Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

von Dobeneck, Tilo; Brück, Liane (2020): Susceptibility of 21 sediment cores from Maria S. Merian cruise MSM39 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.915444

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
The sediment series recovered during MERIAN Cruise MSM 39 by gravity coring were subject to routine magnetic susceptibility loggin, which was usually performed on the closed full cores. The magnetic volume susceptibility κ of marine sediment is primarily determined by its ferrimagnetic mineral content; paramagnetic matrix components such as clays are of minor importance. As a dimensionless quantity, κ may vary from an absolute minimum value of -15∙10-6 for diamagnetic minerals (such as pure carbonate or silicate) to a maximum of some 10⋅10-3 for sediments rich in ferrimagnetic (titano-)magnetite (of as magmatic sources). Enhanced susceptibilities indicate higher concentrations of lithogenic components (here mainly magmatic-sourced, ice-rafted materials) versus diamagnetic matrix materials (calcite, quartz, water etc.). This relation is very useful for correlating sedimentary sequences deposited under similar global or regional conditions.
The GEOTEK core logger is mounted with a commercial BARTINGTON M.S.2 susceptibility meter with a 140 mm loop sensor. Due to the sensor's size, its sensitivity extends over a core interval of about 8 cm (half-width). Consequently, sharp susceptibility changes will appear smoothed in the κ core log and thin layers such as fine ice rafted debris layers cannot be appropriately resolved. In order to make an accurate end correction at the base of each segment and to assess the drift of the susceptibility meter, a spacer cylinder of 29.5 cm length was placed between each core segment during the measurement procedure. The measurements taken at the center of the spacer was used to assess and compensate the instrumental temperature drift. During post-processing all data related to void sections were removed to provide a continuous composite core log. The top and bottom ends were mirror-corrected. The systematic decline of the susceptibility signal between segment boundaries was recovered by summing the overlapping tail data leading to loss-free data sets.
Keyword(s):
Grand Banks Margin; magnetic susceptibility; MSM39; Northwest Atlantic
Supplement to:
Mulitza, Stefan; Bergmann, Fenna; Brück, Liane; Chiessi, Cristiano Mazur; Govin, Aline; Klann, Marco; Kuhnert, Henning; Lübben, Birgit; Max, Lars; Meyer, Vera D; Morard, Raphael; Müller, Vasco; Patton, Genevieve; Paul, André; Poirier, André; Riesen, Paul; Schade, Tobias; Stöber, Uwe; Völker, Georg Sebastian; Völpel, Rike; von Dobeneck, Tilo (2015): Cruise No. MSM39 - June 07-June 25, 2014 - St. John's (Canada) - St. John's (Canada). MARIA S. MERIAN-Berichte, DFG-Senatskommission für Ozeanographie, MSM39, 89 pp, https://doi.org/10.2312/cr_msm39
Project(s):
Center for Marine Environmental Sciences (MARUM)
Coverage:
Median Latitude: 46.434040 * Median Longitude: -48.102778 * South-bound Latitude: 41.876833 * West-bound Longitude: -54.761333 * North-bound Latitude: 50.205667 * East-bound Longitude: -44.167333
Date/Time Start: 2014-06-10T16:50:00 * Date/Time End: 2014-06-23T12:17:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
21 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text — use the following character encoding:

Datasets listed in this publication series

  1. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18514-2. https://doi.org/10.1594/PANGAEA.915421
  2. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18515-1. https://doi.org/10.1594/PANGAEA.915422
  3. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18516-2. https://doi.org/10.1594/PANGAEA.915423
  4. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18517-1. https://doi.org/10.1594/PANGAEA.915424
  5. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18529-2. https://doi.org/10.1594/PANGAEA.915425
  6. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18530-1. https://doi.org/10.1594/PANGAEA.915426
  7. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18531-1. https://doi.org/10.1594/PANGAEA.915427
  8. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18532-1. https://doi.org/10.1594/PANGAEA.915428
  9. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18533-2. https://doi.org/10.1594/PANGAEA.915429
  10. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18534-1. https://doi.org/10.1594/PANGAEA.915430
  11. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18549-2. https://doi.org/10.1594/PANGAEA.915431
  12. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18550-1. https://doi.org/10.1594/PANGAEA.915432
  13. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18551-2. https://doi.org/10.1594/PANGAEA.915433
  14. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18552-1. https://doi.org/10.1594/PANGAEA.915434
  15. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18553-1. https://doi.org/10.1594/PANGAEA.915435
  16. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18554-1. https://doi.org/10.1594/PANGAEA.915436
  17. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18555-1. https://doi.org/10.1594/PANGAEA.915437
  18. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18556-1. https://doi.org/10.1594/PANGAEA.915438
  19. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18557-2. https://doi.org/10.1594/PANGAEA.915439
  20. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18558-1. https://doi.org/10.1594/PANGAEA.915440
  21. von Dobeneck, T (2020): Susceptibility of sediment core GeoB18559-2. https://doi.org/10.1594/PANGAEA.915441