Citation:

PANGAEA.973211 (dataset in review)

Name: Plio-Pleistocene planktic foraminifera oxygen and carbon stable isotopes at eastern equatorial Pacific ODP Site 138-846
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Carbon and oxygen stable isotopes; Eastern Equatorial Pacific; planktic foraminifera

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Abstract:

Stable carbon and oxygen isotope data from two species of planktic foraminifera (Trilobatus sacculifer and Neogloboquadrina dutertrei) are obtained for eastern equatorial Pacific (EEP) Ocean Drilling Program Site 138-846 and Integrated Ocean Drilling Program Site 321-U1338. Newly acquired stable isotope data were generated at Brown University according to sample preparation and analytical methods described in Clemens et al. (2023, doi:10.1016/j.epsl.2023.118101). The isotope data are sampled at 3-kyr resolution and span four time intervals in the Plio-Pleistocene: a Pliocene interval (3.22-3.46 Ma), a Plio-Pleistocene interval (2.50-2.78 Ma), a mid-Pleistocene interval (1.50-1.72 Ma), and a Late Pleistocene interval (420-630 ka). Zonal and vertical gradients in carbon and oxygen stable isotopes can be tracked over the four time intervals listed above.

Keyword(s):

Carbon and oxygen stable isotopes; Eastern Equatorial Pacific; planktic foraminifera

Supplement to:

Kimble, Kristin; Herbert, Timothy D (in prep.): Thermocline Steepening and Shoaling in the Eastern Equatorial Pacific Since 3.5 Ma.

Coverage:

Median Latitude: -3.096077 * Median Longitude: -90.817987 * South-bound Latitude: -3.096700 * West-bound Longitude: -90.818100 * North-bound Latitude: -3.094930 * East-bound Longitude: -90.817900

Date/Time Start: 1991-05-21T17:00:00 * Date/Time End: 1991-05-26T05:28:00

Minimum DEPTH, sediment/rock: 14.36 m * Maximum DEPTH, sediment/rock: 124.89 m

Event(s):

138-846B * Latitude: -3.094930 * Longitude: -90.817960 * Date/Time Start: 1991-05-21T17:00:00 * Date/Time End: 1991-05-24T06:08:00 * Elevation: -3295.8 m * Penetration: 422.4 m * Recovery: 373.44 m * Location: South Pacific Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 45 cores; 422.4 m cored; 0 m drilled; 88.4 % recovery

138-846C * Latitude: -3.096600 * Longitude: -90.818100 * Date/Time Start: 1991-05-24T06:08:00 * Date/Time End: 1991-05-25T02:27:00 * Elevation: -3295.8 m * Penetration: 192.5 m * Recovery: 193.1 m * Location: South Pacific Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 20 cores; 190 m cored; 0 m drilled; 101.6 % recovery

138-846D * Latitude: -3.096700 * Longitude: -90.817900 * Date/Time Start: 1991-05-25T02:27:00 * Date/Time End: 1991-05-26T05:28:00 * Elevation: -3295.8 m * Penetration: 249.4 m * Recovery: 247.85 m * Location: South Pacific Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 26 cores; 245.9 m cored; 0 m drilled; 100.8 % recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Kimble, Kristin
2	Sample code/label	Sample label		Kimble, Kristin
3	DEPTH, sediment/rock	Depth sed	m	Kimble, Kristin		Geocode
4	Depth, composite	Depth comp	mcd	Kimble, Kristin
5	AGE	Age	ka BP	Kimble, Kristin		Geocode
6	Trilobatus sacculifer, δ18O	T. sacculifer δ18O	‰ PDB	Kimble, Kristin	Isotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, MAT 253; coupled with Carbonate preparation device, Thermo Fisher Scientific, KIEL IV	[vs. VPDB]; Sample preparation and analysis according to Clemens et al. (2023, doi:10.1016/j.epsl.2023.118101).
7	Trilobatus sacculifer, δ13C	T. sacculifer δ13C	‰ PDB	Kimble, Kristin	Isotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, MAT 253; coupled with Carbonate preparation device, Thermo Fisher Scientific, KIEL IV	[vs. VPDB]; Sample preparation and analysis according to Clemens et al. (2023, doi:10.1016/j.epsl.2023.118101).
8	Neogloboquadrina dutertrei, δ18O	N. dutertrei δ18O	‰ PDB	Kimble, Kristin	Isotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, MAT 253; coupled with Carbonate preparation device, Thermo Fisher Scientific, KIEL IV	[vs. VPDB]; Sample preparation and analysis according to Clemens et al. (2023, doi:10.1016/j.epsl.2023.118101).
9	Neogloboquadrina dutertrei, δ13C	N. dutertrei δ13C	‰ PDB	Kimble, Kristin	Isotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, MAT 253; coupled with Carbonate preparation device, Thermo Fisher Scientific, KIEL IV	[vs. VPDB]; Sample preparation and analysis according to Clemens et al. (2023, doi:10.1016/j.epsl.2023.118101).
10	Difference	Diff		Kimble, Kristin	Calculated	Δδ18O N. dutertrei - T. sacculifer [‰ VPDB]
11	Difference	Diff		Kimble, Kristin	Calculated	Δδ13C N. dutertrei - T. sacculifer [‰ VPDB]
12	Difference	Diff		Kimble, Kristin	Calculated	T. sacculifer - SST δ18O [‰ VPDB]

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

2607 data points

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