Effect and Analysis of Searching for Bauxite Deposit Using Transient Electromagnetic Methodoft-com:office:office" />

• 责任者：Wang Kai (Xi’an Institute of Geology and Mineral Resources ; Xi’an ; 710054 ; China) ; Liu Kuanhou
• 刊名：Northwestern Geology
• 出版年：2010
• 卷期：43(2)
• 关键词：铝土矿 ; bauxite deposit ; 瞬变电磁法 ; transient electromagnetic methods ; 陕西 ; Shaanxi Province
• 页码：p.80-84
• 图表：4 illus., 1 table, 10 refs.
• 分类号：1600
• issnNo：ISSN1009-6248
• isbnNo：CN61-1149/P

Bauxite belongs to the weathering deposit and occurs in unconformity of weathering crust of Ordovician limestone. Transient electromagnetic (TEM) is one of effective methods to find metal ore of low-resistivity, but the fault is weak to be recognized on high-resistivity target. This is particularly true in the situation that the high-resistivity target is covered by a low resistivity body. Weibei bauxite was chosen for experiment. Based on the profile of TEM, geoelectric model, characteristics of decay curves, and resistivity section, the authrs divided interface of limestone and inferred ore-rich site. The drilling data shows that the method is feasible in searching metal mining areas. oft-com:office:office" />