Measurements of238U,234U and230Th in impure carbonates for age determination

T. Ku; L. Joshi

doi:10.1007/bf02516347

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 67: Issue 2

Measurements of²³⁸U,²³⁴U and²³⁰Th in impure carbonates for age determination

Authors:

T. Ku

T. Ku University of Southern California Department of Geological Sciences 90007 Los Angeles California (USA)

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and

L. Joshi

L. Joshi University of Southern California Department of Geological Sciences 90007 Los Angeles California (USA)

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Pages:: 351–358

Online Publication Date:: 09 Jan 2007

Publication Date:: 01 Sep 1981

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02516347

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Abstract

The carbonate cements of conglomeritic deposits of late Pleistocene age have been leached with 0.2N hydrochloric acid and analyzed radiochemically. The leachate and the residue fractions were separately measured for²³⁸U,²³⁴U and²³⁰Th, using isotope-dilution and alpha-spectrometric techniques. The data are used to estimate the isotopic activities of uranium and thorium in the carbonate phase. These activities give age information for the carbonate cementation. Ages in the range of 185–320·10³ years were obtained for the samples studied.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)