Citation:

PANGAEA.973136 (dataset in review)

Name: Plio-Pleistocene planktic foraminifera oxygen and carbon stable isotopes at eastern equatorial Pacific IODP Site 321-U1338
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: 2.507813 * Median Longitude: -117.969556 * South-bound Latitude: 2.507808 * West-bound Longitude: -117.969737 * North-bound Latitude: 2.507820 * East-bound Longitude: -117.969372

Minimum DEPTH, sediment/rock: 3.78 m * Maximum DEPTH, sediment/rock: 42.72 m

Event(s):

321-U1338A * Latitude: 2.507808 * Longitude: -117.969372 * Elevation: -4210.8 m * Recovery: 345.96 m * Campaign: (Pacific Equatorial Age Transect II / Juan de Fuca) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 44 cores; 410 m cored; 84.38 % recovered; 0 m drilled; 410 m penetrated

321-U1338B * Latitude: 2.507820 * Longitude: -117.969560 * Elevation: -4209.9 m * Recovery: 417.18 m * Campaign: (Pacific Equatorial Age Transect II / Juan de Fuca) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 45 cores; 413.6 m cored; 100.87 % recovered; 2.5 m drilled; 416.1 m penetrated

321-U1338C * Latitude: 2.507812 * Longitude: -117.969737 * Elevation: -4212.7 m * Recovery: 432.48 m * Campaign: (Pacific Equatorial Age Transect II / Juan de Fuca) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 47 cores; 414.4 m cored; 104.36 % recovered; 0 m drilled; 414.4 m penetrated

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Kimble, Kristin
2	Latitude of event	Latitude		Kimble, Kristin
3	Longitude of event	Longitude		Kimble, Kristin
4	Sample code/label	Sample label		Kimble, Kristin
5	DEPTH, sediment/rock	Depth sed	m	Kimble, Kristin		Geocode
6	Depth, composite	Depth comp	mcd	Kimble, Kristin
7	AGE	Age	ka BP	Kimble, Kristin		Geocode
8	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).
9	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).
10	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).
11	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).
12	Difference	Diff		Kimble, Kristin	Calculated	Δδ18O N. dutertrei - T. sacculifer [‰ VPDB]
13	Difference	Diff		Kimble, Kristin	Calculated	Δδ13C N. dutertrei - T. sacculifer [‰ VPDB]
14	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:

2361 data points

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