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Shackleton, Nicholas J; Hall, Michael A; Pate, D; Meynadier, Laure M; Valet, P (1993): Stable isotopes of sediment core MD85-668. PANGAEA, https://doi.org/10.1594/PANGAEA.55508, Supplement to: Shackleton, NJ et al. (1993): High-resolution stable isotope stratigraphy from bulk sediment. Paleoceanography, 8(2), 141-148, https://doi.org/10.1029/93PA00123

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Abstract:
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.
Event(s):
MD85-668 * Elevation Start: -4020.0 m * Elevation End: 0.0 m * Campaign: MD_1985 * Basis: Marion Dufresne * Device: Piston corer (PC) * Comment: Position not given
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1DEPTH, sediment/rockDepthmGeocode
2δ18O, carbonateδ18O carb‰ PDBShackleton, Nicholas JMass spectrometer VG Isogas Prism
3δ13C, carbonateδ13C carb‰ PDBShackleton, Nicholas JMass spectrometer VG Isogas Prism
Size:
516 data points

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