Citation:

odp.proc.sr.181.203.2002

Name: (Table T1) Stable carbon and oxygen isotope ratios of benthic foraminifera in the Late Pliocene-Pleistocene section of ODP Site 181-1123 in the Southwest Pacific
Creator: Sara E Harris
Published: 2002
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Stable isotope records were generated for a late Pliocene-early Pleistocene interval from Ocean Drilling Program (ODP) Site 1123 in the southwest Pacific (41°47 S, 171°30 W; 3290 m water depth). Based on these data, new revisions were made to the shipboard splice and composite section. The isotope records will be used to evaluate the influence of North Atlantic and Southern Ocean deepwater masses on water entering the Pacific in the Deep Western Boundary Current. Three holes were cored at Site 1123, yielding a complete composite section over approximately the last 4.7 m.y. A representative spliced record (“the splice”) was developed aboard ship based on magnetic susceptibility, gamma ray attenuation bulk density, and percent reflectance data from the three adjacent holes (Carter, McCave, Richter, Carter, et al., 1999, doi:10.2973/odp.proc.ir.181.2000). No gaps in the sedimentary record were detected for the multiple-cored section of Site 1123. In addition to the isotope data, postcruise revisions to the splice and composite section based on stable isotope data are described here.

Project(s):

Ocean Drilling Program (ODP)

Coverage:

Latitude: -41.786000 * Longitude: -171.499000

Date/Time Start: 1998-09-12T00:00:00 * Date/Time End: 1998-09-24T00:00:00

Minimum DEPTH, sediment/rock: 45.34 m * Maximum DEPTH, sediment/rock: 100.05 m

Event(s):

181-1123 * Latitude: -41.786000 * Longitude: -171.499000 * Date/Time Start: 1998-09-12T00:00:00 * Date/Time End: 1998-09-24T00:00:00 * Elevation: -3290.0 m * Penetration: 1279.9 m * Recovery: 899.5 m * Location: South Pacific Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 102 cores; 957 m cored; 322.9 m drilled; 94% recovery

Comment:

Depth, sediment is the depth of each Hole (mbsf). Interspecies corrections for oxygen isotope values followed Shackleton (1974), adding 0.64 to delta18O values from Cibicides sp. An offset of -0.9 was added to delta13C values measured from Uvigerina sp. (Duplessy et al., 1984, doi:10.1016/0033-5894(84)90099-1); 0.35 was added to the delta18O value for the single Nuttalides umbonifera analyzed (Shackleton and Hall, 1984, doi:10.2973/dsdp.proc.81.116.1984). The average species offsets between C. wuellerstorfi and Uvigerina sp. that were calculated for duplicates within the Site 1123 data set are in statistical agreement with these offsets

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m			Geocode
2	Depth, composite	Depth comp	mcd	Harris, Sara E
3	Depth, composite revised	Depth comp r	rmcd	Harris, Sara E
4	Sample code/label	Sample label		Harris, Sara E	DSDP/ODP/IODP sample designation
5	Cibicides wuellerstorfi, δ13C	C. wuellerstorfi δ13C	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
6	Cibicides wuellerstorfi, δ18O	C. wuellerstorfi δ18O	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
7	Cibicides sp., δ13C	Cibicides sp. δ13C	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
8	Cibicides sp., δ18O	Cibicides sp. δ18O	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
9	Cibicides cicatricosus, δ13C	C. cicatricosus δ13C	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
10	Cibicides cicatricosus, δ18O	C. cicatricosus δ18O	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
11	Cibicides corpulentus, δ13C	C. corpulentus δ13C	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
12	Cibicides corpulentus, δ18O	C. corpulentus δ18O	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
13	Cibicides kullenbergi, δ13C	C. kullenbergi δ13C	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
14	Cibicides kullenbergi, δ18O	C. kullenbergi δ18O	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
15	Cibicides pachyderma, δ13C	C. pachyderma δ13C	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
16	Cibicides pachyderma, δ18O	C. pachyderma δ18O	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
17	Cibicides robertsonianus, δ18O	C. robertsonianus δ18O	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
18	Nuttallides umbonifera, δ13C	N. umbonifera δ13C	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
19	Nuttallides umbonifera, δ18O	N. umbonifera δ18O	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
20	Uvigerina hispida, δ13C	U. hispida δ13C	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
21	Uvigerina hispida, δ18O	U. hispida δ18O	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
22	Uvigerina peregrina, δ13C	U. peregrina δ13C	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
23	Uvigerina peregrina, δ18O	U. peregrina δ18O	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
24	Uvigerina sp., δ13C	Uvigerina sp. δ13C	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
25	Uvigerina sp., δ18O	Uvigerina sp. δ18O	‰ PDB	Harris, Sara E	Mass spectrometer Finnigan MAT 252
26	Comment	Comment		Harris, Sara E		Single individual test analyses of the size fraction >150 µm, if more than 1 individual is analysed the numbers are given in the comment. C. wuellerstorfi sp. = species uncertain, identified to genus, C. wuellerstorfi ? = uncertain, very close to C. wuellerstorfi

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

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4040 data points

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