瞬变电磁法（TEM）新进展

后勤部长 · 发表于 2012-3-18 15:33

(说明：本文已被公开出版的刊物选用)

瞬变电磁法（TEM）新进展及其在寻找深部隐伏矿中的应用*

周平施俊法

（中国地质调查局发展研究中心，北京， 100083）

[摘要] 经过近半个世纪的开采，我国大部分老矿区面临着浅表矿资源日渐枯竭，接替资源严重不足的问题，为此，寻找深部隐伏矿体成为当前地质找矿的重点也是难点之一。本文介绍了瞬变电磁法（TEM），尤其是近二十年来TEM系统的主要进展，举例说明了TEM在国内外寻找深部隐伏矿中的应用效果。通过综合研究，认为TEM以其探测深度大、空间分辨率高等优势，在围岩和矿体电导性差异较为明显的地区，如铜镍硫化物等矿区，有着极为良好的深部隐伏矿找矿应用前景。

[关键词] 瞬变电磁法深部隐伏矿块状硫化物

The New Progresses in Transient Electromagnetic Method (TEM) and Their Application to Deep-concealed Ore Deposits

ZHOU Ping SHI Jun-fa

(Development and Research Centre, China Geological Survey, Beijing 100083)

Abstract: Having undergone exploitation for nearly half a century, most old mining areas in China are confronted with resource exhaustion in shallow depth areas and scarcity of replacement resources. Therefore, searching for deep-concealed ore deposits has become the highlight as well as a difficult point for current geological mineral prospecting. The paper introduces Transient Electromagnetic Method (TEM) and its progresses in the past two decades, and illustrates the application of TEM in mineral prospecting, showing advantages of this method in searching for deep-concealed ore deposits. Through integrated study, it is concluded that due to large depth of prospecting and high resolution, TEM expects a promising future for deep-concealed ore deposits prospecting in areas with evident conductive differences, such as the Cu-Ni sulphide mining area.

Key Words: Transient Electromagnetic Method (TEM) Deep-concealed Ore Deposits Massive Sulphide

* 本文受国土资源部百名优秀青年科技人才计划《地质调查关键技术发展战略研究》资助

[第一作者简介] 周平(1981年-)，男，2006年毕业于中国地震局地质研究所，硕士学位，助理工程师，现主要从事地质调查战略情报研究。

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