THE ROLE OF CSAMT IN THE EXPLORATION OF THE YUSHAN LARGE-SIZE BAUXITE DEPOSIT IN HENAN PROVINCE
MA Zhen-bo1,2, YAN Chang-hai1,2, LI Zhong-ming2, SI Fa-zhen2, LIU Bai-shun2, YANG Rui-xi2
1. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;
2. Henan Institute of Geological Survey, Zhengzhou 400051, China
Abstract：Combining the application of this method in the exploration of the Yushan large-size concealed bauxite deposit in Henan Province and the exploration characteristics of the covered mining area,this paper discusses the advantage of CSAMT for the pre-survey and survey of concealed bauxite deposits. The exploration depth of the Yushan concealed bauxite deposit in Henan Province is generally 150~700 m, which is so deep that the conventional D.C. electric sounding method cannot meet the needs. The Controlled Source Audio-frequency Magnetotellurics (CSAMT) is a new geophysical technique, and has such advantages as stronger signal, deeper exploration depth and higher resolution. Based on the inversion result of WINGLINK2D and WINGLINK1D, it can accurately reflect the characteristics of deep ore-bearing rock series, formations and structures, and optimize the layout of the project.
马振波, 燕长海, 李中明, 司法祯, 刘百顺, 杨瑞西. CSAMT在河南郁山大型隐伏铝土矿勘查中的应用[J]. 物探与化探, 2012, 36(4): 688-691.
MA Zhen-bo, YAN Chang-hai, LI Zhong-ming, SI Fa-zhen, LIU Bai-shun, YANG Rui-xi. THE ROLE OF CSAMT IN THE EXPLORATION OF THE YUSHAN LARGE-SIZE BAUXITE DEPOSIT IN HENAN PROVINCE. Geophysical and Geochemical Exploration, 2012, 36(4): 688-691.
