滇黔桂地区微细浸染型金矿控矿地质条件分析  

GEOLOGICAL CONDITION CONTROLLING CARLIN-TYPE GOLD DEPOSITS OF YUNNAN-GUIZHOU-GUANGXI AREA

作　　者：肖荣阁[1] 陈卉泉 范军 

机构地区：[1]中国地质大学,北京100083 [2]贵州建材地质总队,贵阳550008

出　　处：《矿物学报》1998年第3期344-349,共6页Acta Mineralogica Sinica

基　　金：中国科学院矿床地球化学开放研究实验室资助

摘　　要：滇黔桂地区微细浸染型金矿是80年代以来发现的产于碳酸盐岩、碎屑岩系中的重要金矿矿化类型。本文分析认为滇黔桂地区是晚二叠世后古地块裂开形成的构造三角形裂陷盆地，印支晚期由于扬子古陆、江南地块与越北地块的聚合作用，导致形成了复杂的褶皱断裂构造体系，划分为南盘江构造域、北盘江构造域与普安－安龙构造城；含矿建造为裂陷期形成的火山碎屑岩夹的热水沉积硅质岩与沉降期形成的碎屑岩系；控制矿床、矿田分布的是基底隆起构造、不同构造域叠加构造及紧密褶皱与断裂伴生的构造。The Carlin-type gold deposits discovered in the Yunnan-Guizhou-Guangxi area in the 1980's were formed in carbonate and clastic sediment rocks. This paper shows that the YunnanGuizhou-Guangxi area was a triangle rift valley from the Late Permian to the Late Triassic, compressed to form folds and faults originated from the Yangtze,Jiangnan and Yuebei old lands, which is divided into three structural regions of Nanpanjiang, BeipanJiang and Pu'an-Anlong. Gold-bearing formations are hot -water siliceous and clastic sediment rocks. Basin base structure, the juncture of different structural regions and the connect of different structures are basic structures that control the distribution of deposits and orebodies.

关 键 词：微细浸染型 金矿床 控矿构造 

分 类 号：P618.510.2[天文地球—矿床学]