Affordable Access

Publisher Website

Billion-year age dependence of luminescence in granitic quartz

Authors
Journal
Radiation Measurements
1350-4487
Publisher
Elsevier
Publication Date
Volume
23
Identifiers
DOI: 10.1016/1350-4487(94)90074-4

Abstract

Abstract Quartz grains from granites of known age ranging from 25 to 1040 million years old (Ma) that were previously studied using electron spin resonance (ESR), have been further studied using thermoluminescence (TL) and optically stimulated (green light) luminescence (OSL). Both inadvertently light-exposed quartz grians (Q1 samples) and the same quartz grains after further controlled light exposure (Q2 samples) plus gamma dose yielded signal characteristics strongly correlated with the crystallization age of the host granite. TL peak temperature in Q1 samples was positively correlated with age, whereas an anticorrelation with age was found for the OSL response after beta dose and standard preheating to Q1 samples. Regenerated TL sensitivity was found to decline in linear fashion with age ( R 2=0.998) for Q2 samples. The various correlations with age appear better than those found previously in these samples using ESR signals. It is concluded that luminescence pathways are altered over geologic time in a similar way for all the granites, and these changes may be potentially useful as a long-ranging quartz geochronometer.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Age dependence of luminescence signals from granit...

on Quaternary Science Reviews Jan 01, 1997

[The year 2000: one billion couples of child-beari...

on Rumah Tangga Dan Kesehatan April 1988

Temperature dependence of the X-ray induced lumine...

on Journal of Physics and Chemist... Jan 01, 1993
More articles like this..