期刊论文

Factors Considered in Mass Spectrometric Determination in Dating Using the Thermal Ionization Mass Spectrometry Uranium Series Method

中文

质谱学报

Journal of Chinese Mass Spectrometry Society

1004-2997

2001

22

3

1-7

10.3969/j.issn.1004-2997.2001.03.001

国家自然科学基金项目“大别山超高压变质岩体矿物的钾钙同位素体系研究”(编号 :49973 0 1 1 )； 中国科技大学资源与环境基地建设项目；

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岩溶石笋、海洋珊瑚、湖泊沉积物等信息载体可以用热电离质谱(TIMS)铀系技术定年.在对大量上述信息载体进行定年的基础上,作者认为很多因素值得考虑.本文多方面分析了热电离质谱测定过程中需考虑的因素,并对这些因素的确认或解决提供对策,以期能够提高样品年龄数据的真实可靠性,为正确认识过去全球环境变化规律,准确地重建古气候并预测未来气候变化趋势服务.

Cave stalagmites,corals,lake sediments are suitable for dating using the thermal ionization mass spectrometry (TIMS)uranium series method.In mass spectrometric determination,more factors should be considered.In this paper,based on the experiments,some factors are analyzed in order to gain a perfectly correct age date.This might do good to the reorganizations of the rules of the past environmental globe changes and serve for the reconstruction of paelo...