ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Data  (13)
  • PANGAEA  (13)
  • 1980-1984  (13)
  • 1982  (13)
Collection
  • Data  (13)
Keywords
Publisher
  • PANGAEA  (13)
Years
  • 1980-1984  (13)
Year
  • 1
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Keigwin, Lloyd D (1982): Stable isotope stratigraphy and paleoceanography of Sites 502 and 503. In: Prell, WL; Gardner, JV; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 68, 445-453, https://doi.org/10.2973/dsdp.proc.68.119.1982
    Publication Date: 2023-07-09
    Description: Analyses of stable isotopes of monospecific planktonic foraminifers (G. quadrilobatus group) and monogeneric benthic foraminifers (Cibicidoides spp.) from late Neogene Atlantic Site 502 and Pacific Site 503 were conducted in order to determine the paleoceanographic changes resulting from the late Neogene uplift of the Panama Isthmus and from climatic cooling. In general, results at each site are similar to those from previous studies for the late Miocene and late Pliocene time interval, documenting the late Miocene (6 Ma) shift in carbon isotopes and the inferred growth of permanent Northern Hemisphere continental ice sheets beginning about 3.2 Ma. Comparison of Atlantic-Pacific planktonic-benthic isotope data for four stratigraphic intervals (~6-8, ~5-6, ~3-5, and ~2-3 Ma) suggests that increasing isolation of Atlantic and Pacific low-latitude waters may be related to the emergence of the Panama Isthmus. The contrast between Atlantic and Pacific benthic foraminiferal d13C increased in two steps from 0.60 per mil to 1 per mil (the modern contrast) at about 6 Ma and 3 Ma. The first increase (0.15 per mil) may represent the end of previously limited deep-water communication between the Atlantic and Pacific at the present location of Panama. The second increase (0.25 per mil) may be due to increased production of North Atlantic Deep Water. This probably reflects the development of modern deep-sea circulation. The d18O of planktonic foraminifers begins to increase in Atlantic Site 502 at 4.2 Ma and may reflect the increasing salinity of the North Atlantic Ocean arising from diminishing surface-water exchange across Panama. This increase is clearly shown by contrasting the d18O of Atlantic and Pacific planktonic foraminifers, as well as the d18O of planktonic and benthic foraminifers at Site 502. This inferred increase in surface-water salinity begins at the time of increasing provinciality of Atlantic and Pacific planktonic foraminifers.
    Keywords: 68-502A; 68-502B; 68-502C; 68-503A; 68-503B; Caribbean Sea/RIDGE; Cibicidoides kullenbergi, δ13C; Cibicidoides kullenbergi, δ18O; Cibicidoides wuellerstorfi, δ13C; Cibicidoides wuellerstorfi, δ18O; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Globigerinoides quadrilobatus, δ13C; Globigerinoides quadrilobatus, δ18O; Glomar Challenger; Latitude of event; Leg68; Longitude of event; North Pacific/FLANK; Oridorsalis tener, δ13C; Oridorsalis tener, δ18O; Sample code/label; see reference(s)
    Type: Dataset
    Format: text/tab-separated-values, 699 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2023-07-10
    Keywords: 66-487; 67-495; 67-499C; 67-499D; 67-500; 67-500B; Antimony; Barium; Caesium; 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; Glomar Challenger; Hafnium; Iron; Lanthanum; Latitude of event; Leg66; Leg67; Longitude of event; Manganese; Nickel; Niobium; North Pacific/TRENCH; Rubidium; Sample code/label; Scandium; Strontium; Tantalum; Terbium; Thorium; Titanium; Uranium; Vanadium; X-ray fluorescence (XRF); Yttrium; Zinc; Zirconium
    Type: Dataset
    Format: text/tab-separated-values, 387 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2023-07-10
