Fading characteristics of martian analogue materials and the applicability of a correction procedure

被引：46

作者：

Morthekai, P. ^{[1
]}

Jain, M. ^{[1
]}

Murray, A. S. ^{[2
]}

Thomsen, K. J. ^{[1
]}

Botter-Jensen, L. ^{[1
]}

机构：

[1] Tech Univ Denmark, Riso Natl Lab, Radiat Res Dept, Roskilde, Denmark

[2] Aarhus Univ, Riso Natl Lab, Dept Earth Sci, Nordic Lab Luminescence Dating, Roskilde, Denmark

来源：

RADIATION MEASUREMENTS | 2008年 / 43卷 / 2-6期

关键词：

martian sediment dating; anomalous fading; fading correction; pulsed OSL;

D O I：

10.1016/j.radmeas.2008.02.019

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The anomalous fading of trapped charge in martian analogue materials such as basalt and andesite rock samples is measured. Optically stimulated luminescence (OSL) signals show rapid fading (of between 4% and 27% per decade). Fading rates obtained using high temperature thermoluminescence signals are smaller. The importance of knowing whether a standard fading correction method is applicable to samples of unknown age is illustrated by application to an 'infinitely old' known-age basalt, for which both the uncorrected and fading-corrected natural signals lie within the approximately linear region of the growth curve. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：672 / 678

页数：7

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