摘要
干沟金多金属矿床位于云南省姚安县,构造位置位于扬子板块西缘凹陷带,矿区主要出露上侏罗统妥匐组及自垩系内陆河、湖相红色含铜(银、金等)碎屑岩建造;次为第三系上新统沙沟组含盐建造。局部有火山喷发岩产出。矿化围岩以上侏罗统妥甸组泥岩、粉砂质泥岩,和白垩系高峰寺组、普昌河组、马头山组砂岩、泥岩、钙质泥岩为主,其次为火山一次火山杂岩。通过对区域成矿背景、矿区地质和矿体地质特征的分析,认为该区矿床成因是属于与斑岩有关的中低温脆性剪切带型金多金属矿床。
The Gangou Au deposit is Yaoan,Yunnan and lies in a depression on the western margin of the Yangtze plate.The Upper Jurassic and Cretaceous fluvial and lacustrine Cu-bearing formation and Tertiary saline formation as well as some extrusive rock are exposed in the ore district.The deposit is hosted in mudrock,silty mudrock,sandstone,calcareous mudstone and volcanic rock.The Gaogou Au deposit is a mesothermal to epithermal temperature brittle shear zone type Au-polymetallic deposit.
作者
周兵
唐平
惠涛
ZHOU Bing;TANG Ping;HUI Tao(Sichuan Jinsheng Mining C.,Ltd,Chengdu610091;Geophysical Exploration Team,SBGEEMR,Chengdu610072)
出处
《四川地质学报》
2017年第4期596-599,共4页
Acta Geologica Sichuan
关键词
金多金属矿
矿床成因
找矿标志
干沟
Au-polymetallic deposit
ore genesis
ore criteria
Gangou