    Keywords: 60-453; 60-454A; 60-456; 60-456A; 60-457; 60-458; 60-459B; 60-460; 60-461A; Aluminium oxide; Barium; Calcium; 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; Leg60; Location; Longitude of event; Magnesium number; Magnesium oxide; Manganese oxide; Nickel; North Pacific/RIDGE; North Pacific/SEDIMENT POND; North Pacific/TRENCH; Phosphorus pentoxide; Potassium oxide; Rubidium; Sample code/label; Sample ID; 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, 551 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2023-07-07
    Keywords: -; 64-477; 64-478; 64-481A; Anorthite; Clinopyroxene; Comment; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Forsterite; Glomar Challenger; Latitude of event; Leg64; Liquid fraction; Longitude of event; North Pacific/Gulf of California/BASIN; North Pacific/Gulf of California/CHANNEL; Number; Olivine; Plagioclase; Sample code/label; Sample code/label 2; Spinel
    Type: Dataset
    Format: text/tab-separated-values, 276 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 2023-07-07
    Keywords: -; 64-474A; 64-475B; Anorthite; Clinopyroxene; Comment; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Forsterite; Glomar Challenger; Leg64; Liquid fraction; North Pacific/Gulf of California/BASIN; North Pacific/Gulf of California/SLOPE; Number; Olivine; Plagioclase; Sample code/label; Sample code/label 2; Spinel
    Type: Dataset
    Format: text/tab-separated-values, 220 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Krishnaswami, Seth; Mangini, Augusto; Thomas, J H; Sharma, P; Cochran, J Kirk; Turekian, Karl K; Parker, P D (1982): 10Be and Th isotopes in manganese nodules and adjacent sediments: Nodule growth histories and nuclide behavior. Earth and Planetary Science Letters, 59(2), 217-234, https://doi.org/10.1016/0012-821X(82)90127-3
    Publication Date: 2023-08-28
    Description: The usefulness of cosmogenic beryllium-10 (half life = 2.5 Ma) for studying the rates of accumulation of ferromanganese nodules is reported based on its measured depth distribution in the top 20 mm of these deposits. Accumulation rates have been obtained in the range of 1 to 4 mm/Ma, which are in good agreement with rates determined using the 230Th method on the same nodules. The use of 10Be offers promise in extending the dating to the outer few cm of the nodules. This contrasts with conventional methods using 230Th and 231Pa isotopes which, due to their comparatively short half lives, are limited to a few mm at the surface of the nodules. Detailed studies of 10Be in the manganese deposits coupled with other trace element analyses should prove valuable in understanding the processes of formation of these deposits and the chronology of events recorded by them.
    Keywords: ARRH-TF; BC; Box corer; DOMES-A47-16; Dredge; DRG; Indian Ocean; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Oceanographer; Pacific Ocean; RP8OC75; RP8OC75-47-16; Vit 5186; Vityaz (ex-Mars); Vityaz-35; VITYAZ5186
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Pawson, D L (1982): Deep-sea echinoderms in the Tongue of the Ocean, Bahama Islands: a survey, using the research submersible Alvin. Australian Museum Memoir, 16, 129-145, https://doi.org/10.3853/j.0067-1967.16.1982.362
    Publication Date: 2023-08-28
    Description: Deep-sea echinoderms of the Tongue of the Ocean, Bahama Islands, have been studied, using trawled collections made by the University of Miami together with observations from the deep submersible Alvin. Transect runs in the submersible permitted studies of population densities and behaviour of approximately 38 species of larger invertebrates, of which 27 were echinoderms. Several echinoderm species show a patchy distribution pattern which is apparently not related to available food resources. Some species are exclusively herbivores, feeding on fragments of turtle grass, Thalassia testudinata and sargassum weed, Sargassum spp. Feeding habits of some Tongue of the Ocean echinoderms are compared with those of the same species from further north, where supplies of plant material are not nearly so abundant.
