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Geological Feature and Ore-Controlling Factors of Kaladawan Copper-Polymetal Deposit in Northern Side of Altyn Fault, Xinjiang
Author(s): 
Pages: 118-124
Year: Issue:  2
Journal: JOURNAL OF EARCH SCIENCES AND ENVIRONMENT

Keyword:  阿尔金断裂北缘双峰式火山岩间歇式喷发期成矿条件控矿因素;
Abstract: 通过对区域含矿岩系、火山作用、构造演化与矿产等开展地质调查表明:这些矿床产于塔里木地块古陆缘红柳沟-拉配泉元古代裂谷带、喀腊达坂大断裂北侧,含矿地层为蓟县系卓阿布拉克组变质火山岩,具有典型的双峰式火山岩建造特点,成矿作用发生于火山喷发旋回的间歇期.通过对典型矿床喀腊大湾铜多金属矿床地质特征及控矿因素研究,表明该矿床具明显的矿化分带和蚀变分带,δ(34S)测定反映硫大部分来源于海水,成因类型属与海相火山作用有关的喷气喷流型硫化物矿床,该矿床的主要控矿因素为海相沉积地层、火山喷发的间歇期和断裂构造等,变质作用对成矿有一定的富集作用.
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