variations reflect the evolution of the subaxial magmatic system beneath the newly forming spreading center as it propagates through a pre-existing plate. We envisage this evolution as proceeding from small, isolated, ephemeral magma chambers through increasing numbers of larger, increasingly interconnected chambers to the steady-state buffered system of a normal ridge. Throughout this evolution, magma supply rates gradually increase and cooling rates of crustal magma bodies decrease. High degrees of crystal fractionation are favored only when a delicate balance between cooling rate and resupply rate of primitive magma is achieved. At other propagating and non-propagating ridge-transform intersections the degree to which the balance is achieved and the length of ridge over which it evolves control the distribution of fractionated lavas. These effects may be evaluated provided a number of tectonic variables including transform length, spreading and propagation rates are taken into account.
    Keywords: Deposit type; DEPTH, sediment/rock; Description; Dredge, rock; DRG_R; Elevation of event; Event label; Identification; Kana Keoki; KK781230; KK78-12-RD10; KK78-12-RD12; KK78-12-RD12B; KK78-12-RD14; KK78-12-RD16; KK78-12-RD17; KK78-12-RD2; KK78-12-RD20; KK78-12-RD21; KK78-12-RD24; KK78-12-RD25; KK78-12-RD26; KK78-12-RD27; KK78-12-RD29; KK78-12-RD32; KK78-12-RD4; Latitude of event; Longitude of event; Method/Device of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Position; Quantity of deposit; Sediment type; Size; Station 107; Station 109; Station 8; Station 80; Station 83; Station 85; Station 86; Station 88; Station 89; Station 91; Station 93; Station 94; Station 95; Station 96; Substrate type; Uniform resource locator/link to image; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 138 data points
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  • 34
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    In:  Supplement to: Stanley, Daniel Jean; Taylor, P T; Sheng, Harrison; Stuckenrath, Robert Jr (1981): Sohm Abyssal Plain: Evaluating Proximal Sediment Provenance. Smithsonian Contributions to the Marine Sciences, 11, 1-48, https://doi.org/10.5479/si.01960768.11
    Publication Date: 2023-08-28
    Description: The southernmost part of the Sohm Abyssal Plain in the Northwest Atlantic Basin is geographically distal with respect to the major source of Quaternary terrigenous material transported from the Canadian Maritime Provinces. An assessment of the proportion of more locally introduced sediment relative to that derived from distal sources is based largely on size and compositional analyses of Quaternary piston core samples. These data are supplemented by radiocarbon dating of selected core samples, bottom photographs, conductivity-temperature-depth profiles, and seismic records. The premises of the study are that (a) locally derived sediment should be most abundant near high-relief bathymetric features such as seamounts and abyssal hills, and (b) such material should contain enhanced proportions of reworked volcanic debris and alteration products. Core analyses reveal that the amounts of these are directly related to proximity of volcanic ocean-bottom features, and that a significant, although not total, amount of such volcanic materials recovered from cores are derived from submarine weathering of basalt. Associated with this assemblage are nannofossils, dating from the Quaternary to the Upper Cretaceous, reworked from older strata. This increased proportion of volcanic and related products and reworked faunas near seamounts and basement rises strongly implies that such topographic features continue to serve as major source terrains. Locally derived volcanic materials, however, are usually disseminated and masked on the Sohm Abyssal Plain, particularly in sectors receiving large amounts of terrigenous turbidites and biogenic suspensates, and/or undergoing reworking by bottom currents. We propose that the volcanic fraction can serve as a useful index, or "yardstick," to interpret the role of locally derived material in abyssal plain sedimentation. A sedimentation model is developed to illustrate the premise that as access to land-derived sources diminishes, the proportion of terrigenous components is reduced while pelagic and volcanic fractions are enhanced. Thus, sediment accumulating in abyssal plains almost totally isolated from terrigenous sources would comprise significant amounts of pelagic (including wind-blown) and volcanic components.
    Keywords: AT153; AT153-149CC; Atlantic Ocean; Atlantis (1931); Comment; Deposit type; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Description; Elevation of event; Event label; File name; Identification; Latitude of event; Longitude of event; Method/Device of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; PC; Photo/Video; Piston corer; Position; PV; Quantity of deposit; Sediment type; Substrate type; Uniform resource locator/link to image; V22; V22-231; V26; V26-6; V26-9; Vema; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 87 data points
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  • 35
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    PANGAEA
    In:  Supplement to: Bischoff, James L; Piper, David Z; Leong, Kam (1981): The aluminosilicate fraction of North Pacific manganese nodules. Geochimica et Cosmochimica Acta, 45(11), 2047-2063, https://doi.org/10.1016/0016-7037(81)90059-4
    Publication Date: 2023-08-28
    Description: Nine nodules collected from throughout the deep North Pacific were analyzed for their mineralogy and major-element composition before and after leaching with Chester-Hughes solution. Data indicate that the mineral phillipsite accounts for the major part (〉 75%) of the aluminosilicate fraction of all nodules. It is suggested that formation of phillipsite takes place on growing nodule surfaces coupled with the oxidation of absorbed manganous ion. All the nodules could be described as ternary mixtures of amorphous iron fraction (Fe-Ti-P), manganese oxide fraction (Mn-Mg Cu-Ni), and phillipsite fraction (Al-Si-K-Na), these fractions accounting for 96% of the variability of the chemical composition.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 36
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    In:  Supplement to: Grill, E V; Chase, R L; MacDonald, Richard Drummond; Murray, John W (1981): A hydrothermal deposit from explorer ridge in the northeast Pacific Ocean. Earth and Planetary Science Letters, 52(1), 142-150, https://doi.org/10.1016/0012-821X(81)90216-8
    Publication Date: 2023-08-28
    Description: Crusts composed of nontronite and ferromanganese oxides were recovered from Explorer Ridge, a spreading ridge segment in the northeastern Pacific Ocean located off the west coast of Canada. The chemical and mineralogical composition of the crusts closely resembles that of the mound-like hydrothermal deposits recently discovered at the FAMOUS site on the Mid-Atlantic Ridge and on the Galapagos spreading centre. Compositional anomalies suggest that the crusts are precipitates of hydrothermal vent solutions which were ejected discontinuously and subsequently mixed with seawater.
    Keywords: Dredge; DRG; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North-East Pacific Ocean; PZ69-11
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 37
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    In:  Supplement to: Février, M (1981): Hydrothermalisme et minéralisations sur la dorsale Est-Pacifique à 21° N. Ph. D. Dissertation, Université de Bretagne Occidentale, Brest, France, pdf 11 MB, 270 pp, https://archimer.ifremer.fr/doc/00034/14498/
    Publication Date: 2023-08-28
    Description: Submersible exploration on the eastern Pacific Ridge near 21 ° N has revealed an active hydrothermal system. It is manifested by the emission in the marine environment of hot and Highly mineralized fluids (370 ° C maximum). These fluids precipitate on contact with seawater and deposits of massive sulphides are built at the outlet of their sources. The mineralogical and geochemical study of the products associated with the emissions of hot fluids provides an initial evaluation of this type of deposit and leads to a comparison between the hydrothermalism responsible for the formation of sulphides and the hydrothermalism responsible for the formation of metal rich crusts formed of iron smectites and manganese oxides. This study is carried out with conventional mineralogical and geochemical investigations (optical and electronic microscopy, X-ray diffraction, X-ray fluorescence spectrometry, electron microprobe, neutron activation and mass spectrometry).
    Keywords: CY-74-26-14; CY-78-06-11; CY-78-12-41; CYAMEX; Cyana (Submersible); East Pacific Rise; FAMOUS 06-74; FAMOUS74; Grab; GRAB; GRAB_subCyana; Grab, on Cyana [Submersible]; Le Noroit; Mid Atlantic Ridge; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 38
    Publication Date: 2023-08-28
    Keywords: 9-77B; Aluminium; Atomic absorption spectrometry (AAS), Perkin-Elmer; Calcium carbonate; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Iron; Iron, fractionated; Leg9; Magnesium; Manganese; Manganese, fractionated; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/HILL; Phosphorus; Sample code/label; Silicon; X-ray fluorescence (XRF)
    Type: Dataset
    Format: text/tab-separated-values, 70 data points
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  • 39
    Publication Date: 2023-08-28
    Keywords: 9-81; Aluminium; Atomic absorption spectrometry (AAS), Perkin-Elmer; Calcium carbonate; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Iron; Iron, fractionated; Leg9; Magnesium; Manganese; Manganese, fractionated; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/HILL; Sample code/label; Silicon; X-ray fluorescence (XRF)
    Type: Dataset
    Format: text/tab-separated-values, 22 data points
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  • 40
    Publication Date: 2023-08-28
    Description: The sulfide deposit at Site 471 occurs between overlying pelagic sediment and underlying basalt. The deposit is vertically zoned and consists, from top to bottom, of the following mineral assemblages: (1) pyrite, chalcopyrite, and Zn-sulfide in chert and calcite gangue (~ 35 cm thick); (2) a 5-cm-thick metalliferous sediment layer and (3) a 4-cm-thick chert layer. The calcite gangue appears at a later stage than chert gangue in the sequence of deposition, also filling in voids and fractures. The manganese content of calcite is particularly high and varies systematically, reaching a maximum at the top of the massive sulfide portion of the deposit.
