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A Direct Comparison of 14C and 230Th Ages at Searles Lake, California1

Published online by Cambridge University Press:  20 January 2017

T. -H. Peng ,
J. G. Goddard  and
W. S. Broecker
T. -H. Peng
Affiliation:
Lamont-Doherty Geological Observatory and The Department of Geological Sciences, Columbia University, Palisades, New York 10964 USA
J. G. Goddard
Affiliation:
Lamont-Doherty Geological Observatory and The Department of Geological Sciences, Columbia University, Palisades, New York 10964 USA
W. S. Broecker
Affiliation:
Lamont-Doherty Geological Observatory and The Department of Geological Sciences, Columbia University, Palisades, New York 10964 USA
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Abstract

Thorium-230 dating on saline of the Lower Salt unit in pluvial Searles Lake, California, shows that this unit was formed between 24,500 and 32,000 years ago. The initial apparent 14C age of the lake is estimated to be about 900 years. After correcting for nonradiogenic 230Th and for the initial 14C age, excellent agreement between 230Th and 14C ages is obtained. The reliability of 230Th dating on salt deposit opens a new way for continuation of absolute chronology below the Lower Salt in Searles Lake.

Type
Original Articles
Information
Quaternary Research , Volume 9 , Issue 3 , May 1978 , pp. 319 - 329
Copyright
University of Washington

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Footnotes

1

Lamont-Doherty Geological Observatory Contribution No. 2648.

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