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| 海洋沉积物热释光——潜在的天然气水合物找矿方法 | |
| 引用本文： | 刘海生,王南萍,侯胜利,余慧,余钦范,程业勋,李家熙.海洋沉积物热释光——潜在的天然气水合物找矿方法[J].物探与化探,2002,26(4):264-267,278. |
| 作者姓名： | 刘海生 王南萍 侯胜利 余慧 余钦范 程业勋 李家熙 |
| 作者单位： | [1]中国地质大学，北京100083 [2]中国地质科学院地球物理地球化学勘查研究所，河北廓坊065000 |
| 基金项目： | 863海洋领域8200301课题 |
| 摘 要： | 概述了热释光的形成机理。从放射性方法探测油气藏的原理出发,提出了海洋沉积物热释光探测天然气水合物的可能性。对采自中国南海、东海的海底沉积物进行了有机烃、金属元素和热释光分析。结果表明,热释光与有机烃类呈正相关,天然气水合物形成和分解产生的碳酸钙、硫酸钙及硫酸钡沉淀是很好的热释光晶体,在矿物结晶过程中加入的微量金属元素对热释光起到调节作用。热释光不受有机污染的影响,灵敏度高,是很有前景的寻找天然气水合物的方法。 |
| 关 键 词： | 海洋 热释光 天然气水合物 |
| 收稿时间： | 2002-03-10 |
THERMOLUMINESCENCE OF OFFSHORE SEDIMENTS-A POTENTIAL METHOD FOR GAS HYDRATE EXPLORATION |
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| Institution: | 1. China University of Geosciences, Beijing 100083, China;; 2. Institute of Geophysical and Geochemical Exploration, CAGS, Langfang 065000, China; 3. National Research Center of Geoanalysis, Beijing 100037, China |
| Abstract: | In this paper, the mechanism of Thermoluminescence (TL) has been described. Sampling was carried out in the South China Sea and the East China Sea. Some indicator minerals, such as CaCO3, CaSO4 and BaSO4, were produced during the formation, migration and decomposition of gas hydrates, which are crystalsof TL. Metal elements play an important role in TLoperation. The results indicate a positive correlation between TLand hydrates. It is noteworthy that TLmay be a very useful index for gas hydrate exploration in the future. |
| Keywords: | offshore thermoluminescence gas hydrate |
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