摘要
金石嶂银多金属矿床赋存于震旦系云开群中亚群中岩性段中,矿体呈脉状构造赋存于大理岩夹层上、下盘的蚀变岩、蚀变碎斑岩、蚀变碎粒岩和蚀变安山岩中,银矿体主要产在硅灰石岩中。本文通过对金石嶂矿区地质特征、矿体特征分析,初步划分出金石嶂矿区的成矿期次为热液成矿期和表生成矿期,其中热液成矿期分为矽卡岩阶段、多金属硫化物阶段及碳酸盐阶段。初步探讨了金石嶂银多金属矿床的成因为接触交代热液矿床。
Jinshizhang silver polymetallic deposit occurs in the middle sub-group of sinian Yunkai group siliceous rocks, and vein- typed ore bodies are hosted in the altered rocks, located in the up and down contact belts of marble block, especially in the wollastonite rock. Based on the geological characteristics, ore characteristics, this paper concluded that two ore-forming phases and three ore-forming stages can be divided, namely hydrothermal and super genese phases, skarn, polymetaUicsulphides and carbonate phase stages respectively, and it is a contact-altered pelymetallic deposit.
出处
《露天采矿技术》
CAS
2014年第3期36-38,共3页
Opencast Mining Technology
关键词
矿体特征
成矿期次
银多金属矿床
金石嶂
ore characteristics
metallological phase and periods
silver polymetallic deposit
Jinshizhang