    Keywords: 63-471; Aluminium oxide; Aluminium oxide, standard deviation; Calcium oxide; Calcium oxide, standard deviation; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Electron microprobe (EMP); Glomar Challenger; Iron oxide, FeO; Iron oxide, FeO, standard deviation; Leg63; Magnesium oxide; Magnesium oxide, standard deviation; Manganese oxide; Manganese oxide, standard deviation; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/FAN; Potassium oxide; Potassium oxide, standard deviation; Replicates; Sample code/label; Silicon dioxide; Sodium oxide; Sodium oxide, standard deviation; Standard deviation; Titanium dioxide; Total
    Type: Dataset
    Format: text/tab-separated-values, 102 data points
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  • 41
    Publication Date: 2023-08-28
    Keywords: Aluminium oxide; Atomic absorption spectrometry (AAS); Barium; Calcium oxide; Chromium; Cobalt; Copper; Deposit type; DEPTH, sediment/rock; Description; DISTANCE; Distance, maximum; Distance, minimum; Dredge; DRG; Identification; Iron oxide, Fe2O3; Lead; Magnesium oxide; Manganese oxide; Molybdenum; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North-East Pacific Ocean; Opal-CT; Potassium oxide; PZ69-11; Silicon dioxide; Sodium oxide; Titanium dioxide; Vanadium; Water in rock; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 145 data points
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  • 42
    Publication Date: 2023-08-28
    Keywords: Aluminium oxide; Atomic absorption spectrometry (AAS); BC; Box corer; Calcium oxide; Cobalt oxide; Copper(II) oxide; Date/Time of event; Deposit type; DEPTH, sediment/rock; Description; DOMES Site A, Pacific Ocean; DOMES Site B, Pacific Ocean; DOMES Site C, Pacific Ocean; Dredge, bucket; DRG_BU; Elevation of event; Event label; Iron oxide, Fe2O3; Latitude of event; Longitude of event; Magnesium oxide; Manganese oxide; Method/Device of event; Nickel oxide; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Oceanographer; Pacific Ocean; Potassium oxide; RP-8-OC-75; RP8OC7503; RP8OC75-47-12; RP8OC75-54-47; RP8OC76; RP-8-OC-76; RP8OC76-14-20; Sample ID; Seascope Expedition; Silicon dioxide; Sodium oxide; SS72/2; SS72/3; SS72/5; SS72/6; SS72-148DB; SS72-149DB; SS72-152DB; SS72-24DB; SS72-52DB; SS72-96DB; Titanium dioxide; Zinc oxide
    Type: Dataset
    Format: text/tab-separated-values, 144 data points
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  • 43
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    PANGAEA
    In:  Supplement to: Rea, David K; Janecek, Thomas R (1981): Mass-accumulation rates of the non-authigenic inorganic crystalline (Eolian) component of deep-sea sediments from the western Mid-Pacific Mountains, Deep Sea Drilling Project Site 463. In: Thiede, J; Vallier, TL; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 62, 653-659, https://doi.org/10.2973/dsdp.proc.62.125.1981
    Publication Date: 2023-10-19
    Description: Elevated regions in the central parts of ocean basins are excellent for study of accumulation of eolian material. The mass-accumulation rates of this sediment component appear to reflect changes in the influx of volcanic materials through the Early Cretaceous to Recent history of Deep Sea Drilling Project Site 463, on the Mid-Pacific Mountains. Four distinct episodes of eolian accumulation occurred during the Cretaceous: two periods of moderate accumulation, averaging about 0.2 to 0.3 g/cm**2/10**3 yr, 67 to 70.5 m.y. ago and 91 to 108 m.y. ago; a period of low accumulation, approximately 0.03 g/cm**2/10**3 yr, 70.5 to 90 m.y. ago; and a period of high accumulation, about 0.9 g/cm**2/10**3 yr, 109 to 117 m.y. ago (bottom of the hole). Much of the Cenozoic section is missing from Site 463. Upper Miocene to Recent sediments record an upward increase in accumulation rates, from less than 0.01 to about 0.044 g/cm**2/10**3 yr. The late Pliocene-Pleistocene peak may reflect the change to glacial-wind regimes, as well as an increase in volcanic source materials.
    Keywords: 62-463; Accumulation rate, dust; Accumulation rate, mass; AGE; Calculated, see reference(s); Comment; Deep Sea Drilling Project; Density, dry bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Dust, aeolian; Glomar Challenger; Leg62; North Pacific/SEAMOUNT; Porosity; Sample code/label; Sedimentation rate; see reference(s)
    Type: Dataset
    Format: text/tab-separated-values, 707 data points
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  • 44
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    PANGAEA
    In:  Supplement to: Rea, David K; Janecek, Thomas R (1981): Late Cretaceous history of eolian deposition in the Mid-Pacific Mountains, central North Pacific Ocean. Palaeogeography, Palaeoclimatology, Palaeoecology, 36(1-2), 55-67, https://doi.org/10.1016/0031-0182(81)90048-1
    Publication Date: 2023-10-19
    Description: Eolian dust preserved in deep-sea sediment can provide a direct historical record of global atmospheric circulation. Data from a reasonably complete Upper Cretaceous section of pelagic sediments recovered at DSDP Site 463 in the central North Pacific provides a good record of eolian activity during the time period between about 112 and 66 m.y. ago. We have isolated the eolian component from these sediments, determined its mass accumulation rate and combined these data with the mineralogy of the inorganic fraction determined by others to construct a record of eolian deposition. Volcanic input is significant during Aptian-Albian and Maastrichtian times, otherwise continentally derived minerals dominate. Mass accumulation rates of the continental eolian component range from over 500 mg/cm**2/kyr during the late Albian to a low of 5 mg/cm**2/kyr during Coniacian time. (For comparison, the upper Miocene to Pleistocene rate averages about 20 mg/cm**2/kyr). The temporal pattern of Late Cretaceous eolian accumulation of Site 463 generally matches known changes in sea level, suggesting that source availability is the dominant control of eolian sedimentation during that time.
    Keywords: 62-463; Accumulation rate, dust; Accumulation rate, mass; AGE; Calculated; Calculated from weight/volume; Deep Sea Drilling Project; Density, dry bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Dust, aeolian; Glomar Challenger; Leg62; North Pacific/SEAMOUNT; Sedimentation rate
    Type: Dataset
    Format: text/tab-separated-values, 300 data points
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  • 45
    Publication Date: 2023-07-10
    Keywords: Atlantic Ocean; Atlantische Kuppenfahrten 1967/1-3; BC; BCR; Box corer; Box corer (Reineck); Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; East Atlantic; Elevation of event; Event label; FGGE-Equator 79 - First GARP Global Experiment; GC; GIK12309-2; GIK12310-4; GIK12326-4; GIK12328-4; GIK12329-4; GIK12329-6; GIK12330-1; GIK12331-1; GIK12336-1; GIK12337-4; GIK12344-3; GIK12345-5; GIK12347-1; GIK12379-3; GIK12392-1; GIK13207-3; GIK13209-2; GIK13211-3; GIK13218-1; GIK13219-1; GIK13236-1; GIK13238-1; GIK13255-2; GIK13289-1; GIK13291-1; GIK13312-1; GIK13530-1; GIK13533-3; GIK13534-1; Grain size, mean radius; Gravity corer; Gravity corer (Kiel type); KAL; Kasten corer; KOL; Latitude of event; Longitude of event; M12392-1; M25; M30; M30_183; M30_185; M30_208; M30_209; M30_230; M51; M8; M8_017-1; M8/17-1; Meteor (1964); PC; Piston corer; Piston corer (Kiel type); Size fraction 〉 0.006 mm, silt; SL; South Atlantic Ocean; SPC; Sphincter corer; V10; V10-83; V10-84; V10-90; V16; V16-25; V17; V17-159; V19; V19-304; V22; V22-195; V22-196; V22-213; V22-25; V23; V23-100; V23-106; V23-93; V23-99; V25; V25-44; V27; V27-166; V27-167; V27-178; V27-253; V27-260; V27-262; V29; V29-169; V29-170; V30; V30-229; V30-233; V30-243; V30-49; V30-52; V30-56; V30-58; V30-74; V31; V31-2; V32; V32-18; V32-21TW; V32-24TW; V32-27TW; V32-30; V32-31TW; V32-33; V32-35TW; V32-37; V32-40TW; V32-52TW; V32-63TW; V32-9; VA-10/3; Valdivia (1961); van Veen Grab; Vema; VGRAB; Westafrika 1973
    Type: Dataset
    Format: text/tab-separated-values, 340 data points
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  • 46
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    In:  Supplement to: Ballog, Robert A; Malloy, Raymond E (1981): Neogene palynology from the southern California Continental borderland, Site 467, Deep Sea Drilling Project Leg 63. In: Yeats, RS; Haq, BU; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 63, 565-576, https://doi.org/10.2973/dsdp.proc.63.116.1981
    Publication Date: 2023-11-01
    Description: Neogene palynofloras of southern California have been all too infrequently studied. Previous investigations of Pacific Coast sediments have been largely restricted to Pacific Northwest locales. Some important studies include those by Gray (1964), Wolfe, Hopkins, and Leopold (1966), Wolfe and Leopold (1967), Hopkins (1968), Piel (1969, 1977), Ballog, Sparks, and Waloweek (1972), and Musich (1973). The only published study of southern California materials is that of Heusser (1978) on Holocene sediments of the Santa Barbara basin. Most of these studies are concerned with the microflora from a particular formation; thus they have limited stratigraphic value and in most cases involve nonmarine to marginal marine rocks where no planktonic zonation was available. Musich's (1973) study was the first attempt at tying pollen assemblages to a planktonic zonation over an extended stratigraphic interval (Miocene to Pleistocene).Its location in the southern California Borderland and the sedimentary sections sampled make Leg 63 extremely valuable in deciphering the palynologic history of the Pacific Coast Neogene. Site 467 was chosen for our initial detailed study, because the relatively slow sedimentation rate provides an almost complete Neogene sequence of mainly terrigenous sediments and reliable planktonic age control is available.The goals of this study were to: (1) establish a reference section of Neogene palynomorph assemblages; (2) develop biostratigraphic criteria for use in correlation with other localities; (3) correlate the palynologic assemblages with the planktonic zonations; and (4) study the paleoenvironmental history in the southern California Neogene.
