Citation:

PANGAEA.982690

Name: Counts and 230Thxs-normalized fluxes of ice-rafted detritus (IRD) in sediment core PS58/270-5
Published: 2025-12-19
License: https://creativecommons.org/licenses/by/4.0/
Keywords: glacial-interglacial changes; iron fertilization; particle fluxes; Pleistocene; Southern Ocean; WAIS

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Published: 2025-12-19

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Abstract:

This dataset contains counts and 230Thxs-normalized fluxes (doi:10.1594/PANGAEA.983125) of >250 µm grains in sediment core PS58/270-5 collected during R/V Polarstern expedition ANT-XVIII/5a in 2001 (Miller, 2001) using X-ray radiography. These grains indicate the deposition of ice rafted debris (IRD) at site PS58/270. The reported age model is derived from diatom-based stratigraphy and correlation of the summer sea surface temperature (SSST) and Fe content with EDC ice core data (doi:10.1594/PANGAEA.983158). This dataset uses a revised stratigraphy as section 1995-2095 cm was curated in reverse order.

Keyword(s):

glacial-interglacial changes; iron fertilization; particle fluxes; Pleistocene; Southern Ocean; WAIS

Related to:

Struve, Torben; et al. (accepted): South Pacific carbon uptake controlled by West Antarctic Ice Sheet dynamics.

Struve, Torben; Lamy, Frank; Gäng, Frederik; Klages, Johann Philipp; Kuhn, Gerhard; Esper, Oliver; Lembke-Jene, Lester; Winckler, Gisela (2025): Age model for sediment core PS58/270-5 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.983158

Struve, Torben; Lamy, Frank; Gäng, Frederik; Klages, Johann Philipp; Kuhn, Gerhard; Esper, Oliver; Lembke-Jene, Lester; Winckler, Gisela (2025): Major and trace element concentrations and 230Thxs-normalized fluxes for sediment core PS58/270-5 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.983125

References:

Miller, Heinrich (2001): Expedition Programme No. 59. RV POLARSTERN. ANT XVIII/5a. ANT XVII1/5b. Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung Bremerhaven (in German), hdl:10013/epic.37242.d001

Funding:

German Research Foundation (DFG), grant/award no. 412785502 : Glacial - Interglacial Changes in Dust Supply to the Pacific Southern Ocean

Coverage:

Latitude: -62.028000 * Longitude: -116.123000

Date/Time Start: 2001-03-19T18:34:00 * Date/Time End: 2001-03-19T20:01:00

Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 22.905 m

Event(s):

PS58/270-5 * Latitude: -62.028000 * Longitude: -116.123000 * Date/Time Start: 2001-03-19T18:34:00 * Date/Time End: 2001-03-19T20:01:00 * Elevation: -4981.0 m * Recovery: 22.95 m * Location: Southeast Pacific * Campaign: (PS58) * Basis: * Method/Device: Piston corer (BGR type) (KL) * Comment: 23 core sections: 0-0.95, 0.95-1.95, 1.95-2.95, 2.95-3.97, 3.97-4.97, 4.97-5.97, 5.97-6.97, 6.97-7.97, 7.97-8.97, 8.97-9.97, 9.97-10.97, 10.97-11.97, 11.97-12.97, 12.97-13.95, 13.95-14.95, 14.95-15.95, 15.95-16.95, 16.95-17.95, 17.95-18.95, 18.95-19.95, 19.95-20.95, 21.95-22.95 m

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Klages, Johann Philipp
2	DEPTH, sediment/rock	Depth sed	m	Klages, Johann Philipp		Geocode
3	Depth, top/min	Depth top	m	Klages, Johann Philipp
4	Depth, bottom/max	Depth bot	m	Klages, Johann Philipp
5	AGE	Age	ka BP	Struve, Torben		Geocode – See Struve et al., under review and doi:10.1594/PANGAEA.983158
6	Ice rafted debris, size fraction > 250 µm	IRD >250 µm	#/10 cm³	Klages, Johann Philipp	X-ray radiography
7	Ice rafted debris, size fraction > 250 µm	IRD >250 µm	#/10 cm³	Struve, Torben	Calculated	3 pt running average
8	Ice rafted debris, flux	IRD flux	#/cm²/ka	Struve, Torben	Calculated	Calculated using 230Thexcess derived mass fluxes (Struve et al., under review and doi:10.1594/PANGAEA.983125)

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:

10922 data points

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