Citation:

PANGAEA.988310 (DOI registration in progress)

Name: Agulhas Plateau Composite Pleistocene planktic-benthic stable isotope measurements
Published: 2026-01-16
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Paleoceanography; Pleistocene; stable isotope data

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Published: 2026-01-16

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Abstract:

Reconstructions of vertical stable carbon isotope gradient since 1.55 myr ago from the Agulhas Plateau Composite deep sea sediment core site. Stable isotopes (18O and 13C measured on planktic foraminifera species G. truncatulinoides, n = 3 to 15 shells per sample). Isotope measurements are paired with previously published benthic d18O and d13C data from the sample site to generate gradients.

Keyword(s):

Paleoceanography; Pleistocene; stable isotope data

Supplement to:

Starr, Aidan; et al. (accepted): Southern Ocean vertical carbon stratification across the Mid-Pleistocene Transition.

Source:

Starr, Aidan; Hall, Ian R; Barker, Stephen; Nederbragt, Alexandra J; Owen, Lindsey; Hemming, Sidney R (2025): Shifting Antarctic Circumpolar Current south of Africa over the past 1.9 million years. Science Advances, 11(1), eadp1692, https://doi.org/10.1126/sciadv.adp1692

Ziegler, Martin; Diz, Paula; Hall, Ian R; Zahn, Rainer (2013): Millennial-scale changes in atmospheric CO2 levels linked to the Southern Ocean carbon isotope gradient and dust flux. Nature Geoscience, 6(6), 457-461, https://doi.org/10.1038/ngeo1782

References:

Expedition 361 Science Party; Starr, Aidan; Hall, Ian R; Barker, Stephen; Rackow, Thomas; Zhang, Xu; Hemming, Sidney R; van der Lubbe, H J L; Knorr, Gregor; Berke, Melissa A; Bigg, Grant R; Cartagena-Sierra, Alejandra; Jiménez-Espejo, Francisco Jose; Gong, Xun; Gruetzner, Jens; Lathika, Nambiyathodi; LeVay, Leah J; Robinson, Rebecca S; Ziegler, Martin (2021): Antarctic icebergs reorganize ocean circulation during Pleistocene glacials. Nature, 589(7841), 236-241, https://doi.org/10.1038/s41586-020-03094-7

Coverage:

Median Latitude: -41.304226 * Median Longitude: 25.390264 * South-bound Latitude: -41.427000 * West-bound Longitude: 25.261000 * North-bound Latitude: -41.200000 * East-bound Longitude: 25.500000

Date/Time Start: 2002-10-01T00:00:00 * Date/Time End: 2016-02-27T04:15:00

Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 44.145 m

Event(s):

361-U1475B * Latitude: -41.427000 * Longitude: 25.261000 * Date/Time: 2016-02-24T01:55:00 * Elevation: -2680.5 m * Penetration: 243.9 m * Recovery: 250.31 m * Campaign: (South African Climates (Agulhas LGM Density Profile)) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 26 cores, 0 m drilled, 103% recovery

361-U1475C * Latitude: -41.427000 * Longitude: 25.261000 * Date/Time: 2016-02-25T04:55:00 * Elevation: -2680.4 m * Penetration: 275 m * Recovery: 280.7 m * Campaign: (South African Climates (Agulhas LGM Density Profile)) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 29 cores, 3 m drilled, 103% recovery