    Keywords: ALV703; ALV-703; Alvin; Comment; Deposit type; DEPTH, sediment/rock; Description; File name; Grab; GRAB; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sediment type; Substrate type; Tongue of the Ocean; Uniform resource locator/link to image; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 10 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Mullins, Henry T; Keller, G H; Kofoed, John; Lambert, D N; Stubblefield, W L; Warme, J E (1982): Geology of Great Abaco Submarine Canyon (Blake Plateau): Observations from the research submersible “Alvin”. Marine Geology, 48(3-4), 239-257, https://doi.org/10.1016/0025-3227(82)90099-8
    Publication Date: 2023-08-28
    Description: Scientists from the Woods Hole Oceanographic Institution, the U.S. Navy, the State University of New York at Albany, Wesleyan University, Nine dives in the research submersible ?Alvin? were made into Great Abaco Submarine Canyon to depths ranging from 1850 to 3666 m. Our observations indicate that the walls of this canyon are distinctly terraced, consisting of nearly vertical to overhanging rock cliffs and intervening, less steep sediment-covered slopes. The wall rock consists mostly of massive, shallow-water limestones and dolostones of Cretaceous age, coated on exposed surfaces with manganese oxides. These rocks are heavily jointed/fractured and thus very blocky to angular in appearance, with sponges and other sessile organisms commonly attached. Talus slopes and sedimentary breccia deposits containing angular boulders are present at the base of these steep escarpments. Short-term bottom current measurements in the axis of the eastern part of the canyon indicate that currents are relatively weak, reaching velocities of only 10 cm/sec. This relatively placid setting is further corroborated by the abundance of turtle grass (Thalassia) found along the canyon axis. However, abundant subdued, symmetrical ripple marks and large scour depressions at the base of boulders, indicate that high-energy events sporadically impact the canyon axis. Contemporary erosional activity along the axis of the western (headward) part of the canyon appears to be more significant, as evidenced by asymmetrical ripple marks, sand waves and bioerosion. Great Abaco Canyon has evolved with time via a variety of processes, including: (1) faulting: (2) subsidence; (3) defacement; and (4) erosional down-cutting. The location, orientation and initiation of this canyon appear to be structurally controlled by the Great Abaco Fracture Zone during pre-Santonian time. Regional subsidence during the Mesozoic allowed the walls of Great Abaco Canyon to build vertically by accretion of shallow-water limestones, whereas joint-controlled defacement has widened the canyon while maintaining steep walls. Erosional down-cutting in the canyon axis by carbonate sediment gravity flows also appears to have been important episodically, particularly during the Miocene and Pleistocene.
    Keywords: ALV570; ALV570-1C; ALV570-2C; ALV756; ALV756-1D; Alvin; Blake Plateau, Atlantic Ocean; Deposit type; DEPTH, sediment/rock; Description; Event label; File name; Grab; GRAB; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Photo/Video; Position; PV; Quantity of deposit; Sediment type; Substrate type; Uniform resource locator/link to image; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 25 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Maury, R C; Bougault, Henri; Joron, Jean Louis; Girard, D; Treuil, M; Azéma, Jacques; Aubouin, Jean (1982): Volcanic rocks from Leg 67 Sites: mineralogy and geochemistry. In: Abouin, J; von Huene, R; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), LXVII, 557-576, https://doi.org/10.2973/dsdp.proc.67.123.1982
    Publication Date: 2023-08-28
    Description: Mineralogical (microprobe) and geochemical (X-ray fluorescence, neutron activation analyses) data are given for 18 samples of volcanic rocks from the Guatemala Trench area (Deep Sea Drilling Project Leg 67). Typical fresh oceanic tholeiites occur in the trench itself (Hole 500) and in its immediate vicinity on the Cocos Plate (Site 495). Several samples (often reworked) of "spilitic" oceanic tholeiites are also described from the Trench: their mineralogy (greenschist facies association - actinolite + plagioclase + chlorite) and geochemistry (alteration, sometimes linked to manganese and zinc mineralization) are shown to result from high-temperature (300°-475°C) hydrothermal sea water-basalt interactions. The samples studied are depleted in light rare-earth elements (LREE), with the exception of the slightly LREE-enriched basalts from Hole 500. The occurrence of such different oceanic tholeiites in the same area is problematic. Volcanic rocks from the Guatemala continental slope (Hole 494A) are described as greenschist facies metabasites (actinolite + epidote + chlorite + plagioclase + calcite + quartz), mineralogically different from the spilites exposed on the Costa Rica coastal range (Nicoya Peninsula). Their primary magmatic affinity is uncertain: clinopyroxene and plagioclase compositions, together with titanium and other hygromagmaphile element contents, support an "active margin" affinity. The LREE-depleted patterns encountered in the present case, however, are not frequently found in orogenic samples but are typical of many oceanic tholeiites.
    Keywords: 66-487; 67-494; 67-494A; 67-495; 67-499B; 67-499C; 67-499D; 67-500; 67-500B; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg66; Leg67; North Pacific/TRENCH
    Type: Dataset
    Format: application/zip, 13 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 2023-08-28
    Keywords: 67-499B; 67-499C; 67-499D; 67-500B; Aluminium oxide; Calcium oxide; CAMEBAX microprobe; Chromium(III) oxide; Deep Sea Drilling Project; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Iron oxide, FeO; Latitude of event; Leg67; Longitude of event; Magnesium oxide; Manganese oxide; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/TRENCH; Potassium oxide; Ratio; Sample code/label; Sample ID; Silicon dioxide; Sodium oxide; Titanium dioxide; Total
    Type: Dataset
    Format: text/tab-separated-values, 189 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...