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A new Scandinavian reference Be-10 production rate
Stockholm University, Faculty of Science, Department of Physical Geography.
Stockholm University, Faculty of Science, Department of Physical Geography.
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Number of Authors: 7
2015 (English)In: Quaternary Geochronology, ISSN 1871-1014, E-ISSN 1878-0350, Vol. 29, 104-115 p.Article in journal (Refereed) Published
Abstract [en]

An important constraint on the reliability of cosmogenic nuclide exposure dating is the rigorous determination of production rates. We present a new dataset for Be-10 production rate calibration from Mount Billingen, southern Sweden, the site of the final drainage of the Baltic Ice Lake, an event dated to 11,620 +/- 100 cal yr BP. Five samples of flood-scoured bedrock surfaces (58.5 degrees N, 13.7 degrees E, 105-120 m a.s.I.) unambiguously connected to the drainage event yield a reference Be-10 production rate of 4.19 +/- 0.20 atoms g(-1) yr(-1) for the CRONUS-Earth online calculator Lm scaling and 4.02 +/- 0.18 atoms g(-1) yr(-1) for the nuclide specific LSDn scaling. We also recalibrate the reference Be-10 production rates for four sites in Norway and combine three of these with the Billingen results to derive a tightly clustered Scandinavian reference Be-10 production rate of 4.13 +/- 0.11 atoms g(-1) yr(-1) for the CRONUS Lm scaling and 3.95 +/- 0.10 atoms g(-1) yr(-1) for the LSDn scaling scheme.

Place, publisher, year, edition, pages
2015. Vol. 29, 104-115 p.
Keyword [en]
Cosmogenic exposure dating, Be-10 production rate, Fennoscandian Ice Sheet, Deglaciation chronology, Baltic Ice Lake, Younger Dryas
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-120074DOI: 10.1016/j.quageo.2015.06.011ISI: 000358629300011OAI: oai:DiVA.org:su-120074DiVA: diva2:852231
Available from: 2015-09-08 Created: 2015-09-01 Last updated: 2017-12-04Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • Other style
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  • de-DE
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