湖南外生金成矿演化与找矿预测  

EXOGENETIC GOLD METALLOGENYAND METALLOGENETIC REGIONAL PREDICTION

作　　者：黎盛斯 

机构地区：[1]湖南省地质矿产厅

出　　处：《桂林工学院学报》1995年第3期223-230,共8页Journal of Guilin University of Technology

摘　　要：湖南外生金成矿普遍特征是：成矿的多期性，有５～６次较大的成矿构造期分据在１６个含矿层位；成矿的多源性，以含金石英脉为主，另有地层源，岩体源及低品位表生源；成矿的多模式，受机械－化学－生物等复合机制控制；成矿演化发生在砂金的搬运阶段，表现为金的成色、运距、时间、粒度之间的线性关系，不同构造单元的不同成矿期，其赋矿地层、矿床形态等有明显差异。依据成矿条件，提出了５个有望的外生金成矿带。Exogenetic gold metallogenesis occurring in Hunan is characterized generally by multiple mineralizations(five to six greater metallogenetic tectonic phases occurring respectively within 16 ore-bearing strata),Polymetallogenetic sources(mainly gold-bearing quartz veins, in addition, stratigraphic source, rock body source and low-grade supergene source), polymetallogenetic models(the mechanical-chemical-biological composite mechanism control),metallogenetic evolution occurring during the migration stage of gold placer(the relationship among the fineness of gold, the migration distance, time and the grain size).Gold-bearing strata and gold-orebody forms are obviously different during different metallogenetic stages in different tectonic units. On the basis of the metallogenetic condition five POtential exogenetic gold metallogenetic belts are delineated.

关 键 词：金矿床 外生矿床 成矿作用 成矿理论 找矿 

分 类 号：P618.510.5[天文地球—矿床学]