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  • 1985-1989  (13)
Document type
Keywords
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  • 1
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    Unknown
    PANGAEA
    In:  Supplement to: Katz, Miriam E; Miller, Kenneth G (1986): Neogene benthic foraminiferal biofacies of the New Jersey Transect. In: Poag, CW; Watts, AB; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 95, 299-311, https://doi.org/10.2973/dsdp.proc.95.108.1987
    Publication Date: 2024-07-22
    Description: Quantitative study of benthic foraminifers from the upper Miocene to lower Pliocene section at Site 612 (1404 m present water depth) and the Pliocene section at Site 613 (2323 m present water depth) shows no evidence of widespread downslope transport of shallow-water biofacies or reworking of older material in the greater than 150 µm size fraction. In contrast, upper Miocene sediments from Site 604 (2364 m present water depth) show extensive reworking and downslope transport. At Site 612, benthic foraminifers show a succession from an upper Miocene Bolivina alata-Nonionella sp. biofacies, to an uppermost Miocene Bulimina alazanensis biofacies, to a lower Pliocene Cassidulina reflexa biofacies, to an upper Pliocene Melonis barleeanum-Islandiella laevigata biofacies. Evidence suggests that the Pliocene biofacies are in situ, although they could have been transported downslope from the upper-middle bathyal zone. At Site 613, Uvigerina peregrina dominated the "middle" Pliocene, while Globocassidulina subglobosa was dominant in the early and late Pliocene. High abundances of U. peregrina at Site 613 are associated with high values of sedimentary organic carbon.
    Keywords: Deep Sea Drilling Project; DSDP
    Type: dataset publication series
    Format: application/zip, 4 datasets
    Location Call Number Limitation Availability
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  • 2
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    Unknown
    PANGAEA
    In:  Supplement to: Miller, Kenneth G; Janecek, Thomas R; Katz, Miriam E; Keil, David J (1987): Abyssal circulation and benthic foraminiferal changes near the Paleocene/Eocene boundary. Paleoceanography, 2(6), 741-761, https://doi.org/10.1029/PA002i006p00741
    Publication Date: 2024-07-23
    Description: A major change in Cenozoic deep-sea benthic foraminifera occurred in the Atlantic, Indian, and Pacific oceans near the Paleocene/Eocene boundary. Benthic foraminiferal abundance changes began at about 61.5 Ma at Pacific Deep Sea Drilling Project (DSDP) Site 577. A major extinction event followed at 58-57 Ma (between Zones P6a and P6b), and a series of first appearances continued until circa 55.5 Ma (Zone P6c). These faunal changes occurred during a 6°C warming of Pacific bottom water and may indicate that the primary cause was changing temperature. Other potential causes of the faunal turnover include global changes in surface ocean productivity and changing bottom water source regions. Comparison of benthic and planktonic delta13C records requires no change in the ratio of oceanic phosphorous to carbon during the late Paleocene to early Eocene, which weakens the case for (but does not disprove) a change in surface ocean productivity at this time. Interbasinal comparisons of benthic foraminiferal delta13C records document that water with high delta13C values filled the Cape Basin during the late Paleocene and possibly the early Eocene (circa 61-57 Ma), but apparently did not extend into the western basins of the Atlantic. This pattern suggests a supply of Antarctic source water for the Cape Basin and possible tectonic isolation of the western Atlantic basins during at least part of the late Paleocene. Carbon isotope comparisons show that bottom water supply to the Cape Basin was reduced in the early Eocene. Eolian grain size data suggest that a decrease in zonal wind intensity occurred at the end of the Paleocene. These late Paleocene climatic changes (bottom water warming and decreased wind intensity) correspond with evidence for an important global tectonic reorganization and extensive subaerial volcanism, which may have contributed to climatic warming through increased supply of CO2.
