Hopkins, Becky; Xuan, Chuang; Hillenbrand, Claus-Dieter; van Peer, Tim E; Jin, Yuxi; Frederichs, Thomas; Gao, Liang; Bohaty, Steven M (2024): Relative palaeointensity stack of IODP Site 379-U1533 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971632 (DOI registration in progress)
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Abstract:
Relative palaeointensity analyses for IODP Site 379-U1533, completed in 2020-2022 at the University of Southampton. Three methods shown: natural remanent magnetisation (NRM) normalised by anhysteretic remanent magnetisation (ARM) (NRM/ARM) for the alternating field (AF) demagnetisation range 20-55 mT (preferred method for IODP Site 379-U1533 and used in further interpretations); NRM (at 20 mT AF demagnetisation) normalised by magnetic susceptibility (MS) (NRM/MS); and NRM normalised by isothermal remanent magnetisation (IRM) for the alternating field (AF) demagnetisation range 20-60 mT (NRM/IRM). All three methods show strong coherent signal suggesting an NRM signal largely consisting of a geomagnetic field component. R-values shown for analyses completed using UPmag slope method (Xuan and Channell, 2009 doi:10.1029/2009GC002584). Measurements cover the Plio-/Pleistocene period. See Hopkins et al., 2024 doi:10.1016/j.quascirev.2023.108460 for more information on data acquisition and processing.
Keyword(s):
Related to:
Hopkins, Becky; Xuan, Chuang; Hillenbrand, Claus-Dieter; van Peer, Tim E; Jin, Yuxi; Frederichs, Thomas; Gao, Liang; Bohaty, Steve M (2024): Evaluation of geomagnetic relative palaeointensity as a chronostratigraphic tool in the Southern Ocean: Refined Plio-/Pleistocene chronology of IODP Site U1533 (Amundsen Sea, West Antarctica). Quaternary Science Reviews, 325, 108460, https://doi.org/10.1016/j.quascirev.2023.108460
Funding:
Natural Environment Research Council (NERC), grant/award no. NE/M021254/1: Paleogene Climate and Deep-water Evolution in the Southwest Atlantic: Seismic Reflection and Coring Investigations in Support of IODP Proposal 862-Pre
Natural Environment Research Council (NERC), grant/award no. NE/S007210/1: INSPIRE: Interdisciplinary Southampton Partnership for Investigators Researching the Environment
Natural Environment Research Council (NERC), grant/award no. NE/T010975/1: The clay mineral footprint of the West Antarctic Ice Sheet in the Amundsen Sea during the last 6 Ma
Coverage:
Latitude: -68.066700 * Longitude: -109.000000
Minimum DEPTH, sediment/rock: 0.150 m * Maximum DEPTH, sediment/rock: 57.370 m
Event(s):
379-U1533 * Latitude: -68.066700 * Longitude: -109.000000 * Elevation: -4180.0 m * Campaign: Exp379 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Hopkins, Becky | Geocode – CCSF-M | |
| 2 | Natural remanent magnetization/anhysteretic remanent magnetization ratio | NRM/ARM | Hopkins, Becky | According to Xuan & Channell (2009) | Slope (20-55 mT) | |
| 3 | Natural remanent magnetization/anhysteretic remanent magnetization ratio | NRM/ARM | Hopkins, Becky | According to Xuan & Channell (2009) | R Value (20-55 mT) | |
| 4 | Relative paleointensity proxy | RPI | Hopkins, Becky | According to Xuan & Channell (2009) | RPI of NRM (20mT)/MS | |
| 5 | Natural remanent magnetization/isothermal remanent magnetization ratio | NRM/IRM | Hopkins, Becky | According to Xuan & Channell (2009) | Slope (20-60 mT) | |
| 6 | Natural remanent magnetization/isothermal remanent magnetization ratio | NRM/IRM | Hopkins, Becky | According to Xuan & Channell (2009) | R Value (20-60 mT) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
23710 data points
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