    Keywords: 63-467; Acer; Acritarch spp.; Alnus; Ambrosia; Anacardiaceae; Artemisia; Asteraceae; Betula; Bombacaceae; Cannosphaeropsis sp.; Carya; Caryophyllaceae; Castanea; Chenopodiaceae; Cleistosphaeridium aciculare; Cleistosphaeridium disjunctum; Cleistosphaeridium sp.; Compositae; Deep Sea Drilling Project; Dinoflagellate spp.; Disaccites spp.; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elaeagnaceae; Ephedra; Epoch; Ericaceae; Eriogonum; Fagus; Foraminifera; Glomar Challenger; Gramineae; Group size; Hystrichokolpoma sp.; Ilex; Juglans; Leg63; Lejeunia; Leptodinium; Leptodinium patulum; Liliacidites; Liquid amber; Malvaceae; Myrica; Nannofossil zone; Nematosphaeropsis; North Pacific/GAP; Onagraceae; Operculodinium centrocarpum; Operculodinium sp.; Pinus; Polemoniaceae; Polygonum persicaria; Polypodium; Polyporites; Potamogeton; Pseudotsuga; Pterocarya; Quercus; Rhamnaceae; Salix; Sample code/label; Selaginella; Sigmapollis hispidus; Sigmopollis pisilatus; Sphagnum; Spiniferites; Spiniferites ramosus; Spores; Tectatodinium sp.; Tricolpites sp.; Tricolporites sp.; Triporites sp.; Tsuga; Tuberculodinium vancampoae; Tytthodiscus sp.; Ulmus
    Type: Dataset
    Format: text/tab-separated-values, 9842 data points
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  • 47
    Publication Date: 2023-08-28
    Description: The cores and dredges described at this site were taken on the SAFARI II cruise from 21 July until 1 September 1981 by the MusÈum National d'Histoire Naturelle from the R/V Marion Dufresne. A total of 65 cores, dredges and camera stations were recovered and are available at MNHN for sampling and study.
    Keywords: BL810001; BL810002; BL810003; Comment; CP810016; CP810018; CP810020; CP810021; CP810022; CP810023; CP810024; CP810025; CP810026; CP810027; CP810028; CP810029; CP810030; CP810031; CP810032; CP810033; CP810034; CP810035; CP810036; CP810037; CP810038; CP810039; CP810040; CS810021; CS810023; CS810024; Deposit type; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Description; Dredge; DRG; Event label; GS810358; GS810361; GS810362; GS810363; GS810365; GS810366; GS810367; GS810369; GS810370; GS810373; GS810376; GS810377; GS810378; Identification; Indian Ocean; Marion Dufresne (1972); MD28; MD28-02; MD28-03; MD28-08A; MD28-08B; MD28-14; MD28-15A; MD28-15B; MD28-17; MD28-22; MD28-23; MD28-24; MD28-25A; MD28-25B; MD28-25C; MD28-26; MD28-27A; MD28-27B; MD28-27C; MD28-28; MD28-29A; MD28-29B; MD28-29C; MD28-30A; MD28-30B; MD28-31A; MD28-31B; MD28-32A; MD28-32B; MD28-32C; MD28-32D; MD28-33A; MD28-33B; MD28-33C; MD28-34A; MD28-34B; MD28-34C; MD28-34D; MD28-35A; MD28-35B; MD28-35C; MD28-35D; MD28-36; MD28-36A; MD28-36B; MD28-36C; MD28-36D; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; PC; Piston corer; Position; Quantity of deposit; SAFARI II; Sediment type; SI810023; SI810024; SI810025; SI810026; Size; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 735 data points
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  • 48
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    In:  Supplement to: Korkisch, J (1977): Lithium concentration in manganese nodules of the Pacific Ocean (Hakurei Maru Cruise GH77-1, January-March, 1977). unpublished, handwritten
    Publication Date: 2023-08-28
    Description: Various manganese nodules donated to the Scripps Institution of Oceanography from the Hakurei Maru Cruise GH77-1, January-March, 1977, in the Central Pacific Basin have been analysed for their lithium content by J. Korkish from the Institute of Analytical Chemistry, Analysis of Nuclear Raw Materials Division, University of Vienna, Austria. The author has used a Perkin-Elmer atomic-absorption spectrometer 303 after speration by dissolution in hydrochloric acid.
    Keywords: Atomic absorption spectrometry (AAS); DEPTH, sediment/rock; Description; Event label; GH77-1; GH77-1-G385; GH77-1-G389; Hakurei-Maru (1974); Identification; Lithium; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; O70; Ocean 70 grab; Pacific Ocean
    Type: Dataset
    Format: text/tab-separated-values, 22 data points
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  • 49
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    In:  Supplement to: Fewkes, Ronald H; McFarland, William Douglas; Sorem, Ronald K (1981): Manganese nodule resource data, Sea Scope Expedition: final report. U.S. Bureau of Mines Open File Report, Dept. of Geology, Washington State University, Pullman, Washington, U.S.A., 144, 230 pp
    Publication Date: 2023-08-28
    Description: New information on possible resource value of sea floor manganese nodule deposits in the eastern north Pacific has been obtained by a study of records and collections of the 1972 Sea Scope Expedition. Nodule abundance (percent of sea floor covered) varies greatly, according to photographs from eight stations and data from other sources. All estimates considered reliable are plotted on a map of the region. Similar maps show the average content of Ni, Cu, Mn and Co at 89 stations from which three or more nodules were analyzed. Variations in nodule metal content at each station are shown graphically in an appendix, where data on nodule sizes are also given. Results of new analyses of 420 nodules from 93 stations for mn, fe, ni, cu, CO, and zn are listed in another appendix. Relatively high Ni + Cu content is restricted chiefly to four groups of stations in the equatorial region, where group averages are 1.86, 1.99, 2.47, and 2.55 weight-percent. Prepared for United States Department of the Interior, Bureau of Mines. Grant no. GO284008-02-MAS. - NTIS PB82-142571.
