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J Hum Evol. 2001 Jun;40(6):467-82.

Border Cave revisited: a revised ESR chronology.

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1
Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia. rainer.grun@anu.edu.au

Abstract

In view of a decade of progress in ESR dating we have revised the ESR chronology of Border Cave. A detailed gamma ray survey in 1994 and newly calculated beta attenuation data led to total dose rate estimations that are between 0 and 30% smaller than previously estimated. Accordingly, the resulting ESR age estimates are between 0 and 30% older. The ESR dates are now in good agreement with independent age estimates, particularly(14)C and amino acid racemization. New ESR dates for the lowermost dated sedimentary layer, 5 WA (white ash), indicate that the sedimentation of the sequence started around 200 ka ago.

PMID:
11371150
DOI:
10.1006/jhev.2001.0471
[Indexed for MEDLINE]
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