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  • 11-105; 36-327A; 40-364; 41-367; 43-387; 47-398D; 48-400A; 51-417D; 62-463; 62-465A; 62-466; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg11; Leg36; Leg40; Leg41; Leg43; Leg47; Leg48; Leg51; Leg62; North Atlantic/BASIN; North Atlantic/CONT RISE; North Atlantic/HILL; North Atlantic/SEAMOUNT; North Pacific/CONT RISE; North Pacific/SEAMOUNT; South Atlantic/PLATEAU; South Atlantic/SYNCLINE  (1)
  • 119-738C; Antimony; Antimony, standard deviation; Arsenic; Barium; Barium, standard deviation; Caesium; Caesium, standard deviation; Chromium; Chromium, standard deviation; Cobalt; Cobalt, standard deviation; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Hafnium; Hafnium, standard deviation; Indian Ocean; Instrumental neutron activation analysis (INAA) (Reimann et al., 1998); Iridium; Iridium, standard deviation; Iron; Iron, standard deviation; Joides Resolution; Leg119; Ocean Drilling Program; ODP; Sample code/label; Scandium; Scandium, standard deviation; Tantalum; Tantalum, standard deviation; Thorium; Thorium, standard deviation; Uranium; Uranium, standard deviation; Zinc; Zinc, standard deviation  (1)
Collection
Keywords
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  • 1
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    Unknown
    Stable isotopic and carbonate cyclicity in deep sea sediments from different DSDP Holes (1991)
    PANGAEA
    In:  Supplement to: Thierstein, Hans R; Roth, Peter H (1991): Stable isotopic and carbonate cyclicity in Lower Cretaceous deep-sea sediments: Dominance of diagenetic effects. Marine Geology, 97(1-2), 1-34, https://doi.org/10.1016/0025-3227(91)90017-X
    Details
    Publication Date: 2023-12-07
    Description: Oxygen and carbon isotopic variability of the dominant (〈38 µm) carbonate fraction within bedded, organic-carbon rich Lower Cretaceous sediment intervals from various DSDP sites are closely correlated with preservational changes in the carbonates. Isotopic fluctuations are absent where carbonate contents vary little and where the carbonate fraction is dominated by biogenic phytoplankton remains. Within each of the studied intervals oxygen and carbon isotopic ratios become increasingly more negative in samples with carbonate contents higher than about 60% in which the proportion of diagenetic microcarbonate increases rapidly. Carbon isotopic ratios show a trend towards positive values in samples with carbonate contents of less than 40% and strong signs of dissolution. The taxonomic composition of nannofossil assemblages varies little within single intervals, despite significant differential diagenesis among individual beds; this points towards ecological stability of oceanic surface waters during the deposition of alternating beds. Bedding is, however, closely related to changing bioturbation intensity, indicating repeated fluctuations of the deep-water renewal rates and oxygen supply. Various microbial decomposition processes of organic matter leading to bed-specific differential carbonate diagenesis resulted in an amplification of primary bedding features and are considered responsible for most of the observed fluctuations in the stable isotopic ratios and carbonate contents.
    Keywords: 11-105; 36-327A; 40-364; 41-367; 43-387; 47-398D; 48-400A; 51-417D; 62-463; 62-465A; 62-466; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg11; Leg36; Leg40; Leg41; Leg43; Leg47; Leg48; Leg51; Leg62; North Atlantic/BASIN; North Atlantic/CONT RISE; North Atlantic/HILL; North Atlantic/SEAMOUNT; North Pacific/CONT RISE; North Pacific/SEAMOUNT; South Atlantic/PLATEAU; South Atlantic/SYNCLINE
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Unknown
    (Table 1) Element analyses across the Cretaceous-Tertiary boundary in ODP Hole 119-738C (1991)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 119-738C; Antimony; Antimony, standard deviation; Arsenic; Barium; Barium, standard deviation; Caesium; Caesium, standard deviation; Chromium; Chromium, standard deviation; Cobalt; Cobalt, standard deviation; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Hafnium; Hafnium, standard deviation; Indian Ocean; Instrumental neutron activation analysis (INAA) (Reimann et al., 1998); Iridium; Iridium, standard deviation; Iron; Iron, standard deviation; Joides Resolution; Leg119; Ocean Drilling Program; ODP; Sample code/label; Scandium; Scandium, standard deviation; Tantalum; Tantalum, standard deviation; Thorium; Thorium, standard deviation; Uranium; Uranium, standard deviation; Zinc; Zinc, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 815 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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