关键词: 物化探特征, 铅锌矿, 矿床成因

Abstract: Caijiashan area in Qingyang County is located in the middle of the transition part between the lower Yangtze depression belt and the Jiangnan uplift belt. The Huangbailing complex anticline and the northwest wing of Niujiaoshan syncline belong to the copper-iron polymetallic metallogenic belt in the mid⁃ dle and lower reaches of the Yangtze River，which is a medium-low temperature hydrothermal lead-zinc deposit. Based on the regional metallogenic geological conditions and previous exploration results，the metallogenic geological background，geochemical characteristics and geological characteristics of ore bod⁃ ies in the region are reorganized，and the prospecting prospect is analyzed. It is found that the Ordovician Lunshan Formation in the study area is the main ore-bearing strata，the NE-trending structural fracture zone is the main channel of ore-bearing hydrothermal solution，and the Kecun granodiorite and diorite por⁃ phyrite veins are the sources of ore-bearing hydrothermal solution. Through this comprehensive study and prospecting prospect analysis，it is considered that there is a good prospecting prospect for medium-low temperature hydrothermal lead-zinc deposits in the area.

Key words: geophysical and geochemical characteristics, lead-zinc ore, ore genesis