| 磷灰石(U-Th)/He定年方法综述 |
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| 引用本文： | 蒋毅,常宏.磷灰石(U-Th)/He定年方法综述[J].岩石矿物学杂志,2012,31(5):757-766. |
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| 作者姓名： | 蒋毅 常宏 |
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| 作者单位： | 1. 中国科学院地球环境研究所,黄土与第四纪地质国家重点实验室,陕西西安710075;中国科学院研究生院,北京100049
2. 中国科学院地球环境研究所,黄土与第四纪地质国家重点实验室,陕西西安710075 |
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| 基金项目： | 国家自然科学基金中美重大国际合作项目(40921120406) |
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| 摘 要： | 磷灰石He封闭温度是目前已知定年体系中最低的,能够反映低温价段(40～90℃)的热历史信息,该方法现已成为低温热年代学领域研究的重要手段.本文概述了磷灰石(U-Th)/He定年方法的原理、校正、实验流程、应用以及存在的问题.其中,重点介绍了近几年国内外(U-Th)/He定年中辐射损伤研究的进展,主要包括以下几个方面:①辐射损伤的原理:捕获模型的提出及应用；②辐射损伤对磷灰石(U-Th)/He定年的影响；③新模型的提出:辐射损伤累积-退火模型；④辐射损伤的实际应用.
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| 关 键 词： | 磷灰石 (U-Th)/He 辐射损伤 低温热年代学 |
| 收稿时间： | 2012/1/3 0:00:00 |
| 修稿时间： | 2012/6/26 0:00:00 |
Apatite (U-Th)/He dating: A Review |
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| JIANG Yi and CHANG Hong.Apatite (U-Th)/He dating: A Review[J].Acta Petrologica Et Mineralogica,2012,31(5):757-766. |
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| Authors: | JIANG Yi and CHANG Hong |
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| Institution: | 1(1.State Key Lab of Loess and Quaternary Geology,Institute of Earth Environment,Chinese Academy of Sciences,Xi’an 710075,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | The apatite(U-Th)/He dating method has been proved to be a powerful and useful tool in the field of low-temperature thermochronology,because it has the lowest available He closure temperature and can reflect the information of the thermal histories at low temperature(40～90℃).This review gives a brief account of the principles,calibrations,laboratory procedures,applications and existing problems of the method,highlighting the progress of the study of radiation damage in recent years.The main content of this paper includes: ① the principle of the radiation damage and the development of the "trapping model";② the effect of the radiation damage on apatite(U-Th)/He dating;③ the development of the new model,i.e.,the Radiation Damage Accumulation and Annealing Model;④ the Applications of the radiation damage. |
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| Keywords: | apatite (U-Th)/He radiation damage low-temperature thermochronology |
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