Stein, Ruediger; Frederichs, Thomas; Fahl, Kirsten; Geibert, Walter; Matthiessen, Jens; Niessen, Frank; Vogt, Christoph; Sassenroth, Cynthia; Bazhenova, Evgenia A: Magnetostratigraphy of sediment core PS115/2_2 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.975869 (dataset in review), In: Stein, R et al.: A 430 kyrs multi-proxy record of Eurasian Ice Sheet history and organic carbon burial in the eastern Eurasian Basin, Arctic Ocean [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.975790 (dataset in review)
Abstract:
Sediment Core PS115/2-2 was recovered from the Amundsen Basin in 3600 m water depth at the eastern flank of the Gakkel Ridge during Polarstern Expedition PS115/2 in 2018 (Stein, 2019). The well-dated core is used to reconstruct in detail the interrelationship between ice-sheet dynamics and organic carbon burial in the central Eurasian Basin during the last 430 kyr, and to correlate marine and terrestrial records of the Eurasian Ice Sheet (EIS) history. Our age model, a fundamental prerequisite for any kind of paleoclimatic reconstruction, is based on magnetostratigraphy, 230Th and 231Pa excess (230Thex and 231Paex) records, and AMS14C ages. For magnetostratigraphy, we have determined records of the inclination and relative paleointensity (RPI) of the Earth's magnetic field, combined with rock magnetic measurements to assess a possible diagenetic overprint on the paleomagnetic signal (cf., Frederichs, 1995; Tauxe et al., 1995; Channell et al., 2009, 2020). For details and methods, we refer to Stein et al. (this paper).
References:
Channell, James E T; Singer, Brad S; Jicha, Brian R (2020): Timing of Quaternary geomagnetic reversals and excursions in volcanic and sedimentary archives. Quaternary Science Reviews, 228, 106114, https://doi.org/10.1016/j.quascirev.2019.106114
Channell, James E T; Xuan, Chuang; Hodell, David A (2009): Stacking paleointensity and oxygen isotope data for the last 1.5 Myr (PISO-1500). Earth and Planetary Science Letters, 283(1-4), 14-23, https://doi.org/10.1016/j.epsl.2009.03.012
Frederichs, Thomas (1995): Regionale und altersabhängige Variation gesteinsmagnetischer Parameter in marinen Sedimenten der Arktis (Regional and temporal variations of rock magnetic parameters in Arctic marine sediments). Berichte zur Polarforschung = Reports on Polar Research, 164, 212 pp, https://doi.org/10.2312/BzP_0164_1995
Stein, Ruediger (2019): The Expedition PS115/2 of the Research Vessel POLARSTERN to the Arctic Ocean in 2018. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 728, 249 pp, https://doi.org/10.2312/BzPM_0728_2019
Tauxe, Lisa; Pick, T; Kok, Y S (1995): Relative paleointensity in sediments: a pseudo-Thellier approach. Geophysical Research Letters, 22(21), 2885-2888, https://doi.org/10.1029/95GL03166
Funding:
Coverage:
Median Latitude: 81.244115 * Median Longitude: 123.481940 * South-bound Latitude: 81.244100 * West-bound Longitude: 123.479940 * North-bound Latitude: 81.244130 * East-bound Longitude: 123.483940
Date/Time Start: 2018-09-14T14:49:00 * Date/Time End: 2018-09-14T17:41:00
Minimum DEPTH, sediment/rock: 0.011 m * Maximum DEPTH, sediment/rock: 7.609 m
Event(s):
PS115/2_2-1 * Latitude: 81.244130 * Longitude: 123.479940 * Date/Time: 2018-09-14T14:49:00 * Elevation: -3665.0 m * Location: Arctic Ocean * Campaign: PS115/2 * Basis: Polarstern * Method/Device: Giant box corer (GKG)
PS115/2_2-2 * Latitude: 81.244100 * Longitude: 123.483940 * Date/Time: 2018-09-14T17:41:00 * Elevation: -3669.0 m * Location: Arctic Ocean * Campaign: PS115/2 * Basis: Polarstern * Method/Device: Box corer (BC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Stein, Ruediger | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Stein, Ruediger | Geocode | |
| 3 | AGE | Age | ka BP | Stein, Ruediger | Geocode | |
| 4 | Inclination | Incl | deg | Frederichs, Thomas | Superconducting rock magnetometer SRM755R (2G enterprises) | |
| 5 | Maximum angular deviation | MAD | deg | Frederichs, Thomas | Superconducting rock magnetometer SRM755R (2G enterprises) | |
| 6 | Natural remanent magnetization | NRM | mA/m | Frederichs, Thomas | Superconducting rock magnetometer SRM755R (2G enterprises) | |
| 7 | NRM, median destructive field of natural remanent magnetization, alternating field | MDF (NRM) | mT | Frederichs, Thomas | Calculated | |
| 8 | Anhysteretic remanent magnetization | ARM | mA/m | Frederichs, Thomas | Superconducting rock magnetometer SRM755R (2G enterprises) | |
| 9 | Anhysteretic remanent magnetization/isothermal remanent magnetization ratio | ARM/IRM | Frederichs, Thomas | Calculated | ||
| 10 | Relative paleointensity proxy | RPI | Frederichs, Thomas | Calculated | slope, ARM, 20 - 40 mT, standardized | |
| 11 | Relative paleointensity proxy | RPI | Frederichs, Thomas | Calculated | slope, IRM, 20 - 70 mT, standardized |
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:
2622 data points
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