Citation:

PANGAEA.974728 (dataset in review)

Name: Paleo- and rock magentic data of core PS97/079-2
Creator: Jiabo Liu
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Antarctic; Drake Passage; paleomagnetism; rock magnetism

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Abstract:

During Expedition PS97 of the Research Vessel POLARSTERN to the Drake Passage in 2016, three sediment cores, PS97/085-3, PS97/084-1, and PS97/079-2 were collected along the Shackleton Fracture Zone. The age model of core PS97/085-3 was constructed using a combination of radiocarbon dating and tie points from paleomagnetic and environmental tuning (refer to https://doi.org/10.1594/PANGAEA.923843). The age models of cores PS97/084-1and PS97/079-2 were determined by tuning their rock magnetic parameters to those of core PS97/085-3. Rock magnetic results indicate that the magnetic minerals in the three sediments cores are dominated by (titano-)magnetite and have well-preserved geomagnetic signals. This dataset includes rock magnetic results of bulk magnetic susceptibility, anhysteretic remanent magnetization (ARM), and saturated Isothermal remanent magnetization (SIRM), and paleomagnetic results of characteristic inclination and declination, natural remanent magnetization (NRM) after alternating field (AF) field of 30 mT (NRM30mT), and relative paleointensity (RPI). RPIs are determined by NRM30mT/SIRM for cores PS97/084-1, and PS97/079-2, and by ln(NRM30mT)/ARM for core PS97/085-3.

Keyword(s):

Antarctic; Drake Passage; paleomagnetism; rock magnetism

Supplement to:

Liu, Jiabo; et al. (in review): Periodical Occurrences of the South Atlantic Anomaly over the Past 140,000 years. Nature Geoscience

Coverage:

Latitude: -60.142330 * Longitude: -58.991330

Date/Time Start: 2016-03-14T14:58:00 * Date/Time End: 2016-03-14T14:58:00

Minimum DEPTH, sediment/rock: 0.025 m * Maximum DEPTH, sediment/rock: 8.263 m

Event(s):

PS97/079-2 * Latitude: -60.142330 * Longitude: -58.991330 * Date/Time: 2016-03-14T14:58:00 * Elevation: -3541.3 m * Recovery: 8.28 m * Location: Scotia Sea * Campaign: (ANT-XXXI/3) * Basis: * Method/Device: Gravity corer (GC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	DEPTH, sediment/rock	Depth sed	m	Liu, Jiabo	Geocode
2	AGE	Age	ka BP	Liu, Jiabo	Geocode
3	ChRM, Inclination	Incl (ChRM)	deg	Liu, Jiabo
4	ChRM, Declination	Decl (ChRM)	deg	Liu, Jiabo
5	Natural remanent magnetization	NRM	10^-3 A m²	Liu, Jiabo	NRM (AF 30mT)
6	Paleointensity, J(NRM)/J(SIRM)	J(NRM)/J(SIRM)		Liu, Jiabo	RPI (NRM30mT/SIRM*460+0.5)
7	Anhysteretic Remanent Magnetization	ARM	10^-3 A m²	Liu, Jiabo
8	Saturation isothermal remanent magnetization	SIRM	10^-3 A m²	Liu, Jiabo
9	Magnetic susceptibility	MAGS	10^-6 SI	Liu, Jiabo

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:

2462 data points

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