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Use of uranium-thorium dating to determine past C-14 reservoir effects in lakes: examples from Antarctica

Abstract:

The chronologies of many lacustrine records suffer from radiocarbon reservoir effects due to the presence of dissolved 'dead' carbon or to slow air-water exchange. Here we use the TIMS uranium-thorium disequilibrium method, in conjunction with AMS radiocarbon dating, to determine the age of lacustrine carbonates and to quantify the past radiocarbon reservoir effect in two Antarctic lakes with differing characteristics. By correcting a single-sample U/Th age for detrital contamination, a 14C o...

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Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
Journal:
EARTH AND PLANETARY SCIENCE LETTERS More from this journal
Volume:
193
Issue:
3-4
Pages:
565-577
Publication date:
2001-12-15
DOI:
ISSN:
0012-821X
Language:
English
Keywords:
Pubs id:
pubs:82326
UUID:
uuid:8947d58c-9a3b-43c6-a61f-c4281053d48b
Local pid:
pubs:82326
Source identifiers:
82326
Deposit date:
2012-12-19

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