    Keywords: BC; Box corer; Cobalt; Copper; Core; CORE; Date/Time of event; DEPTH, sediment/rock; Dredge, bucket; DRG_BU; Elevation of event; Event label; Iron; Latitude of event; Longitude of event; Manganese; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Sample ID; Seascope Expedition; SS72/1; SS72/2; SS72/3; SS72/5; SS72/6; SS72-103DB; SS72-104DB; SS72-105DB; SS72-106DB; SS72-111DB; SS72-112DB; SS72-114DB; SS72-115DB; SS72-122DB; SS72-124DB; SS72-125DB; SS72-126DB; SS72-127DB; SS72-131DB; SS72-132DB; SS72-134DB; SS72-135DB; SS72-138DB; SS72-13DB; SS72-141DB; SS72-148DB; SS72-149DB; SS72-14DB; SS72-150DB; SS72-151DB; SS72-152DB; SS72-153DB; SS72-154DB; SS72-155DB; SS72-156DB; SS72-157DB; SS72-16DB; SS72-17DB; SS72-19SC; SS72-20DB; SS72-21DB; SS72-22DB; SS72-23DB; SS72-24DB; SS72-25DB; SS72-26DB; SS72-27DB; SS72-28DB; SS72-29DB; SS72-30DB; SS72-31DB; SS72-32DB; SS72-33DB; SS72-36DB; SS72-37CC; SS72-38DB; SS72-3DB; SS72-41DB; SS72-44DB; SS72-4DB; SS72-50DB; SS72-52DB; SS72-53DB; SS72-57DB; SS72-58DB; SS72-59DB; SS72-5DB; SS72-60DB; SS72-63DB; SS72-65DB; SS72-66DB; SS72-68DB; SS72-69DB; SS72-6DB; SS72-70DB; SS72-72DB; SS72-74DB; SS72-79DB; SS72-7DB; SS72-80DB; SS72-83DB; SS72-84DB; SS72-85DB; SS72-86DB; SS72-87DB; SS72-89DB; SS72-8CC; SS72-90DB; SS72-91DB; SS72-92DB; SS72-93DB; SS72-94DB; SS72-95DB; SS72-96DB; SS72-97DB; SS72-98DB; SS72-99DB; SS72-9DB; X-ray fluorescence (XRF); Zinc
    Type: Dataset
    Format: text/tab-separated-values, 2940 data points
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  • 50
    Publication Date: 2023-08-28
    Keywords: Comment; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North-East Pacific Ocean; Position; PZ69-11; Quantity of deposit; Sediment type; Substrate type; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 21 data points
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  • 51
    Publication Date: 2023-08-28
    Keywords: Aluminium oxide; Calcium oxide; Copper(II) oxide; CY-74-26-14; CY-78-06-11; CY-78-12-41; CYAMEX; Cyana (Submersible); Deposit type; DEPTH, sediment/rock; East Pacific Rise; Electron microprobe (EMP); Event label; FAMOUS 06-74; FAMOUS74; Grab; GRAB; GRAB_subCyana; Grab, on Cyana [Submersible]; Identification; Iron oxide, FeO; Le Noroit; Magnesium oxide; Manganese oxide; Mid Atlantic Ridge; Nickel oxide; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Silicon dioxide; Sodium oxide; Titanium dioxide
    Type: Dataset
    Format: text/tab-separated-values, 629 data points
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  • 52
    Publication Date: 2023-08-28
    Keywords: Aluminium oxide; Atomic absorption spectrometry (AAS); BC; Box corer; Calcium oxide; Cobalt oxide; Comment; Copper(II) oxide; Date/Time of event; Deposit type; DEPTH, sediment/rock; Description; DOMES Site A, Pacific Ocean; DOMES Site B, Pacific Ocean; DOMES Site C, Pacific Ocean; Dredge, bucket; DRG_BU; Elevation of event; Event label; Insoluble residue; Iron oxide, Fe2O3; Latitude of event; Longitude of event; Loss on ignition; Magnesium oxide; Manganese oxide; Method/Device of event; Nickel oxide; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Oceanographer; Pacific Ocean; Phosphorus pentoxide; Potassium oxide; RP-8-OC-75; RP8OC7503; RP8OC75-47-12; RP8OC75-54-47; RP8OC76; RP-8-OC-76; RP8OC76-14-20; Sample ID; Seascope Expedition; Silicon dioxide; Sodium oxide; SS72/2; SS72/3; SS72/5; SS72/6; SS72-148DB; SS72-149DB; SS72-152DB; SS72-24DB; SS72-52DB; SS72-96DB; Titanium dioxide; Wet chemistry; X-ray fluorescence (XRF); Zinc oxide
    Type: Dataset
    Format: text/tab-separated-values, 193 data points
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  • 53
    Publication Date: 2023-08-28
    Keywords: Aluminium oxide; Atomic absorption spectrometry (AAS); BC; Box corer; Calcium oxide; Cobalt oxide; Comment; Copper(II) oxide; Date/Time of event; Deposit type; DEPTH, sediment/rock; Description; DOMES Site A, Pacific Ocean; DOMES Site B, Pacific Ocean; DOMES Site C, Pacific Ocean; Dredge, bucket; DRG_BU; Elevation of event; Event label; Iron oxide, Fe2O3; Latitude of event; Longitude of event; Magnesium oxide; Manganese oxide; Method/Device of event; Nickel oxide; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Oceanographer; Pacific Ocean; Potassium oxide; RP-8-OC-75; RP8OC7503; RP8OC75-47-12; RP8OC75-54-47; RP8OC76; RP-8-OC-76; RP8OC76-14-20; Sample ID; Seascope Expedition; Silicon dioxide; Sodium oxide; SS72/2; SS72/3; SS72/5; SS72/6; SS72-148DB; SS72-149DB; SS72-152DB; SS72-24DB; SS72-52DB; SS72-96DB; Titanium dioxide; X-ray fluorescence (XRF); Zinc oxide
    Type: Dataset
    Format: text/tab-separated-values, 187 data points
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  • 54
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    In:  Supplement to: Bloch, Salman (1981): Antipathetic magnesium-manganese relationship in basal metalliferous sediments. Chemical Geology, 33(1-2), 101-113, https://doi.org/10.1016/0009-2541(81)90088-7
    Publication Date: 2023-08-28
    Description: Basal metalliferous sediments from sites 77B, 80 and 81 of the Deep Sea Drilling Project represent mixtures of pelagic clay, biogenic ooze, and a metalliferous component of hydrothermal origin. The metalliferous end-member of the sediments displays a strong inverse relationship (r = -0.88) between Mg and Mn. Mg is most likely tied up in an X-ray amorphous Mg-silicate ("sepiolite"), whereas Mn occurs almost exclusively in an oxide phase. Precipitation of the Mg-rich phase is favored by high flow rates and limited mixing of the hydrothermal end-member (source of silica) with seawater (source of Mg). Under those conditions much of the hydrothermal Mn(2+), with its slow oxidation kinetics, may escape to the free water column. In contrast, in highly-diluted hydrothermal fluids, which provide a source solution for Mn-rich sediments, dissolved silica is diluted below saturation with respect to "sepiolite". The separation of the Mn and Mg phases may be further compounded by hydraulic fractionation.
    Keywords: 9-77B; 9-80; 9-81; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg9; North Pacific/HILL; South Pacific/VALLEY
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 55
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    PANGAEA
    In:  Supplement to: Devine, Joseph D; Leinen, Margaret W (1981): Chemistry of the massive sulfide deposit Cored at Site 471. In: Yeats, RS; Haq, BU; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 63, 679-686, https://doi.org/10.2973/dsdp.proc.63.124.1981
    Publication Date: 2023-08-28
    Description: We report here chemical analyses of sulfide and other minerals occurring in the massive sulfide deposit cored at Site 471. Details of the mineralogy and inferred paragenesis of the deposit will be reported elsewhere. The sulfide deposit at Site 471 occurs between overlying pelagic sediment and underlying basalt. The deposit is vertically zoned and consists, from top to bottom, of the following mineral assemblages: (1) pyrite, chalcopyrite, and Zn-sulfide in chert and calcite gangue (about 35 cm thick); (2) a 5-cm-thick metalliferous sediment layer described in detail by Leinen (this volume); and (3) a 4-cm-thick chert layer. The overlying sediment is a calcareous silty claystone that contains middle Miocene coccoliths (Bukry, this volume). The underlying basalt has been extensively chloritized and veined with calcite. In places feldspars are albitized, and calcite occurs as pseudomorphs after olivine. Relict textures suggest that the basalt grades into diabase and gabbro with increasing depth. Neither stock work nor disseminated sulfides was observed in the altered rocks.
    Keywords: 63-471; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg63; North Pacific/FAN
    Type: Dataset
    Format: application/zip, 5 datasets
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  • 56
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    PANGAEA
    In:  Supplement to: Cahill, Richard A (1981): Geochemistry of recent Lake Michigan sediments. llinois State Geological Survey, Circular No. 517, 104 pp, hdl:2142/42722
    Publication Date: 2023-08-28
    Description: The investigation of the sediments at the bottom of a lake provides a record of past geologic and climatic events that have influenced the lake and its associated drainage basin. The most recent sediments of a lake are indicators of man's impact on the surrounding watershed and emphasize the complex nature of interaction between chemical, biological, and physical processes that affect the distribution of sediments and their associated minerals and chemical species. The conclusions of this report are based on samples and measurements obtained during an extensive research cruise conducted in Lake Michigan by the Canada Survey Ship Limnos in August, 1975. Grab samples were collected at the intersections of a 12-by-12-km Universal Transverse Mercator (UTM) grid over most of the lake bottom; a more detailed 7-by-7-km UTM grid was used in Green Bay and in the northeastern corner of the lake. Systematic chemical analysis was performed on the sediment samples over 23 elements. In Green Bay, elevated levels of a number of chemical elements in the sediments - notably arsenic, barium, manganese, and iron - suggest that a local geochemical process or source is important. One possible explanation is that ferromanganese nodules or concretions were observed in surface sediments from a number of locations in Green Bay and extreme northwestern Lake Michigan.
