Journal
RADIOCARBON
Volume 52, Issue 3, Pages 1027-1040Publisher
UNIV ARIZONA DEPT GEOSCIENCES
DOI: 10.1017/S0033822200046117
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An age-depth model for laminated sediments of Lake Soppensee is constructed using radiocarbon ages of macrofossils and a depositional model of the OxCal v 4.1 program with the updated IntCa109 data set. The resulting calendar chronology is compared with the varve chronology that was built for this record in a previous study (Hajdas 1993); there is a very good agreement between the 2 approaches. This illustrates the potential of high-resolution C-14 dating for construction of reliable, high-resolution calendar timescales for sedimentary records. Based on the age-depth model of this study, the Vasset/Killian tephra found in sediment of Soppensee dates to a calendar age of 9291-9412 cal BP (2-sigma range) while the Lachersee tephra dates to 12,735-12,871 cal BP (2-sigma range). Precise dating of the Late Glacial boundaries is possible with this chronology but requires more precise correlation between proxies and records than typically practiced.
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