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  • Data  (7)
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  • 1
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    Stable isotopes of sediment core MD85-668
    PANGAEA
    In:  Supplement to: Shackleton, Nicholas J; Hall, Michael A; Pate, D; Meynadier, Laure M; Valet, P (1993): High-resolution stable isotope stratigraphy from bulk sediment. Paleoceanography, 8(2), 141-148, https://doi.org/10.1029/93PA00123
    Details
    Publication Date: 2023-05-12
    Description: A high-quality delta18O record has been obtained from a deep sea core in the Somali Basin in a water depth of 4020 m, well below the foraminiferal lysocline, by analyzing bulk sediment instead of picked foraminifera. In some areas this may be a valuable tool for extending the applicability of the delta18O stratigraphy, for obtaining data by a less labor-intensive procedure, and for conserving valuable core material. Additionally, we draw attention to the need for more data on delta13C in bulk carbonate if we are to fully utilize the ocean delta13C record either in relation to long-term global carbon budget, or in relation to changes in carbon cycling in the ocean and its effect on atmospheric pCO2.
    Keywords: DEPTH, sediment/rock; Marion Dufresne (1972); Mass spectrometer VG Isogas Prism; MD_1985; MD85-668; PC; Piston corer; δ13C, carbonate; δ18O, carbonate
    Type: Dataset
    Format: text/tab-separated-values, 516 data points
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  • 2
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    Pliocene stable oxygen and carbon isotope record of benthic foraminifera from ODP Site 138-846 in the eastern equatorial Pacific (1995)
    PANGAEA
    In:  Supplement to: Shackleton, Nicholas J; Hall, Michael A; Pate, D (1995): Pliocene stable isotope stratigraphy of Site 864. In: Pisias, NG; Mayer, LA; Janecek, TR; Palmer-Julson, A; van Andel, TH (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 138, 337-355, https://doi.org/10.2973/odp.proc.sr.138.117.1995
    Details
    Publication Date: 2024-01-09
    Description: Oxygen and carbon isotope ratios were measured in benthic foraminifers from the entire Pliocene and latest Miocene sections of Site 846, a 180-m section, at a sampling interval of 10 cm. This provides a temporal resolution of about 2500 yr. The documented continuity of the record is excellent. Using the time scale that was developed on the basis of orbital tuning of GRAPE density records, we observed a fairly constant phase relationship between delta18O and variations in the obliquity of Earth's rotational axis. A new numbering scheme for Pliocene isotope stages is proposed. This high-resolution delta18O record clarifies several interesting aspects of late Neogene climatic evolution, including a "glacial" event that may have caused the final Messinian desiccation of the Mediterranean Sea; one or more "interglacial" events that might have caused refilling of the Mediterranean; a well-resolved couplet of glacial events at about the age of the Sidujfall Subchron; interglacial extremes in the early part of the Gauss that could have resulted from either significant deglaciation on Antarctica or from warming of deep water; and a gradual ramp of increasingly extreme "glacial" events, starting at about the Kaena Subchron and culminating with delta18O stage 100 in the earliest Matuyama.
    Keywords: 138-846; 138-846B; 138-846C; 138-846D; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg138; Ocean Drilling Program; ODP; South Pacific Ocean
    Type: Dataset
    Format: application/zip, 5 datasets
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  • 3
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    (Table 1) Distribution of the coarse fraction at ODP Site 138-846 in the eastern equatorial Pacific (1995)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 138-846B; 138-846C; 138-846D; Depth, composite; Depth, composite revised; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Grain size, sieving; Joides Resolution; Leg138; Ocean Drilling Program; ODP; Sample code/label; Sample mass; Size fraction 〉 0.150 mm; South Pacific Ocean
    Type: Dataset
    Format: text/tab-separated-values, 14327 data points
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  • 4
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    (Table 3) Stable oxygen and carbon isotope ratios of benthic foraminifera from ODP Site 138-846 in the eastern equatorial Pacific (1995)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 138-846B; 138-846C; 138-846D; adjusted for vital effect; Cibicidoides kullenbergi, δ13C; Cibicidoides kullenbergi, δ18O; Cibicidoides spp., δ13C; Cibicidoides spp., δ18O; Cibicidoides wuellerstorfi, δ13C; Cibicidoides wuellerstorfi, δ18O; Depth, composite; Depth, composite revised; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Foraminifera, benthic δ13C; Foraminifera, benthic δ18O; Globobulimina pacifica, δ13C; Globobulimina pacifica, δ18O; Globocassidulina subglobosa, δ13C; Globocassidulina subglobosa, δ18O; Hoeglundina elegans, δ13C; Hoeglundina elegans, δ18O; Intercore correlation; Isotope ratio mass spectrometry; Joides Resolution; Leg138; Nuttallides sp., δ13C; Nuttallides sp., δ18O; Ocean Drilling Program; ODP; Oridorsalis sp., δ13C; Oridorsalis sp., δ18O; Pyrgo sp., δ13C; Pyrgo sp., δ18O; Sample code/label; Sample ID; South Pacific Ocean; Species; Sphaeroidina bulloides, δ13C; Sphaeroidina bulloides, δ18O; Uvigerina sp., δ13C; Uvigerina sp., δ18O
    Type: Dataset
    Format: text/tab-separated-values, 21670 data points
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  • 5
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    (Table 2) Foraminiferal biostratigraphic datums in ODP Site 138-846 in the eastern equatorial Pacific (1995)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 138-846; Ageprofile Datum Description; COMPCORE; Composite Core; DSDP/ODP/IODP sample designation; Joides Resolution; Leg138; Ocean Drilling Program; ODP; Sample code/label; Sample code/label 2; South Pacific Ocean
    Type: Dataset
    Format: text/tab-separated-values, 21 data points
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  • 6
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    (Table 5) Depth and age series used for time-series analysis of ODP Site 138-846 in the eastern equatorial Pacific (1995)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 138-846; AGE; COMPCORE; Composite Core; Depth, composite revised; DEPTH, sediment/rock; Joides Resolution; Leg138; Ocean Drilling Program; ODP; South Pacific Ocean; δ13C; δ18O
    Type: Dataset
    Format: text/tab-separated-values, 5998 data points
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  • 7
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    (Table 7) Interpolated time series of delta18O and delta13C data for ODP Site 138-846 as used for time series analyses (1995)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 138-846; AGE; COMPCORE; Composite Core; interpolated; Joides Resolution; Leg138; Ocean Drilling Program; ODP; South Pacific Ocean; δ13C; δ18O
    Type: Dataset
    Format: text/tab-separated-values, 2639 data points
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