| 沉积物中石英ESR测年功率饱和效应的初步研究 |
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| 引用本文： | 业渝光 高钧成. 沉积物中石英ESR测年功率饱和效应的初步研究[J]. 波谱学杂志, 1993, 10(3): 315-322 |
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| 作者姓名： | 业渝光 高钧成 |
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| 作者单位： | 1. 地质矿产部海洋地质研究所, 青岛 266071;2. 中国计量科学研究院, 北京 100013 |
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| 基金项目： | 国家自然科学基金、地质行业科学技术发展基金 |
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| 摘 要： | 介绍了几组沉积物中石英ESR功率饱和效应的基础实验情况,认为在用石英进行ESR测年时,微波功率的选择是一个重要参数,它直接影响累积剂量(AD)的求取,从而严重影响测年结果。在某些特定的地质环境下(如黄土,海洋沉积物),采用比较高的微波功率,可从沉积物石英的E'心得到较老沉积物(大于50万年)可信的ESR年代。
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| 关 键 词： | ESR 微波功率 累积剂量 |
| 收稿时间： | 1992-07-06 |
PRELIMINARY RESEARCH ON EFFECT OF POWER SATURATION OF QUARTZ IN SEDIMENTS FOR ESR DATING |
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| Ye Yuguang,He die,Diao Shaobo,Gao Juncheng. PRELIMINARY RESEARCH ON EFFECT OF POWER SATURATION OF QUARTZ IN SEDIMENTS FOR ESR DATING[J]. Chinese Journal of Magnetic Resonance, 1993, 10(3): 315-322 |
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| Authors: | Ye Yuguang He die Diao Shaobo Gao Juncheng |
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| Affiliation: | 1. Institute of Marine Geology, Ministry of Geology and Mineral Resources, Qingdao 266071;2. National Institute of Metrology, Beijing 100013 |
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| Abstract: | Some basic ESR experiments on effect of power saturation of quartz in sediments were introduced. Experimental results suggest that the selection of microwave power, which directly affects the evalation of accumulated dose (AD) and seriously affects the result of ESR dating, is an important parameter. In some special geological conditions, e. g. loess and marine sediments, the reliable ESR ages can be obtained from E' centres of quartz in older sediments (>500ka) by using a higher microwave power. |
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| Keywords: | ESR Microwave power Accumulated dose |
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