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 。
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 CaCO 3, CaSO 4 and BaSO 4, were produced during the formation, migration and decomposition of gas hydrates, which are crystalsof TL. Metal elements play an important role in TL operation. The results indicate a positive correlation between TL and hydrates. It is noteworthy that TL may be a very useful index for gas hydrate exploration in the future.
出处
《物探与化探》
CAS
CSCD
2002年第4期264-267,278,共5页
Geophysical and Geochemical Exploration
基金
8 63海洋领域 82 0 0 3 0 1课题
