JIN Shao-rong¹, YE Lin^{2 *}, YANG De-zhi¹, HU Yu-si^{2, 3}, WEI Chen^{2, 3}, DAI De-rong¹, LI Zhen-li^{2, 3} 

(1. Institute of Geophysical and Geochemical Prospecting, Bureau of Geology and Mineral Exploration and Development of Guizhou Province, Guiyang 550018, China;
2. Stake Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China;
3. University of Chinese Academy of Sciences, Beijing 100049, China) 

Abstract: The Xiangxi-Qiandong Pb-Zn metallogenic belt is an important Pb-Zn resource base in China. The Kaili-Duyun area in Guizhou Province is the most concentrated area of the distribution of Pb-Zn deposits in the Guizhou part of this metallogenic belt. The Pb-Zn deposits (mineral occurrences) are distributed in groups and in zones. No major breakthrough has been made for the Pb-Zn geological exploration in this area due to the low level of relevant geological and geochemical researches and the unclear understanding of the genesis of the deposit. In this paper, we have summarized the characteristics of Pb-Zn mineralization, Pb-Zn resource potential and ore-controlling factors in this area, to provide ideas and basis for future geological exploration. The study shows that geological and geochemical characteristics of Pb-Zn deposits in the Kaili-Duyun area are basically consistent with those of typical MVT deposits. The stratigraphic lithology (the Lower Cambrian Qingxudong Formation dolomite) and the structure (anticline and NE-trending faults) are the most important ore-controlling factors. Pb and Zn geochemical anomalies are important prospecting indicators. The Niujiaotang, Duniu anticline, and Longjingjie-Baisong areas are favorable Pb-Zn prospecting targets in the Kaili-Duyun area.

Keywords: Pb-Zn deposit; mineralization; mineralization regularity; prospecting target; the Kaili－Duyun area