    Keywords: Aluminium oxide; Antimony; Arsenic; Atomic absorption spectrometry (AAS); Barium; Beryllium; Bromine; Cadmium; Caesium; CAHILL1981; CAHILL1981_D39; CAHILL1981_D40; CAHILL1981_E40; CAHILL1981_F41; CAHILL1981_F44; CAHILL1981_G44; CAHILL1981_H45; CAHILL1981_H46; CAHILL1981_M46; CAHILL1981_N47; CAHILL1981_V44; CAHILL1981_V45; Calcium oxide; Carbon, organic, total; Carbon analyser, LECO; Cerium; Chloride; Chromium; Cobalt; Copper; DEPTH, sediment/rock; Europium; Event label; Gallium; Grab; GRAB; Green Bay, Lake Michigan; Hafnium; Instrumental neutron activation analysis (INAA); Iron oxide, Fe2O3; Lanthanum; Lead; Limnos; Little Traverse Bay, Lake Michigan; Lutetium; Magnesium oxide; Manganese oxide; Mercury; Molybdenum; Neutron activation analysis with radiochemical separation (NAA-RC); Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Northern Lake Michigan; Optical emission spectrochemical analysis (OEP); Phosphorus pentoxide; Potassium oxide; Rubidium; Samarium; Sample, optional label/labor no; Scandium; Selenium; Silicon dioxide; Silver; Sodium oxide; Strontium; Sulfur, total; Tantalum; Terbium; Thorium; Titanium dioxide; Tungsten; Uranium; Vanadium; X-ray fluorescence (XRF); Ytterbium; Zinc; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 563 data points
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  • 57
    Publication Date: 2023-08-28
    Keywords: 9-80; Aluminium; Atomic absorption spectrometry (AAS), Perkin-Elmer; Calcium carbonate; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Iron; Iron, fractionated; Leg9; Magnesium; Manganese; Manganese, fractionated; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Phosphorus; Sample code/label; Silicon; South Pacific/VALLEY; X-ray fluorescence (XRF)
    Type: Dataset
    Format: text/tab-separated-values, 72 data points
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  • 58
    Publication Date: 2023-08-28
    Keywords: Atomic absorption spectrometry (AAS); DEPTH, sediment/rock; Description; DISTANCE; Distance, maximum; Distance, minimum; Dredge; DRG; Event label; Iron; Manganese; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Oneida Lake, NY, USA; Oneida-Lake-123; Oneida-Lake-129; Position; Sample ID
    Type: Dataset
    Format: text/tab-separated-values, 94 data points
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  • 59
    Publication Date: 2023-08-28
    Keywords: Comment; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Event label; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Oneida Lake, NY, USA; Oneida-Lake-123; Oneida-Lake-129; Position; Quantity of deposit; Sample ID; Sediment type; Size; Substrate type
    Type: Dataset
    Format: text/tab-separated-values, 27 data points
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  • 60
    Publication Date: 2023-08-28
    Keywords: CY-74-26-14; CY-78-06-11; CY-78-12-41; CYAMEX; Cyana (Submersible); Deposit type; DEPTH, sediment/rock; Description; East Pacific Rise; Event label; FAMOUS 06-74; FAMOUS74; File name; Grab; GRAB; GRAB_subCyana; Grab, on Cyana [Submersible]; Identification; Le Noroit; Mid Atlantic Ridge; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Substrate type; Uniform resource locator/link to image; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
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  • 61
    Publication Date: 2023-07-10
    Keywords: 62-466; Arkhangelskiella cymbiformis; Biscutum constans; Biscutum sp.; Broinsonia parca; Broinsonia sp.; Chiastozygus litterarius; Coccolithus pelagicus; Comment; Corollithion achylosum; Corollithion signum; Cretarhabdus angustiforatus; Cretarhabdus conicus; Cretarhabdus coronadventis; Cretarhabdus crenulatus; Cretarhabdus loriei; Cretarhabdus schizobrachiatus; Cribrosphaerella ehrenbergii; Cruciellipsis chiasta; Cyclagelosphaera margerelii; Deep Sea Drilling Project; DEPTH, sediment/rock; Discoaster surculus; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Eiffellithus eximius; Eiffellithus trabeculatus; Eiffellithus turriseiffelii; Gartnerago obliquum; Glomar Challenger; Kamptnerius magnificus; Leg62; Lithastrinus floralis; Lithastrinus grillii; Lithraphidites acutum; Lithraphidites carniolensis; Manivitella pemmatoidea; Microrhabdulus decoratus; Microrhabdulus sp.; Micula staurophora; Nannofossil abundance; Nannofossils preservation; Nannofossil zone; North Pacific/CONT RISE; Parhabdolithus angustus; Parhabdolithus asper; Parhabdolithus embergeri; Parhabdolithus regularis; Parhabdolithus splendens; Podorhabdus albianus; Prediscosphaera cretacea; Prediscosphaera spinosa; Quadrum gartneri; Sample code/label; Scapholithus fossilis; Smear slide analysis; Stage; Stephanolithion laffittei; Tetralithus aculeus; Tetralithus gothicus; Tetralithus trifidus; Tranolithus phacelosus; Tranolithus sp.; Vagalapilla matalosa; Vagalapilla stradneri; Watznaueria barnesae; Watznaueria biporta; Zygodiscus diplogrammus
    Type: Dataset
    Format: text/tab-separated-values, 1914 data points
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  • 62
    Publication Date: 2023-07-10
    Keywords: 62-465; Arkhangelskiella cymbiformis; Biscutum constans; Chiastozygus litterarius; Cretarhabdus angustiforatus; Cretarhabdus conicus; Cretarhabdus crenulatus; Cretarhabdus loriei; Cretarhabdus schizobrachiatus; Cretarhabdus sp.; Cribrosphaerella ehrenbergii; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Eiffellithus turriseiffelii; Glomar Challenger; Kamptnerius magnificus; Leg62; Lithraphidites carniolensis; Lithraphidites quadratus; Manivitella pemmatoidea; Microrhabdulus decoratus; Microrhabdulus stradneri; Micula mura; Micula staurophora; Nannofossil abundance; Nannofossils preservation; Nannofossil zone; North Pacific/CONT RISE; Parhabdolithus angustus; Parhabdolithus embergeri; Parhabdolithus regularis; Parhabdolithus splendens; Prediscosphaera cretacea; Prediscosphaera spinosa; Quadrum gartneri; Sample code/label; Smear slide analysis; Stage; Tetralithus aculeus; Vagalapilla stradneri; Watznaueria barnesae; Watznaueria biporta; Zygodiscus diplogrammus
    Type: Dataset
    Format: text/tab-separated-values, 288 data points
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  • 63
    Publication Date: 2023-07-10
    Keywords: 62-464; Biscutum constans; Biscutum magnum; Biscutum sp.; Chiastozygus litterarius; Comment; Corollithion signum; Cretarhabdus angustiforatus; Cretarhabdus conicus; Cretarhabdus coronadventis; Cretarhabdus crenulatus; Cretarhabdus loriei; Cretarhabdus sp.; Cribrosphaerella ehrenbergii; Cruciellipsis chiasta; Cyclagelosphaera margerelii; Deep Sea Drilling Project; DEPTH, sediment/rock; Discoaster sp.; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Eiffellithus turriseiffelii; Flabellites biforaminis; Glomar Challenger; Leg62; Lithastrinus floralis; Lithraphidites acutum; Lithraphidites carniolensis; Lithraphidites sp.; Manivitella pemmatoidea; Nannoconus sp.; Nannofossil abundance; Nannofossils preservation; Nannofossil zone; North Pacific/CONT RISE; Parhabdolithus angustus; Parhabdolithus asper; Parhabdolithus embergeri; Podorhabdus albianus; Prediscosphaera cretacea; Rucinolithus irregularis; Sample code/label; Scapholithus fossilis; Smear slide analysis; Stage; Tranolithus phacelosus; Watznaueria barnesae; Watznaueria biporta; Watznaueria sp.; Zygodiscus diplogrammus
    Type: Dataset
    Format: text/tab-separated-values, 1366 data points
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  • 64
    Publication Date: 2023-07-10
    Keywords: 62-463; Arkhangelskiella cymbiformis; Biscutum constans; Braarudosphaera bigelowii; Braarudosphaera sp.; Chiastozygus litterarius; Comment; Conusphaera mexicana; Corollithion achylosum; Corollithion signum; Cretarhabdus angustiforatus; Cretarhabdus coronadventis; Cretarhabdus loriei; Cretarhabdus sp.; Cribrosphaerella ehrenbergii; Cruciellipsis chiasta; Cyclagelosphaera margerelii; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Eiffellithus eximius; Eiffellithus turriseiffelii; Flabellites biforaminis; Gartnerago obliquum; Glomar Challenger; Kamptnerius magnificus; Leg62; Lithastrinus floralis; Lithastrinus septentrionalis; Lithraphidites acutum; Lithraphidites alatus; Lithraphidites carniolensis; Manivitella pemmatoidea; Micrantholithus obtusus; Microrhabdulus decoratus; Microrhabdulus helicoideus; Microrhabdulus stradneri; Micula infracretacea; Micula staurophora; Nannoconus bucheri; Nannoconus colomii; Nannoconus sp.; Nannoconus truitti; Nannofossil abundance; Nannofossils preservation; Nannofossil zone; North Pacific/SEAMOUNT; Parhabdolithus angustus; Parhabdolithus asper; Parhabdolithus embergeri; Parhabdolithus regularis; Podorhabdus albianus; Prediscosphaera cretacea; Quadrum gartneri; Rucinolithus irregularis; Sample code/label; Smear slide analysis; Stage; Stephanolithion laffittei; Tetralithus aculeus; Tetralithus gothicus; Tetralithus obscurus; Tetralithus trifidus; Tranolithus phacelosus; Vagalapilla matalosa; Vagalapilla sp.; Vagalapilla stradneri; Watznaueria barnesae; Watznaueria biporta; Watznaueria britannica; Watznaueria communis; Watznaueria sp.; Zygodiscus diplogrammus
    Type: Dataset
    Format: text/tab-separated-values, 6404 data points
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  • 65
    Publication Date: 2023-07-10
