安徽省东溪金矿自然重砂特征及其找矿模型  

CHARACTERISTICS OF NATURAL HEAVY CONCENTRATES OF THE DONGXI GOLD DEPOSIT IN ANHUI PROVINCE AND THE MINERAL EXPLORATION MODEL

作　　者：杨义忠[1] 王徽[1] 李明辉[1] YANG Yi-zhong;WANG Hui;LI Ming-hui(Institute of Geological Survey of Anhui Province,Hefei,Anhui 230001,China)

机构地区：[1]安徽省地质调查院,安徽合肥230001

出　　处：《安徽地质》2018年第1期33-37,42,共6页Geology of Anhui

基　　金：中国地质调查局"安徽省矿产资源潜力评价"(1212011121009)资助

摘　　要：北淮阳中生代火山岩盆地内,自然重砂自然金、辰砂、雄雌黄、重晶石等中低温矿物组合异常与火山热液型金矿密切相关,其展布与区域构造线一致,反映自然金局部富集受火山岩分布和火山构造的双重制约。盆地内自然金异常可以直接提示在矿源层中寻找原生岩金。In the Beihuaiyang Mesozoic volcanic basin,mid-low temperature mineral assemblage anomaly of natural heavy concentrates of natural gold,cinnabar,realgar,orpiment,barite,etc is closely related to volcanic hydrothermal gold deposit,and its distribution is in conformity with regional tectonic line reflecting that local enrichment of natural gold is conditioned by both volcanic rock distribution and volcanic structure.The natural gold anomaly in the basin directly indicates primary gold findable in the source bed.

关 键 词：东溪金矿 火山岩 重砂异常 找矿模型 

分 类 号：P618.51[天文地球—矿床学]