The results of recent mineral exploration in the Yuele lead-zinc mining area of Daguan County, northeastern Yunnan province, showed that there are much early Paleozoic strata under thick late Paleozoic strata in northeastern Yunnan province, where developed some hidden salt structures (SSs), often with lead-zinc polymetallic mineralization varying degrees along the tension torsional fault (belts) or fracture (joint). The ore-bodies belong to the epigenetic hydrothermal filling vein-type deposit, and the prospecting potential is great. In this area, the superficial mineralization information displayed clear, but the deep mineralization is unknown, so the exploration work is restricted. The audio-megnetotelluric (AMT) surveying is an advantageous method to characterize the size, resistivity and skin depth of the polarizable mineral deposit concealed beneath thick overburden. This paper presents the surveying results using AMT method to evaluate the concealed lead-zinc mineralization in Yuele lead-zinc ore field, Daguancounty, NE Yunnan province, China. After comparing the interpretation result of AMT surveying data with the geological data and the drilling data, it is found that there is some distinct difference in resistivity and polarizable between ore-bodies hosted strata, upper strata and gypsum strata. The results show that AMT method is helpful to identify lead-zinc mineralization under this geological condition.
 Abedi, M., & Norouzi, G. H. (2012). Integration of Various Geophysical Data with Geological and Geochemical Data to Determine Additional Drilling for Copper Exploration. Journal of Applied Geophysics, 83, 35- 45. http://dx.doi.org/10.1016/j.jappgeo.2012.05.003
 Cagniard, Louis, (1953). Basic Theory of the Magne-totelluric Method of Geophysical Prospecting. Geophysics, 18, 605-635. http://dx.doi.org/10.1190/1.1437915
 Chen, Y. X., Di, Q. Y., & da Gama, C. D. (2009). Case studies of CSAMT Method Applied to Study of Complex Rock Mass Structure and Hidden Tectonic. World Academy of Science, Engineering and Technology, 32, 209-214.
 Dmitriev, V. I., & Berdichevsky, M. N. (1979). The Fundamental Model of Magnetotelluric Sounding. Proceedings of the IEEE (Institute of Electrical and Electronics Engineers), 67, 1034-1044. http://dx.doi.org/10.1109/PROC.1979.11386
 Gamble, T. D., Goubau, W. M., & Clarke, J. (1979a). Magnetotellurics with a Remote Magnetic Reference. Geophysics 44, 53-68. http://dx.doi.org/10.1190/1.1440923
 Gamble, T. D., Goubau, W. M., & Clarke, J. (1979b). Error Analysis for Remote Reference Magnetotellurics. Geophysics, 44, 959- 968. http://dx.doi.org/10.1190/1.1440988
 Gubins, A., & Strangway, D. W. (1978). Magnetic and Audio Frequency Magnetotelluric (AMT) Investigations at the Dumas and Viewfield, Saskatchewan Astroblemes [abs.]. Eos, Transactions, American Geophysical Union, 59, 1036.
 Hoover, D. B., Frisch-knecht, F. C., & Tippens, C. L. (1976). Audiomagnetotelluric Sounding as a Reconnaissance Exploration Technique in Long Valley, California.Journal of Geophysical Research, 81, 801-809. http://dx.doi.org/10.1029/JB081i005p00801
 Manzella, A., & Zaja, A. (2006). Volcanic Structure of the Southern Sector of Mt. Etna after the 2001 and 2002 Eruptions Defined by Magnetotelluric Measurements. Bull. Volcanol, 69, 41-50. http://dx.doi.org/10.1007/s00445-006-0054-9
 Wang, M., Fan, J. Z., Wang, Z. W., & Ma, Y. Y. (2009).Comprehensive Prospecting Model for Lead-Zinc Deposit of Huanggang-Ganzhuermiaometallogenic Belt, Inner Mongolia.Earth Science Frontiers, 16, 318-324. http://dx.doi.org/10.1016/S1872-5791(08)60112-8