Late glacial and holocene 10Be production rates for western Norway |
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| Authors: | Brent M Goehring Øystein Strand Lohne Jan Mangerud John Inge Svendsen Richard Gyllencreutz Joerg Schaefer Robert Finkel |
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| Institution: | 1. Department of Earth and Environmental Sciences, Lamont‐Doherty Earth Observatory, Columbia University, Palisades, NY, USA;2. Department of Earth Science, University of Bergen, Bergen, Norway;3. Bjerknes Centre for Climate Research, Bergen, Norway;4. Earth and Planetary Science Department, University of California‐Berkeley, Berkeley, CA, USA |
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| Abstract: | We present a new regional calibration of the 10Be production rate from two well‐dated surfaces in southern Norway: a rock avalanche with 14C‐dated wood and a precisely dated Younger Dryas moraine. Calculated 10Be production rates are 4.26 ± 0.13 and 4.65 ± 0.14 at g?1 a?1 for the Lal/Stone and Lifton scaling models, respectively. Our regional production rate for southern Norway is 5% lower than the canonical global 10Be production rate with lower uncertainties. Our 10Be production rate agrees with regional 10Be production rates from north‐eastern North America and New Zealand. The 10Be production rate estimate presented here can be used to improve the precision and accuracy of exposure‐dated ice‐marginal features, as well as other surfaces, in northern Europe. Copyright © 2011 John Wiley & Sons, Ltd. |
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| Keywords: | 10Be Hardangerfjord Nordfjord Norway Oldedalen production rate Scandinavia |
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