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Dudley, Walter C; Nelson, Campbell S (1994): (Appendix II) Stable oxygen and carbon isotope ratios for nannofossils and foraminifera from the mid-late Quaternary section at DSDP Site 90-594 east of South Island, Southwest Pacific. PANGAEA, https://doi.org/10.1594/PANGAEA.688772, In supplement to: Dudley, WC; Nelson, CS (1994): The influence of non-equilibrium isotope fractionation on the Quaternary calcareous nannofossil stable isotope signal in the southwest Pacific Ocean, DSDP Site 594. Marine Micropaleontology, 24(1), 6-27, https://doi.org/10.1016/0377-8398(94)90008-6

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Project(s):
Coverage:
Latitude: -45.523500 * Longitude: 174.948000
Date/Time Start: 1983-01-03T00:00:00 * Date/Time End: 1983-01-03T00:00:00
Minimum DEPTH, sediment/rock: 0.31 m * Maximum DEPTH, sediment/rock: 101.11 m
Event(s):
90-594_Site * Latitude: -45.523500 * Longitude: 174.948000 * Date/Time: 1983-01-03T00:00:00 * Elevation: -1204.0 m * Penetration: 11.875 m * Recovery: 4.964 m * Location: South Pacific/CONT RISE * Campaign: Leg90 * Basis: Glomar Challenger * Method/Device: Composite Core (COMPCORE) * Comment: 81 cores; 780.4 m cored; 28.8 m drilled; 63.6% recovery
Comment:
The delta18O and delta13C results for Globigerina bulloides and Uvigerina sp. from the top 100 m of core have been previously reported by Nelson et al. (1985 doi:10.1038/318361a0, 1986 doi:10.2973/dsdp.proc.90.144.1986). However, a subsequently detected calculation error with respect to the PDB standard (Cuthbertson, 1988) means that those results are consistently too light by 0.26 ‰ for delta18O and too heavy by 0.87 ‰ for delta13C. For original data see Nelson et al. (1986) doi:10.1594/PANGAEA.688751. Weight correction factor (Sigma f) corrects the species-depending fractionation factors ranging from +1.6 ‰ to -2.5 ‰ for different coccolithophore species. Sigma f = (-1.2a-1.6b+2.5c+2.5d+2.2e-1.6g)/100, with a b c d e g represents estimates of the weigth percent of species. a = gephyrocapsids, b = Emiliana huxleyi, c = Calcidiscus leptoporus, d = Umbilicosphaera sp., e = Syracosphaera sp., g = Pseudoemiliana lacunosa (see Dudley and Nelson, 1989 doi:10.1016/0377-8398(89)90025-X)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepthmGeocode
2Sample code/labelSample labelDudley, Walter CDSDP/ODP/IODP sample designation
3δ18O, carbonateδ18O carb‰ PDBDudley, Walter CMass spectrometer VG Micromass 602Calcareous nannofossils, raw values
4δ18O, reconstructedδ18O reconDudley, Walter CCalculatedSigma f, calcareous nannofossils
5δ18O, adjusted/correctedδ18ODudley, Walter CCalculatedVea d18O, vital effect adjustment, calcareous nannofossils
6δ13C, carbonateδ13C carb‰ PDBDudley, Walter CMass spectrometer VG Micromass 602calcareous nannofossils
7Globigerina bulloides, δ18OG. bulloides δ18O‰ PDBDudley, Walter CMass spectrometer VG Micromass 602
8Globigerina bulloides, δ13CG. bulloides δ13C‰ PDBDudley, Walter CMass spectrometer VG Micromass 602
9Uvigerina sp., δ18OUvigerina sp. δ18O‰ PDBDudley, Walter CMass spectrometer VG Micromass 602
10Uvigerina sp., δ13CUvigerina sp. δ13C‰ PDBDudley, Walter CMass spectrometer VG Micromass 602
Size:
1880 data points

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