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Thermoluminescence of laterites: applicability in dating

Conference:

Abstract

The northward drift of the Indian subcontinent during the past geological periods brought it under the spell of humid tropical climate in post-mesozoic times which initiated chemical weathering processes (lateritization) of the ancient crustal rocks leading to neomineralization. In the present study, thermoluminescence (TL) of these 'later-formed minerals' has been used to date laterites from a number of localities in India. While the TL emission of most of the laterite samples was poor, three from Kerala, Tamil Nadu and Karnataka states, each derived from mineralogically dissimilar parent rock, yielded measurable TL and provided dates in the range of 2 to 3.6 x 10/sup 5/ yr. It is suggested that TL dating can be a promising tool for such samples, and especially those with low alpha activity (U, Th at sub-ppm levels).
Publication Date:
Jan 01, 1985
Product Type:
Conference
Report Number:
CONF-840290-
Reference Number:
AIX-17-015449; EDB-86-055467
Resource Relation:
Journal Name: Nucl. Tracks; (United Kingdom); Journal Volume: 10:1-2; Conference: National symposium on thermally stimulated luminescence and related phenomena, Ahmedabad, India, 1 Feb 1984
Subject:
58 GEOSCIENCES; CLAYS; AGE ESTIMATION; THERMOLUMINESCENCE; EROSION; GEOLOGY; INDIA; ROCKS; ASIA; DEVELOPING COUNTRIES; LUMINESCENCE; 580100* - Geology & Hydrology- (-1989)
OSTI ID:
6381754
Research Organizations:
Bhabha Atomic Research Centre, Bombay, India. Spectroscopy Div.; Bhabha Atomic Research Centre, Bombay, India. Health Physics Div.
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: NUTRD
Submitting Site:
INIS
Size:
Pages: 177-183
Announcement Date:
May 13, 2001

Conference:

Citation Formats

Sankaran, A V, Nambi, K S.V., and Sunta, C M. Thermoluminescence of laterites: applicability in dating. United Kingdom: N. p., 1985. Web.
Sankaran, A V, Nambi, K S.V., & Sunta, C M. Thermoluminescence of laterites: applicability in dating. United Kingdom.
Sankaran, A V, Nambi, K S.V., and Sunta, C M. 1985. "Thermoluminescence of laterites: applicability in dating." United Kingdom.
@misc{etde_6381754,
title = {Thermoluminescence of laterites: applicability in dating}
author = {Sankaran, A V, Nambi, K S.V., and Sunta, C M}
abstractNote = {The northward drift of the Indian subcontinent during the past geological periods brought it under the spell of humid tropical climate in post-mesozoic times which initiated chemical weathering processes (lateritization) of the ancient crustal rocks leading to neomineralization. In the present study, thermoluminescence (TL) of these 'later-formed minerals' has been used to date laterites from a number of localities in India. While the TL emission of most of the laterite samples was poor, three from Kerala, Tamil Nadu and Karnataka states, each derived from mineralogically dissimilar parent rock, yielded measurable TL and provided dates in the range of 2 to 3.6 x 10/sup 5/ yr. It is suggested that TL dating can be a promising tool for such samples, and especially those with low alpha activity (U, Th at sub-ppm levels).}
journal = {Nucl. Tracks; (United Kingdom)}
volume = {10:1-2}
place = {United Kingdom}
year = {1985}
month = {Jan}
}