摘要
在总结右江盆地内部丰富、翔实的区域地质和矿产资料的基础上 ,从金的物质来源、富集方式、迁移途径和沉淀机理等方面对盆地内部金矿的成因作初步探讨。认为右江地区的金主要来源于陆源碎屑沉积物和海底基性火山喷溢、喷气作用 ,生物、炭质、粘土吸附使金元素初始富集 ,生物所产生的有机质热解、分异从而导致金的络合物形成、金元素活化、运移 ,在碳酸盐台地顶部超覆面 (不整合面 )上的细碎屑岩中因物理化学条件的变化而沉淀。深大断裂的旁侧和碳酸盐台地边缘是金矿成矿的有利场所。
On the basis of summing up of abundant data of regional geology and mineral resources in the Youjiang Basin of Guangxi Zhuang Autonomous Region, Southwest China,a preliminary discussion has been made about the source, concentration models, way of transplantation of gold and origin of the gold deposits in the basin. It is concluded that gold mainly came from the crustal deposits and seafloor eruption of basic magma;adsorption of living beings, charcoal and clay sediments resulted in the preliminary enrichment of gold;biological heat decomposition and differentiation resulted in the formation of gold complex, activiation and migration of gold which deposited because of change of phyiochemical environments along the unconformity plane above the carbonate buildup, aside the deep seated faults and the margins of the carbonate buildup.
出处
《华南地质与矿产》
CAS
2002年第1期1-9,共9页
Geology and Mineral Resources of South China