    Keywords: 43-384; 73-524; 86-577; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg43; Leg73; Leg86; North Atlantic/RIDGE; North Pacific; South Atlantic/CANYON
    Type: dataset publication series
    Format: application/zip, 6 datasets
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2024-07-23
    Keywords: 43-384; AGE; Cibicidoides sp., δ13C; Cibicidoides sp., δ18O; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Isotope ratio mass spectrometry; Leg43; North Atlantic/RIDGE; Sample code/label
    Type: dataset
    Format: text/tab-separated-values, 39 data points
    Location Call Number Limitation Availability
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  • 4
    Publication Date: 2024-07-23
    Keywords: 86-577; AGE; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Isotope ratio mass spectrometry; Leg86; North Pacific; Nuttallides truempyi, δ13C; Nuttallides truempyi, δ18O; Sample code/label
    Type: dataset
    Format: text/tab-separated-values, 63 data points
    Location Call Number Limitation Availability
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  • 5
    Publication Date: 2024-07-23
    Keywords: 43-384; AGE; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Isotope ratio mass spectrometry; Leg43; North Atlantic/RIDGE; Nuttallides truempyi, δ13C; Nuttallides truempyi, δ18O; Sample code/label
    Type: dataset
    Format: text/tab-separated-values, 27 data points
    Location Call Number Limitation Availability
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  • 6
    Publication Date: 2024-07-23
    Keywords: 73-524; Age model; Age model, paleomag, Berggren et al (1985); Ageprofile Datum Description; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg73; Reference/source; South Atlantic/CANYON
    Type: dataset
    Format: text/tab-separated-values, 18 data points
    Location Call Number Limitation Availability
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  • 7
    Publication Date: 2024-07-23
    Keywords: 43-384; Age model; Age model, paleomag, Berggren et al (1985); Ageprofile Datum Description; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg43; North Atlantic/RIDGE
    Type: dataset
    Format: text/tab-separated-values, 22 data points
    Location Call Number Limitation Availability
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  • 8
    Publication Date: 2024-07-23
    Keywords: 86-577; Age model; Age model, paleomag, Berggren et al (1985); Ageprofile Datum Description; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg86; North Pacific; Reference/source
    Type: dataset
    Format: text/tab-separated-values, 27 data points
    Location Call Number Limitation Availability
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  • 9
    Publication Date: 2024-07-23
    Keywords: 95-612; Abyssamina spp.; AGE; Alabamina cf. dissonata; Anomalinoides spp.; Aragonia spp.; Bathysiphon eocenica; Bolivina antegressa; Bulimina alazanensis; Bulimina callahani; Bulimina glomarchallengeri; Bulimina jarvisi; Bulimina macilenta; Bulimina semicostata; Bulimina trinitatensis; Bulimina tuxpamensis; Buliminella grata; Cassidulina havanensis; Cibicidoides bradyi; Cibicidoides cf. pseudoperlucidus; Cibicidoides grimsdalei; Cibicidoides havanensis; Cibicidoides laurisae; Cibicidoides mundulus; Cibicidoides subspiratus; Cibicidoides tuxpamensis; Clinapertina spp.; Counting 〉149 µm fraction; Deep Sea Drilling Project; Dentalina spp.; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Eggerella sp.; Foraminifera, benthic; Foraminifera, benthic agglutinated; Gaudryina cf. laevigata; Gaudryina cf. pyramidata; Gaudryina pyramidata; Gavelinella capitata; Gavelinella micra; Globocassidulina subglobosa; Glomar Challenger; Gyroidinoides spp.; Hanzawaia ammophila; Karreriella chapapotensis; Karreriella subglabra; Leg95; Lenticulina spp.; Nonionellina spp.; Nonion spp.; North Atlantic/SLOPE; Nuttallides truempyi; Oridorsalis umbonatus; Osangularia spp.; Planulina renzi; Pleurostomella spp.; Pullenia quinqueloba; Quadrimorphina profunda; Sample code/label; Sigmoilopsis sp.; Siphonina sp.; Siphonodosaria gracillima; Spiroplectammina spectabilis; Spirosigmoilinella compressa; Stilostomella subspinosa; Stylodictya aculeata; Trifarina danvillensis; Trifarina sp.; Tritaxia sp.; Turrilina robertsi; Uvigerina basicordata; Uvigerina hispida; Uvigerina rippensis; Vulvulina spinosa
    Type: dataset
    Format: text/tab-separated-values, 2014 data points
    Location Call Number Limitation Availability
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  • 10
    Publication Date: 2024-07-23
    Keywords: 95-613; Counting 〉150 µm fraction; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Foraminifera, benthic; Glomar Challenger; Leg95; North Atlantic/CONT RISE; Sample code/label; Uvigerina peregrina; Uvigerina spp.
    Type: dataset
    Format: text/tab-separated-values, 48 data points
    Location Call Number Limitation Availability
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