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van der Bilt, Willem G M; Lane, Christine S (2019): Lake sediment stratigraphy, radiocarbon chronology, geochemically characterized tephra and mineralogy reveal ice-free conditions on coastal Spitsbergen during Last Glacial [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.907862, Supplement to: van der Bilt, WGM; Lane, CS (2019): Lake sediments with Azorean tephra reveal ice-free conditions on coastal northwest Spitsbergen during the Last Glacial Maximum. Science Advances, 5(10), eaaw5980, https://doi.org/10.1126/sciadv.aaw5980

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Published: 2019-10-25 • DOI registered: 2019-11-27

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Abstract:
This dataset characterizes the first pre-Holocene lake sediments from Arctic Svalbard. Three bryophyte-derived 14C ages reveal that the targeted sequences was deposited between 30 and 20 ka BP - indicating ice-free and vegetated conditions during the Last Glacial Maximum. We also fingerprint a new volcanic ash (tephra) marker, whose distinct shard maximum and homogeneous geochemistry suggest direct deposition by air fall, as well as an Azorean provenance. We also present X-Ray Diffraction (XRD) mineralogical data from the presented sediments to allay concerns about the impact of old carbon on the presented radiocarbon ages.
Coverage:
Latitude: 79.259290 * Longitude: 11.517840
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
5 datasets

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Datasets listed in this publication series

  1. van der Bilt, WGM; Lane, CS (2019): 14C ages from lake sediment core HAP0212. https://doi.org/10.1594/PANGAEA.907935
  2. van der Bilt, WGM; Lane, CS (2019): Shards biogeochemistry from the tephra horizon at 278.5 cm depth of lake sediment core HAP0212. https://doi.org/10.1594/PANGAEA.907861
  3. van der Bilt, WGM; Lane, CS (2019): Shard counts from lake sediment core HAP0212. https://doi.org/10.1594/PANGAEA.907929
  4. van der Bilt, WGM; Lane, CS (2019): XRD diffractograms of clay samples from lake sediment core HAP0212. https://doi.org/10.1594/PANGAEA.907772
  5. van der Bilt, WGM; Lane, CS (2019): XRD diffractograms of silt samples from lake sediment core HAP0212. https://doi.org/10.1594/PANGAEA.907773