嵩县杨山—车村—方城县一带萤石矿成矿地质特征研究

Study On the Metallogenic Geological Characteristics of Fluorite Mine in Yangshan-Checun of Songxian County-Fangcheng County Area

嵩县杨山—车村及方城县一带萤石矿位于河南萤石矿北成矿亚带,为了解带内萤石矿山赋存地质特征,通过对比、分析、统计等方法研究嵩县大王沟、车村、南阳南召、方城萤石矿山矿体地质特征,表明:大王沟—车村萤石矿受鲁山—车村—庙子镇断裂构造带控制,矿体赋存于燕山期花岗岩断裂带中,成矿物质来源于燕山晚期花岗岩(合峪岩体、太山庙岩体等)热液,矿床成因属热液充填型萤石矿;南召—方城县独树镇萤石矿赋存于陶湾群和栾川群煤窑沟组,矿体受中汤—拐河断裂带和栾川明港断裂带控制,成矿物质中钙来源于陶湾群老李山组和栾川群煤窑沟组大理岩、片岩,氟来源于新元古代双山岩浆热液,经过运移—富集—交代形成了萤石矿床,矿床成因属沉积改造型。

The fluorite mine in Yangshan-Checun of Songxian Fangcheng county area is located in the north metallogenic subzone of Henan fluorite mine.To understand the geological characteristics of fluo⁃rite mines in the belt,the article studied the geological characteristics of fluorite mines throuth the methods of comparative,analysis,statistics.Research shows:fluorite mine of Dawanggou-Checun is controlled by the Lushan-Checun-Miaozi fault structure belt,the ore body occurred in the granite fault of Yanshan peri⁃od,the metallogenic source material comes from the hydrothermal of late yanshanian granites(Heyu rock mass,Taishanmiao rock mass,etc),the genesis of mineral deposit belongs to hydrothermal filling type;The fluorite mine of Nanzhao-Dushu of Fangcheng occurred in the Taowan group and Meiyaogou formation of Luanchuan group,the ore body is controlled by the Zhongtang-Guaihe fault and Minggang of Luanchuan fault,calcium is derived from the marble and schist of Laolishan formation of Taowan group and Meiyaogou formation of Luanchuan group in the metallogenic source material,fluorine is derived from the magmatic hy⁃drothermal of Shuangshan rock mass in the neoproterozoic,fluorite deposits were formed by migration-en⁃richment-metasomatism,the genesis of mineral deposit belongs to the sedimentary reworked type.