广西天等砂金矿床地质特征及成因浅析  

Geological Characteristics and Genesis of the Tianzhou Gold Placer Deposits in Guangxi

作　　者：林超盛 LIN Chao-sheng(The Eighth Geological Brigade of Fujian Province,Longyan 364000,China)

机构地区：[1]福建省第八地质大队,福建龙岩364000

出　　处：《世界有色金属》2023年第11期79-81,共3页World Nonferrous Metals

摘　　要：砂金矿的探采事业在国民经济中占有重要地位,并具有良好的经济效益和社会效益。天等岩溶型砂金矿是早期远地形成的金矿体或含金矿源层裸露地表经长期风化剥蚀作用后由地下暗河中的水介质搬运迁移至岩溶漏斗、溶洞中堆积,形成岩溶充填砂金矿床。砂金的形成主要受成矿物质来源、新构造运动、气候及水动力等四个基本条件控制。The exploration and mining of placer gold mines plays an important role in the national economy and has good economic and social benefits.Tianjun karst type placer gold deposit is an early remote formed gold ore body or the exposed surface of gold bearing source layer,after long-term weathering and Denudation,transported by the water medium in the underground river to the karst funnel and karst cave for accumulation,forming a karst filled placer gold deposit.The formation of placer gold is mainly controlled by four basic conditions:mineral source,neotectonic movement,climate,and hydrodynamic forces.

关 键 词：砂金 岩溶型 风化剥蚀 暗河 岩溶漏斗 溶洞 物质来源 

分 类 号：P618.51[天文地球—矿床学]