Optical dating of single sand-sized grains of quartz: sources of variability

被引：167
作者：
Duller, GAT [1 ]
Botter-Jensen, L
Murray, AS
机构：
[1] Univ Wales, Inst Geog & Earth Sci, Aberystwyth SY23 3DB, Dyfed, Wales
[2] Riso Natl Lab, Nord Lab Luminescence Dating, DK-4000 Roskilde, Denmark
来源：
RADIATION MEASUREMENTS | 2000年 / 32卷 / 5-6期
基金：
英国自然环境研究理事会;
关键词：
D O I：
10.1016/S1350-4487(00)00055-X
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：
Optically stimulated luminescence (OSL) measurements have been made of over 3000 sand-sized grains of quartz. Analysis at this scale highlights the variability in the luminescence sensitivity and the dose saturation characteristics of individual quartz grains. Using a new instrument capable of measuring single grains it is feasible to routinely measure the equivalent dose from many hundreds of grains from each sample. Analysis of such datasets requires assessment of the uncertainties on each equivalent dose since these may vary significantly. This paper assesses the significance of signal intensity, dose saturation characteristics and instrument uncertainty in equivalent dose calculation. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：453 / 457
页数：5
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