The Application of the High-Current and Small Coil Transient Electromagnetic Method (TEM) to the Detection of Concealed Faults
详细信息
- 责任者：Yang Nonghe (Xi’an University of Technology ; Xi’an 710048 ; China) ; Wang Hui
- 刊名：Geophysical and Geochemical Exploration
- 出版年：2011
- 卷期：35(1)
- 关键词：隐伏构造 ; subsurface structure ; 瞬变电磁法 ; transient electromagnetic methods
- 页码：p.80-85
- 图表：9 illus., 12 refs.
- 分类号：1600
- issnNo：ISSN1000-8918
- isbnNo：CN11-1906/P
摘要
The transient electromagnetic method (TEM) using the high-current and small coil is a mature technology in the prospecting for metallic ore deposits and groundwater. Based on many years’ experimental studies, the authors analyzed the causes of negative value V2(Induction of secondary field) at the top of the fault and put forward the exploration and data-processing means for faults, new faults and geological collapses. This paper summarizes the method of TEM for determining concealed active faults (CAF).Drilling has demonstrated that this method is convenient in accurate determination of CAF.