Late Holocene paleomagnetic secular variation records of sediment cores SWERUS-L2-2-PC1 and SWERUS-L2-4-PC1 from the Chukchi Sea
Gabriel West, Matt O'Regan
Geomagnetic field directions (inclination and declination) are reconstructed for two sediment cores for the past 4200 years. The sediment cores were collected from the Chukchi Sea, Arctic Ocean during the SWERUS-C3 (Leg 2) Expedition in 2014 with Swedish icebreaker Oden.
Age models for the cores are based on radiocarbon dates, cesium-137 and mercury isochrons, and a tephra layer from the Aniakchak CFE II eruption (~3.6 ka ago).
The dataset contains Hg concentration, radiometric activity profiles of ¹³⁷Cs, ²⁴¹Am, ²¹⁰Pb, selected paleo- and rock magnetic data from sediment cores SWERUS-L2-2-PC1 and SWERUS-L2-4-PC1, and the results of a multi-parameter synchronisation of the two records.
MarineSediment coresPalaeomagnetic secular variationCesium-137 activityMercury concentrationChukchi SeaArctic OceanSWERUS-C3 expeditionIcebreaker Oden
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Citation
References
West G, Nilsson A, Geels A, Jakobsson M, Moros M, Muschitiello F, Pearce C, Snowball I, O'Regan M (in review) Late Holocene paleomagnetic secular variation in the Chukchi Sea, Arctic Ocean.
Data description
The dataset is included in five comma-separated values (csv) files. Content:
- Hg concentration, ¹³⁷Cs, ²⁴¹Am, ²¹⁰Pb activities from core SWERUS-L2-2-PC1.
- Hg concentration, ¹³⁷Cs, ²⁴¹Am, ²¹⁰Pb activities from core SWERUS-L2-4-PC1.
- Paleo- and rock magnetic data from core SWERUS-L2-2-PC1.
- Paleo- and rock magnetic data from core SWERUS-L2-4-PC1.
- Depth-depth relationship between cores SWERUS-L2-2-PC1 and 4-PC1 following MCMC synchronisation.
Comments
Coordinates of the coring sites:
- 2-PC1: 72.51658° N, 175.3196° W
- 4-PC1: 72.83833° N, 175.7267° W
More information about the SWERUS-C3 expedition is available from the Swedish Polar Research Secretariat. See also SWERUS-C3 program website, managed by the Department of Geological Sciences, Stockholm University.
Project
This study has been supported by the Swedish Research Council (grant DNR-2016-05092). Individual researchers received support from the Swedish Research Council (Jakobsson/Coxall; 2012-1680, O’Regan; 2012-3091; 2016-05092), and the Danish Council for Independent Research, Natural Sciences (Pearce, DFF-4002-00098_FNU).
Publisher
Bolin Centre Database
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First name
Gabriel
Last name or organisation
West
Email address
Address
Department of Geological Sciences; Stockholm University
Postal code
SE-106 91
City
Stockholm
Country
Sweden
GCMD science keyword
Earth science > Oceans > Marine sediments
GCMD location
Ocean > Arctic Ocean > Chukchi Sea
Dataset language
English