361-U1475E * Latitude: -41.427000 * Longitude: 25.261000 * Date/Time: 2016-02-27T04:15:00 * Elevation: -2682.9 m * Penetration: 277 m * Recovery: 277.2 m * Campaign: (South African Climates (Agulhas LGM Density Profile)) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 29 cores, 6.5 m drilled, 102% recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Starr, Aidan
2	LATITUDE	Latitude		Starr, Aidan		Geocode
3	LONGITUDE	Longitude		Starr, Aidan		Geocode
4	DATE/TIME	Date/Time		Starr, Aidan		Geocode
5	Sample code/label	Sample label		Starr, Aidan
6	DEPTH, sediment/rock	Depth sed	m	Starr, Aidan		Geocode – Stratigraphic depth of each sample given on the orgiinal core scale (rather than the composite "spliced" scale refered to as the Agulhas Plateau Composite or APcomp).
7	Depth, composite	Depth comp	mcd	Starr, Aidan		Stratigraphic depth of each sample on the "spliced" composite depth scale (Agulhas Plateau Composite). Created by combining the MD02-2588 and Site 361-U1475 depth scales at the point where they are spliced.
8	AGE	Age	ka BP	Starr, Aidan	Age model according to Lisiecki & Raymo (2005) [LR04]	Geocode – Sample age in thousand years (ka) according to the LR04 timescale publisbed by Starr et al. (2021, doi:10.1038/s41586-020-03094-7) for the Agulhas Plateau composite.
9	Cibicides wuellerstorfi, δ18O	C. wuellerstorfi δ18O	‰ PDB	Starr, Aidan	see comment	vs. VPDB. MD02-2588 from Ziegler et al. (2013, doi:10.1038/ngeo1782). Site 361-U1475 from Starr et al. (2021, doi:10.1038/s41586-020-03094-7).
10	Cibicides wuellerstorfi, δ13C	C. wuellerstorfi δ13C	‰ PDB	Starr, Aidan	see comment	vs. VPDB. MD02-2588 from Ziegler et al. (2013, doi:10.1038/ngeo1782). Site 361-U1475 from Starr et al. (2021, doi:10.1038/s41586-020-03094-7).
11	Globorotalia truncatulinoides, δ18O	G. truncatulinoides δ18O	‰ PDB	Starr, Aidan	see comment	vs. VPDB. MD02-2588 from Ziegler et al. (2013, doi:10.1038/ngeo1782). New Site 361-U1475 data are from Starr et al. (2024).
12	Globorotalia truncatulinoides, δ18O	G. truncatulinoides δ18O	‰ PDB	Starr, Aidan	see comment	Upper Confidence Interval, vs. VPDB. MD02-2588 from Ziegler et al. (2013, doi:10.1038/ngeo1782). New Site 361-U1475 data are from Starr et al. (2024).
13	Globorotalia truncatulinoides, δ18O	G. truncatulinoides δ18O	‰ PDB	Starr, Aidan	see comment	Lower Confidence Interval, vs. VPDB. MD02-2588 from Ziegler et al. (2013, doi:10.1038/ngeo1782). New Site 361-U1475 data are from Starr et al. (2024).
14	Globorotalia truncatulinoides, error	G. truncatulinoides e	±	Starr, Aidan	see comment	Standard Error of the Mean, vs. VPDB. MD02-2588 from Ziegler et al. (2013, doi:10.1038/ngeo1782). New Site 361-U1475 data are from Starr et al. (2024).
15	Globorotalia truncatulinoides, δ13C	G. truncatulinoides δ13C	‰ PDB	Starr, Aidan	see comment	vs. VPDB. MD02-2588 from Ziegler et al. (2013, doi:10.1038/ngeo1782). New Site 361-U1475 data are from Starr et al. (2024).
16	Globorotalia truncatulinoides, δ13C	G. truncatulinoides δ13C	‰ PDB	Starr, Aidan	see comment	Upper Confidence Interval, vs. VPDB. MD02-2588 from Ziegler et al. (2013, doi:10.1038/ngeo1782). New Site 361-U1475 data are from Starr et al. (2024).
17	Globorotalia truncatulinoides, δ13C	G. truncatulinoides δ13C	‰ PDB	Starr, Aidan	see comment	Lower Confidence Interval, vs. VPDB. MD02-2588 from Ziegler et al. (2013, doi:10.1038/ngeo1782). New Site 361-U1475 data are from Starr et al. (2024).
18	Globorotalia truncatulinoides, error	G. truncatulinoides e	±	Starr, Aidan	see comment	Standard Error of the Mean, vs. VPDB. MD02-2588 from Ziegler et al. (2013, doi:10.1038/ngeo1782). New Site 361-U1475 data are from Starr et al. (2024).

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

19739 data points

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