AMS-dating of Late Pleistocene and Holocene syngenetic ice-wedges

YK Vasil'chuk*, J van der Plicht, H Jungner, AC Vasil'chuk, Yurij K. Vasil'chuk, Alla C. Vasil'chuk

*Corresponding author for this work

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Abstract

We discuss the C-14 dating (both conventional and AMS) of Siberian permafrost sediments and ice-wedge ice. Direct dating of Late Pleistocene and Holocene syngenetic ice-wedges was done on organic material included in the ice. The time of ice formation (in C-14 years) is 21,000-14,000 BP for Seyaha, and 7100 BP for Shchuch'ya. The AMS dates show that the ice-wedges stratification is normal, i.e., the older ice is located below the younger. The C-14 dates yield for the first time a timescale (in C-14 years) for paleoclimatic indicators (oxygen and hydrogen isotope ratios from the ice). (C) 2000 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Pages (from-to)637-641
Number of pages5
JournalNuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms
Volume172
Issue number1
DOIs
Publication statusPublished - Oct-2000
Event8th International Conference on Accelerator Mass Spectrometry - , Austria
Duration: 6-Sep-199910-Sep-1999

Keywords

  • AMS C-14-dating
  • syngenetic ice-wedges
  • Late Pleistocene
  • Holocene

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