Paleomagnetic results of sixteen Black Sea cores beween 68.9 and 14.5 ka

DOI

Paleomagnetic results derived from sixteen Black Sea sediment cores. The natural remanent magnetization (NRM) and the anhysteretic remanent magnetization (ARM) were measured with a 2G Enterprises 755 SRM (cryogenic) long-core magnetometer equipped with a sample holder for eight discrete samples at a separation of 20 cm. The magnetometer's in-line tri-axial alternating field (AF) demagnetizer was used to demagnetize the NRM and ARM of the samples. The NRM was measured after application of AF peak amplitudes of 0, 5, 10, 15, 20, 30, 40, 50, 65, 80, and 100 mT. Directions of the characteristic remanent magnetization (ChRM) were determined by principle component analysis (PCA) according to Kirschvink (1980). The error range of the ChRM is given as the maximum angular deviation (MAD). The ARM was imparted along the samples' z-axis with a static field of 0.05 mT and an AF field of 100 mT. Demagnetization then was performed in steps of 0, 10, 20, 30, 40, 50, 65, and 80 mT. The median destructive field of the ARM (MDFARM) was determined to estimate the coercivity of the sediments. The slope of NRM versus ARM of common demagnetization steps was used to determine the relative paleointensity (rPI). In most cases, demagnetization steps from 20 to 65 mT were used to determine the rPI.Note, in all studied Black Sea sediment cores, samples with SIRM/κ~LF~ ratios >10 kAm^-1^ (SIRM: saturated iso-thermal remanent magnetization, κ~LF~: low-field magnetic susceptibility), empirically found to indicate the presence of diagenetically formed greigite, were omitted for paleomagnetic studies.I chrm: characteristic inclinationD chrm: characteristic declinationSlope-rPI: relative paleointensity determined by slope NRM/ARM during alternating field demagnetization; NRM: natural remanent magnetization, ARM: anhysteretic remanent magnetization

Identifier
DOI https://doi.org/10.1594/PANGAEA.919446
Related Identifier IsSupplementTo https://doi.org/10.1016/j.epsl.2018.04.014
Related Identifier IsSupplementTo https://doi.org/10.1016/j.epsl.2018.12.029
Related Identifier IsSupplementTo https://doi.org/10.1029/2019JB019225
Related Identifier IsSupplementTo https://doi.org/10.1016/j.epsl.2012.06.050
Related Identifier IsSupplementTo https://doi.org/10.1016/j.epsl.2013.09.028
Related Identifier IsSupplementTo https://doi.org/10.1016/j.epsl.2017.12.009
Related Identifier IsDocumentedBy https://doi.org/10.1111/j.1365-246X.1980.tb02601.x
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.919446
Provenance
Creator Liu, Jiabo ORCID logo; Nowaczyk, Norbert R; Arz, Helge Wolfgang ORCID logo
Publisher PANGAEA
Publication Year 2020
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 16 datasets
Discipline Earth System Research
Spatial Coverage (36.492W, 41.478S, 37.195E, 42.226N)
Temporal Coverage Begin 2007-05-28T04:08:00Z
Temporal Coverage End 2013-11-28T17:36:00Z