摘要
燕山地区中元古界碎屑岩—碳酸盐岩系内赋存着似层状金矿、古砾岩型金矿、似层状银多金属矿、层状铅锌矿、夕卡岩型铜多金属矿及火山岩型铜矿６种不同类型的矿床。古砾岩型金矿、火山岩型铜矿与层状铅锌矿分别形成于中元古宙常州沟期、大红峪期与高于庄期；似层状金矿、银多金属矿与夕卡岩型铜多金属矿则主要形成于中生代燕山期。中元古宙金多金属矿化的空间分布受同沉积构造、岩相古地理与古沉积环境等因素所制约，而燕山期金、银、多金属矿化的空间分布主要受中元古界地层层序与燕山期构造—岩浆活动所控制。
Many gold,silver and multimetal deposits,including the stratiform-like gold deposits,the palaeo-conglomerate-type gold deposits,the stratiform-like silver and multimetal deposits,the stratified lead-zinc deposits,the skarn-type copper and multimetal deposits and the marine volcanic copper deposits,are born in the Middle Proterozoic strata of Yanshan area.The palaeo-conglomerate-type gold deposits,the marine volcanic copper deposits and the stratified lead-zinc deposits were separately formed in the Changzhougou period,Dahongyu period and Gaoyuzhuang period of the Middle Proterozoic.The stratiform-like gold,silver and multimetal deposits and the skarn-type copper and multimetal deposits were mainly formed in the Mesozoic Yanshanian period.The Middle Proterozoic metallizations were mainly controlled by the syn-sedimentary faults,rock facies and palaeo-geography and the sedimentary environments.The spatial distribution of Yanshanian metallization and deposits was mainly controlled by the Middle Proterozoic stratigraphic sequence and the Yanshanian fault-magmatic activity.
出处
《地质与勘探》
CAS
CSCD
北大核心
1998年第3期10-15,共6页
Geology and Exploration