    Keywords: 62-465A; Arkhangelskiella cymbiformis; Biscutum constans; Biscutum sp.; Braarudosphaera bigelowii; Braarudosphaera sp.; Broinsonia parca; Chiastozygus litterarius; Coccolithus pelagicus; Comment; Corollithion achylosum; Corollithion signum; Cretarhabdus angustiforatus; Cretarhabdus conicus; Cretarhabdus coronadventis; Cretarhabdus crenulatus; Cretarhabdus loriei; Cretarhabdus schizobrachianus; Cretarhabdus sp.; Cribrosphaerella ehrenbergii; Cribrosphaerella sp.; Cruciellipsis chiasta; Cruciplacolithus tenuis; Cyclagelosphaera margerelii; Deep Sea Drilling Project; DEPTH, sediment/rock; Discoaster lodoensis; Discoaster multiradiatus; Discoaster sp.; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Eiffellithus eximius; Eiffellithus trabeculatus; Eiffellithus turriseiffelii; Flabellites biforaminis; Gartnerago obliquum; Glomar Challenger; Kamptnerius magnificus; Leg62; Lithastrinus floralis; Lithastrinus grillii; Lithraphidites acutum; Lithraphidites alatus; Lithraphidites carniolensis; Lithraphidites quadratus; Manivitella pemmatoidea; Markalius inversus; Microrhabdulus decoratus; Microrhabdulus stradneri; Micula mura; Micula staurophora; Micula staurophora concava; Nannoconus globulus; Nannoconus sp.; Nannofossil abundance; Nannofossils preservation; Nannofossil zone; North Pacific/CONT RISE; Parhabdolithus angustus; Parhabdolithus asper; Parhabdolithus embergeri; Parhabdolithus regularis; Parhabdolithus splendens; Podorhabdus albianus; Prediscosphaera cretacea; Prediscosphaera spinosa; Quadrum gartneri; Sample code/label; Scapholithus sp.; Smear slide analysis; Stage; Stephanolithion laffittei; Tetralithus aculeus; Tetralithus gothicus; Tetralithus trifidus; Tranolithus phacelosus; Vagalapilla matalosa; Vagalapilla stradneri; Watznaueria barnesae; Watznaueria biporta; Zygodiscus diplogrammus; Zygodiscus erectus
    Type: Dataset
    Format: text/tab-separated-values, 3529 data points
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  • 66
    Publication Date: 2023-07-10
    Keywords: 62-463; Acaenolithus sp.; Amphizygus brooksii; Assipetra sp.; Axopodorhabdus albianus; Biscutum constans; Braarudosphaera sp.; Broinsonia enormis; Broinsonia signata; Chiastozygus litterarius; Corollithion signum; Cretarhabdus conicus; Cretarhabdus crenulatus; Cretarhabdus loriei; Cribrosphaerella ehrenbergii; Cruciellipsis chiastia; Cyclagelosphaera deflandrei; Cyclagelosphaera margerelii; Deep Sea Drilling Project; Diazomatolithus lehmanii; Discorhabdus ignotus; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Eiffellithus trabeculatus; Eiffellithus turriseiffelii; Etching index; Gaarderella cf. granulifera; Gephyrorhabdus coronadventis; Glomar Challenger; Haqius circumradiatus; Hayesites radiatus; Leg62; Light microscope; Lithastrinus floralis; Lithraphidites alatus; Lithraphidites carniolensis; Manivitella pemmatoidea; Nannoconus sp.; Nannofossils; Nannofossil zone; North Pacific/SEAMOUNT; Overgrowth index; Parhabdolithus angustus; Parhabdolithus asper; Parhabdolithus embergeri; Parhabdolithus splendens; Parhabdolithus swinnertonii; Podorhabdus dietzmannii; Prediscosphaera cretacea; Prediscosphaera spinosa; Reinhardtites fenestratus; Rucinolithus irregularis; Rucinolithus sp.; Sample code/label; Sollasites horticus; Stephanolithion laffittei; Tegumentum stradneri; Tetralithus malticus; Tetrapodorhabdus decorus; Tranolithus gabalus; Tranolithus orionatus; Vagalapilla angusta; Vagalapilla compacta; Vagalapilla matalosa; Vagalapilla stradneri; Watznaueria barnesae; Watznaueria biporta; Watznaueria britannica; Watznaueria oblonga; Watznaueria ovata; Watznaueria supracretacea; Zygodiscus diplogrammus; Zygodiscus elegans; Zygodiscus erectus; Zygodiscus spiralis
    Type: Dataset
    Format: text/tab-separated-values, 1072 data points
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  • 67
    Publication Date: 2023-10-19
    Keywords: 62-464; Accumulation rate, dust; Accumulation rate, mass; AGE; Calculated, see reference(s); Deep Sea Drilling Project; Density, dry bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Dust, aeolian; Glomar Challenger; Leg62; North Pacific/CONT RISE; Porosity; Sample code/label; Sedimentation rate; see reference(s)
    Type: Dataset
    Format: text/tab-separated-values, 89 data points
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  • 68
    Publication Date: 2023-10-19
    Keywords: 62-466; Accumulation rate, dust; Accumulation rate, mass; AGE; Calculated, see reference(s); Deep Sea Drilling Project; Density, dry bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Dust, aeolian; Glomar Challenger; Leg62; North Pacific/CONT RISE; Porosity; Sample code/label; Sedimentation rate; see reference(s)
    Type: Dataset
    Format: text/tab-separated-values, 280 data points
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  • 69
    Publication Date: 2023-10-19
    Keywords: 62-465; 62-465A; Accumulation rate, dust; Accumulation rate, mass; AGE; Calculated, see reference(s); Comment; Deep Sea Drilling Project; Density, dry bulk; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Dust, aeolian; Event label; Glomar Challenger; Leg62; North Pacific/CONT RISE; Porosity; Sample code/label; Sedimentation rate; see reference(s)
    Type: Dataset
    Format: text/tab-separated-values, 336 data points
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  • 70
    Publication Date: 2023-12-01
    Keywords: Age, dated; Archive of Ocean Data; ARCOD; Dredge; DRG; Elevation of event; Event label; GC; Grab; GRAB; Gravity corer; Indian Ocean; Lamina, number; Latitude of event; Length Recovered; Longitude of event; MULT; Multiple investigations; OKEAN; Okean Grab; VITYAZ; Vityaz (ex-Mars); Vityaz-31; Vityaz-33; Vityaz-35; Vityaz-36; VITYAZ4550; VITYAZ4577; VITYAZ4587; VITYAZ4588; VITYAZ4594; VITYAZ4654; VITYAZ4896; VITYAZ4897; VITYAZ4956; VITYAZ4957; VITYAZ5004; VITYAZ5005; VITYAZ5173; VITYAZ5196; VITYAZ5201; VITYAZ5206; VITYAZ5207; VITYAZ5208; VITYAZ5226; VITYAZ5227; VITYAZ5229; VITYAZ5308; VITYAZ5314; VITYAZ5328-3; VITYAZ6729; VITYAZ6742-12; VITYAZ6754-1; VITYAZ7414
    Type: Dataset
    Format: text/tab-separated-values, 112 data points
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  • 71
    Publication Date: 2023-12-01
    Keywords: Age, dated; Archive of Ocean Data; ARCOD; Dredge; DRG; Elevation of event; Event label; GC; Grab; GRAB; Gravity corer; Indian Ocean; Lamina, number; Lamina, width; Latitude of event; Length Recovered; Longitude of event; OKEAN; Okean Grab; PC; Percentage; Piston corer; VITYAZ; Vityaz (ex-Mars); Vityaz-31; Vityaz-33; Vityaz-35; Vityaz-36; VITYAZ4511; VITYAZ4518; VITYAZ4522; VITYAZ4532; VITYAZ4535; VITYAZ4536; VITYAZ4538; VITYAZ4541; VITYAZ4543; VITYAZ4548; VITYAZ4550; VITYAZ4582; VITYAZ4583; VITYAZ4591; VITYAZ4594; VITYAZ4903GC; VITYAZ4978; VITYAZ4984; VITYAZ4986; VITYAZ4994; VITYAZ4997; VITYAZ5003; VITYAZ5167; VITYAZ5171; VITYAZ5208; VITYAZ5220; VITYAZ5224; VITYAZ5226; VITYAZ5227; VITYAZ5314; VITYAZ6729; VITYAZ6742-12; VITYAZ6742-18; VITYAZ6754-1; VITYAZ7421
    Type: Dataset
    Format: text/tab-separated-values, 385 data points
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  • 72
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Simoneit, Bernd R T; Brenner, Shmuel; Peters, K E; Kaplan, I R (1981): Thermal alteration of Cretaceous black shale by diabase intrusions in the eastern Atlantic - II. Effects on bitumen and kerogen. Geochimica et Cosmochimica Acta, 45(9), 1581-1602, https://doi.org/10.1016/0016-7037(81)90287-8
    Publication Date: 2024-02-03
    Description: The thermal effects of three (one major and two minor) Miocene diabase intrusions on Cretaceous black shales from DSDP site 41-368 have been analyzed. A concentration gradient was observed, especially for the hydrocarbons, decreasing towards the major intrusion and between the three sills. The thermally-altered samples in the proximity of and between the sills contained elemental sulfur and an excess of thermally-derived pristane over phytane. whereas, the unaltered sediments contained no elemental sulfur, and more phytane than pristane. A maximum yield of the extractable hydrocarbons was observed at a depth of 7 m below the major sill. Two classes of molecular markers were present in this bitumen suite. The first was sesqui-, di- and triterpenoids and steranes. which could be correlated with both terrigenous and autochthonous sources. They were geologically mature and showed no significant changes due to the thermal stress. The second class was found in the altered samples, which contained only polynuclear aromatic hydrocarbons with low alkyl substitution and sulfur and oxygen heterocyclic aromatic compounds. These compounds were derived from pyrolytic reactions during the thermal event. Kerogen was isolated from all of these samples, but only traces of humic substances were present. The H/C, N/C, d13C, d34S and dD all exhibit the expected effects of thermal stress. The kerogen becomes more aromatized and richer in 13C, 34S and D in the proximity of and between the sills. Maturation trends were also measured by the vitrinite reflectance and electron spin resonance, where the thermal stress could be correlated with an elevated country rock temperature and an increased degree of aromaticity. The effects of in situ thermal stress on the organic-rich shales resulted in the generation and expulsion of petroliferous material from the vicinity of the sills.
