绿光释光测年中基于单片技术的再生/附加法

1. 中国科学院黄土与第四纪地质国家重点实验室, 陕西西安 710054;
2. Earth Science Division, Physical Research Laboratory, Ahmedabad 380009, India

基金项目:

中国科学院资源与生态环境研究重大项目(KZ951-A1-402)及国家基金重大项目(4989417)

SINGLE ALIQUOT REGENERATIVE/ADDITIVE METHOD IN GLSL DATING OF QUARTZ

1. State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences, Xi'an Shaanxi 710054;
2. Earth Science Division, Physical Research Laboratory, Ahmedabad 380009, India

摘要: 单片技术是90年代以来光释光测年的最新手段。运用再生法进行单片技术测年所面临的主要问题是感量变化。将再生法与附加剂量法联合运用则可克服感量变化的问题。本文运用基于单片技术的再生/附加法对黄土沙漠边界带风成沉积的全新世样品进行石英绿光释光等效剂量测定。结果表明,基于单片技术的再生/附加法是石英绿光释光测年的理想方法。
- 光释光测年 /
- 单片技术 /
- 再生/附加法
Abstract: The most recent development in OSL dating is the single-aliquot method.It has a big advantage over the conventional multiple-aliquot technique.The sensitivity change in the repeated luminescence measurements is the crucial problem for this protocol.The singlealiquot regenerative/additive (SARA)method, using the regeneration and additive dose method together, can allow for the sensitivity change in the repeated luminescence measurements.In the present study, the SARA method was applied to the GLSL dating on quartz extracted from the aeolian samples from loess/desert transitional zone in China.The SARA results were in agreement with the results of the single-aliquot regenerative-dose (SAR) method and the conventional multi-aliquot additive dose method.
- OSL dating /
- the single-aliquot /
- regenerative/additive method