地质与勘探2001,Vol.37Issue(2):23-27,5.
吉林夹皮沟断裂带动力系统碰撞、叠加及金矿床形成
DYNAMIC SYSTEM COLLISION,SUPERIMPOSING AND GOLD DEPOSIT FORMING IN JIAPIGOU FAULT BELT,JILIN PROVINCE
摘要
Abstract
Dynamic system is the sdudying key in gold metallization. Itcontrols gold deposit forming all the time. Earth evolution and gold metallization in Jiapigou area are divided into three stages and three kinds of tectonic belts with the help of metallogenic dynamic system theory. The first one is the marginal gold mineralizing belt of rising-slipping dynamic system in the Archean-Proterozoic craton. A pair of dynamic system between uplifting Archean craton and extending or slipping Proterozoic sediments formed gold mineralizing ductile shear belts of the craton margin and then gold enriched initially. Dynamic system of the hercynian subduction is the second kind of the south margin mineralizing belt. Continental rift and collision took place between Siberia plate and Chinese-Korea plate. The positive-negative dynamic system formed over earth crust-fault and gold mineralizes.The Mesozoic superimposing tectono-magmatic dynamic system forms the third kind of metallogenic belt. The Mesozoic Pacific plate subduction, TanLu fault slipping , NNE and NW striked conjugate ore-controlling structure form poly-level dynamic system superimposing. Magma activities and mantle origin fluid go up. Gold further enrich. Finally form Jiapigou gold deposit.The limits of metallogenic prognosis are that original metamorphic rock's area enter Jiapigou fault belt and the Mesozoic granite area by both sides of Jiapigou fault.关键词
动力系统/碰撞/叠加/金矿床/吉林分类
天文与地球科学引用本文复制引用
孙忠实,冯本智,邓军,翟裕生..吉林夹皮沟断裂带动力系统碰撞、叠加及金矿床形成[J].地质与勘探,2001,37(2):23-27,5.基金项目
国土资源部变质动力开放实验室联合资助项目部分成果. ()