    Keywords: 41-368; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg41; North Atlantic/CONT RISE
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 73
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M50; M50_430; Manganese; Mediterranean Sea; Meteor (1964); Nitrate; Oxygen; Phosphate; Salinity; Silicate; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 183 data points
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  • 74
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M50; M50_436; Manganese; Mediterranean Sea; Meteor (1964); Nitrate; Oxygen; Phosphate; Salinity; Silicate; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 143 data points
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  • 75
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M50; M50_432; Manganese; Mediterranean Sea; Meteor (1964); Nitrate; Oxygen; Phosphate; Salinity; Silicate; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 169 data points
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  • 76
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M50; M50_440; Manganese; Mediterranean Sea; Meteor (1964); Nitrate; Oxygen; Phosphate; Salinity; Silicate; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 142 data points
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  • 77
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; Event label; GIK/IfG; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; Latitude of event; Longitude of event; M50; M50_390; M50_395; M50_407; M50_409; M50_415; M50_421; M50_424; Manganese; Mediterranean Sea; Meteor (1964); Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 34 data points
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  • 78
    Publication Date: 2024-02-03
    Keywords: 41-368; Calcium carbonate; Carbon, inorganic, total; Carbon, organic, total; Carbon/Nitrogen ratio; Carbon Preference Index; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Distance; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analyser CHNS; Fatty acid esters; Feature; Gas chromatography; Glomar Challenger; Hydrocarbons; Isotope ratio mass spectrometry; Leg41; Lipids, total; Nitrogen, total; North Atlantic/CONT RISE; Pristane/Phytane ratio; Sample code/label; Sulfur, total; δ13C
    Type: Dataset
    Format: text/tab-separated-values, 423 data points
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  • 79
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Kremling, Klaus; Petersen, Hauke (1981): The distribution of zinc, cadmium, copper, manganese and iron in waters of the open Mediterranean Sea. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe A/B Allgemeines, Physik und Chemie des Meeres, Gebrüder Bornträger, Berlin, Stuttgart, A/B23, 5-14
    Publication Date: 2024-02-03
    Description: On a cruise from the eastern into western Mediterranean Sea in November/December 1978 a total of 126 samples were collected from 8 vertical profiles and 7 coastal stations for trace metal analysis. The sampling, processing and analysis was performed under strict "clean room" conditions. The concentration of the open-sea samples are close to oceanic results gathered under similar conditions. The grand averages from all profiles (± st. dev. of the individual samples) of 0.40 ± 0.16 µg/l Zn, 17.4 ± 7.4 ng/l Cd, 0.21 ± 0.07 µg/l Cu, 0.21 ± 0.13 µg/l Mn and 0.25 ± 0.09 µg/l Fe indicate that a "metal problem" does not exist in the open Mediterranean. A biologically mediated deplition in surface waters or correlation with nutrients have not been observed under the conditions established on this cruise. This is probably due top low primary production and seasonal advection processes prevailing in this sea. The data for manganese show generally higher values in the surface layer (0-75 m) than in deep waters. This could evidently proved in the nearshore profile indicating a terrigenous source for manganese.
    Keywords: GIK/IfG; Institute for Geosciences, Christian Albrechts University, Kiel; M50; M50_390; M50_395; M50_407; M50_409; M50_415; M50_421; M50_424; M50_428; M50_430; M50_432; M50_436; M50_437; M50_440; M50_450; M50_453; Mediterranean Sea; Meteor (1964); Water sample; WS
    Type: Dataset
    Format: application/zip, 9 datasets
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  • 80
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Pätzold, Jürgen (1981): Stratigraphie und Tektonik des Unter-Devon im Ebbe-Sattel auf Teilen des Blattes 4811 Meinerzhagen, Sauerland (Rheinisches Schiefergebirge). Diploma thesis, Fachbereich Mathematik-Naturwissenschaften der Christian-Albrechts-Universität Kiel (pdf 35 MB), 77 pp, https://store.pangaea.de/Publications/PaetzoldJ_1981/Paetzold_1981.pdf
    Publication Date: 2024-02-03
    Description: Ergebnisse: Durch konsequente Verfolgung der Tephrostratigraphie ergibt sich ein klareres Bild des neubearbeiteten Ausschnittes des Ebbe-Sattels. - Verseschichten kommen im kartierten Gebiet nicht vor. - Es ließen sich keine Winkeldiskordanzen oder Sedimentationslücken feststellen. - Im Hangenden der Bunten Ebbe-Gruppe kann entweder der Fahlenscheid-Vulkanit oder der Rehberg-Horizont kartiert werden, was ein Beweis für die Zeitgleichheit von beiden ist. - Der Haupt-Vulkanit ist zu Teilen mit Sicherheit subaerisch abgelagert worden: Die Felsokeratophyre und manche Tuffe zeigen ignimbritische Strukturen und im obersten Teil des Vulkanits finden sich "accretionary lapilli". - Die Haupt-Sattelachse des kartierten Sattels liegt nördlicher als FUCHS angenommen hat, nämlich zwischen Hüttebruch und Vor der Mark. - Die Auswertung der tektonischen Daten gibt keine Hinweise für mehrere tektonische Phasen. Es wird deshalb ein einphasiger Beanspruchungsplan vermutet.
    Keywords: Blatt_4811; Figure; File size; Geological mapping; GEOMAP; GIK/IfG; Institute for Geosciences, Christian Albrechts University, Kiel; Meinerzhagen, Sauerland, Rheinisches Schiefergebirge, Germany; Title; Uniform resource locator/link to graphic
    Type: Dataset
    Format: text/tab-separated-values, 16 data points
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  • 81
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M50; M50_437; Manganese; Mediterranean Sea; Meteor (1964); Nitrate; Oxygen; Phosphate; Salinity; Silicate; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 182 data points
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  • 82
    Publication Date: 2024-02-03
    Keywords: 41-368; Carbon/Nitrogen ratio; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analyser CHNS; Glomar Challenger; Hydrogen/Carbon ratio; Isotope ratio mass spectrometry; Kerogen, Ro; Leg41; North Atlantic/CONT RISE; Sample code/label; Yield; δ13C; δ34S, total; δ Deuterium
    Type: Dataset
    Format: text/tab-separated-values, 159 data points
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  • 83
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M50; M50_428; Manganese; Mediterranean Sea; Meteor (1964); Nitrate; Oxygen; Phosphate; Salinity; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 125 data points
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  • 84
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M50; M50_450; Manganese; Mediterranean Sea; Meteor (1964); Nitrate; Oxygen; Phosphate; Salinity; Silicate; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 146 data points
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  • 85
    Publication Date: 2024-02-03
    Keywords: Cadmium; Copper; DEPTH, water; GIK/IfG; Institute for Geosciences, Christian Albrechts University, Kiel; Iron; M50; M50_453; Manganese; Mediterranean Sea; Meteor (1964); Nitrate; Oxygen; Phosphate; Salinity; Silicate; Temperature, water; Water sample; WS; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 147 data points
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  • 86
    Publication Date: 2024-02-29
    Keywords: A150/180; A180-73; Atlantic Ocean; Atlantische Kuppenfahrten 1967/1-3; BCR; Box corer (Reineck); Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; East Atlantic; Elevation of event; Event label; GIK12309-2; GIK12310-4; GIK12328-5; GIK12329-6; GIK12331-4; GIK12345-5; GIK12347-2; GIK12379-3; GIK12392-1; GIK13207-3; GIK13209-2; GIK13289-1; Grain size, mean radius; KAL; Kasten corer; KOL; Latitude of event; Longitude of event; M12392-1; M25; M8; M8_017-1; M8/17-1; Meteor (1964); PC; Piston corer; Piston corer (Kiel type); Size fraction 〉 0.006 mm, silt; South Atlantic Ocean; SPC; Sphincter corer; V10; V10-83; V16; V16-20; V19; V19-303; V20; V20-241; V22; V22-195; V22-196; V22-197; V23; V23-100; V23-91; V23-93; V25; V25-44; V27; V27-178; V31; V31-2; V32; V32-31; V32-32; V32-33; VA-10/3; Valdivia (1961); Vema
    Type: Dataset
    Format: text/tab-separated-values, 116 data points
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  • 87
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Koopmann, B (1981): Sedimentation von Saharastaub im subtropischen Nordatlantik während der letzten 25.000 Jahre. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C35, 23-59, hdl:10013/epic.33257.d001
    Publication Date: 2024-02-29
    Description: The terrigenous sediment proportion of the deep sea sediments from off Northwest Africa has been studied in order to distinguish between the aeolian and the fluvial sediment supply. The present and fossil Saharan dust trajectories were recognized from the distribution patterns of the aeolian sediment. The following timeslices have been investigated: Present, 6,000, 12,000 and 18,000 y. B. P. Furthermore, the quantity of dust deposited off the Saharan coast has been estimated. For this purpose, 80 surface sediment samples and 34 sediment cores have been analysed. The stratigraphy of the cores has been achieved from oxygen isotopic curves, 14C-dating, foraminiferal transfer temperatures, and carbonate contents. Silt sized biogenic opal generally accounts for less than 2 % of the total insoluble sediment proportion. Only under productive upwelling waters and off river mouths, the opal proportion exceeds 2 % significantly. The modern terrigenous sediment from off the Saharan coast is generally characterized by intensely stained quartz grains. They indicate an origin from southern Saharan and Sahelian laterites, and a zonal aeolian transport in midtropospheric levels, between 1.5 an 5.5 km, by 'Harmattan' Winds. The dust particles follow large outbreaks of Saharan air across the African coast between 15° and 21° N. Their trajectories are centered at about 18° N and continue further into a clockwise gyre situated south of the Canary Islands. This course is indicated by a sickle-shaped tongue of coarser grain sizes in the deep-sea sediment. Such loess-sized terrigenous particles only settle within a zone extending to 700 km offshore. Fine silt and clay sized particles, with grain sizes smaller than 10- 15 µm, drift still further west and can be traced up to more than 4,000 km distance from their source areas. Additional terrigenous silt which is poor in stained quartz occurs within a narrow zone off the western Sahara between 20° and 27° N only. It depicts the present dust supply by the trade winds close to the surface. The dust load originates from the northwestern Sahara, the Atlas Mountains and coastal areas, which contain a particularly low amount of stained quartz. The distribution pattern of these pale quartz sediments reveals a SSW-dispersal of dust being consistent with the present trade wind direction from the NNE. In comparison to the sediments from off the Sahara and the deeper subtropical Atlantic, the sediments off river mouths, in particular off the Senegal river, are characterized by an additional input of fine grained terrigenous particles (〈 6 µm). This is due to fluvial suspension load. The fluvial discharge leads to a relative excess of fine grained particles and is observed in a correlation diagram of the modal grain sizes of terrigenous silt with the proportion of fine fraction (〈 6 µm). The aeolian sediment contribution by the Harmattan Winds strongly decreased during the Climatic Optimum at 6,000 y. B. P. The dust discharge of the trade winds is hardly detectable in the deep-sea sediments. This probably indicates a weakened atmospheric circulation. In contrast, the fluvial sediment supply reached a maximum, and can be traced to beyond Cape Blanc. Thus, the Saharan climate was more humid at 6,000 y B. P. A latitudinal shift of the Harmattan driven dust outbreaks cannot be observed. Also during the Glacial, 18,000 y. B. P., Harmattan dust transport crossed the African coast at latitudes of 15°-20° N. Its sediment load increased intensively, and markedly coarser grains spread further into the Atlantic Ocean. An expanded zone of pale-quart sediments indicates an enhanced dust supply by the trade winds blowing from the NE. No synglacial fluvial sediment contribution can be recognized between 12° and 30° N. This indicates a dry glacial climate and a strengthened stmospheric circulation over the Sahelian and Saharan region. The climatic transition pahes, at 12, 000 y. B. P., between the last Glacial and the Intergalcial, which is compareable to the Alerod in Europe, is characterized by an intermediate supply of terrigenous particles. The Harmattan dust transport wa weaker than during the Glacial. The northeasterly trade winds were still intensive. River supply reached a first postglacial maximum seaward of the Senegal river mouth. This indicates increasing humidity over the southern Sahara and a weaker atmospheric circulation as compared to the glacial. The accumulation rates of the terrigenous silt proportion (〉 6 µm) decrcase exponentially with increasing distance from the Saharan coast. Those of the terrigenous fine fraction (〈 6 µm) follow the same trend and show almost similar gradients. Accordingly, also the terrigenous fine fraction is believed to result predominantly from aeolian transport. In the Atlantic deep-sea sediments, the annual terrigenous sediment accumulation has fluctuated, from about 60 million tons p. a. during the Late Glacial (13,500-18,000 y. B. P, aeolian supply only) to about 33 million tons p. a. during the Holocene Climatic Optimum (6,000-9,000 y. B. P, mainly fluvial supply), when the river supply has reached a maximum, and to about 45 million tons p. a. during the last 4,000 years B. P. (fluvial supply only south of 18° N).
    Keywords: A150/180; A180-73; Atlantic Ocean; Atlantische Kuppenfahrten 1967/1-3; BC; BCR; Box corer; Box corer (Reineck); East Atlantic; FGGE-Equator 79 - First GARP Global Experiment; GC; GIK12309-2; GIK12310-4; GIK12326-4; GIK12328-4; GIK12328-5; GIK12329-4; GIK12329-6; GIK12330-1; GIK12331-1; GIK12331-4; GIK12336-1; GIK12337-4; GIK12344-3; GIK12345-5; GIK12347-1; GIK12347-2; GIK12379-3; GIK12392-1; GIK13207-3; GIK13209-2; GIK13211-3; GIK13218-1; GIK13219-1; GIK13236-1; GIK13238-1; GIK13255-2; GIK13289-1; GIK13289-2; GIK13291-1; GIK13312-1; GIK13530-1; GIK13533-3; GIK13534-1; Gravity corer; Gravity corer (Kiel type); KAL; Kasten corer; KOL; M12392-1; M25; M30; M30_183; M30_185; M30_208; M30_209; M30_230; M51; M8; M8_017-1; M8/17-1; Meteor (1964); off NW Africa; PC; Piston corer; Piston corer (Kiel type); SL; South Atlantic Ocean; SP8-4; SPC; Sphincter corer; V10; V10-83; V10-84; V10-90; V16; V16-20; V16-25; V17; V17-159; V19; V19-303; V19-304; V20; V20-241; V22; V22-194; V22-195; V22-196; V22-197; V22-213; V22-25; V23; V23-100; V23-106; V23-91; V23-93; V23-99; V25; V25-44; V26; V26-41; V27; V27-166; V27-167; V27-178; V27-253; V27-260; V27-262; V29; V29-169; V29-170; V30; V30-229; V30-233; V30-243; V30-49; V30-52; V30-56; V30-58; V30-74; V31; V31-2; V32; V32-18; V32-21TW; V32-24TW; V32-27TW; V32-30; V32-31; V32-31TW; V32-32; V32-33; V32-35TW; V32-37; V32-40TW; V32-52TW; V32-63TW; V32-9; VA-10/3; Valdivia (1961); van Veen Grab; Vema; VGRAB; Westafrika 1973
    Type: Dataset
    Format: application/zip, 53 datasets
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  • 88
    Publication Date: 2024-02-29
    Keywords: A150/180; A180-73; Atlantic Ocean; Atlantische Kuppenfahrten 1967/1-3; BC; BCR; Box corer; Box corer (Reineck); Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; East Atlantic; Elevation of event; Event label; GIK12309-2; GIK12310-4; GIK12328-5; GIK12329-6; GIK12331-4; GIK12345-5; GIK12347-2; GIK12379-3; GIK12392-1; GIK13207-3; GIK13209-2; GIK13289-1; Grain size, mean radius; KAL; Kasten corer; KOL; Latitude of event; Longitude of event; M12392-1; M25; M8; M8_017-1; M8/17-1; Meteor (1964); off NW Africa; PC; Piston corer; Piston corer (Kiel type); Size fraction 〉 0.006 mm, silt; South Atlantic Ocean; SP8-4; SPC; Sphincter corer; V10; V10-83; V16; V16-20; V19; V19-303; V20; V20-241; V22; V22-195; V22-196; V22-197; V23; V23-100; V23-91; V23-93; V25; V25-44; V26; V26-41; V27; V27-178; V31; V31-2; V32; V32-31; V32-33; VA-10/3; Valdivia (1961); Vema
    Type: Dataset
    Format: text/tab-separated-values, 122 data points
    Location Call Number Expected Availability
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  • 89
    Publication Date: 2024-02-29
    Keywords: Age, calcium carbonate stratigraphy; Age model; Comment; DEPTH, sediment/rock; PC; Piston corer; V20; V20-241; Vema
    Type: Dataset
    Format: text/tab-separated-values, 4 data points
    Location Call Number Expected Availability
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