晴隆老万场红土型金矿常量元素地球化学特征及其红土化作用  

Geochemistry of Macroelements and Lateritization of Laowanchang Lateritic Gold Deposits in Qinglong,Guizhou

作　　者：陈履安 

机构地区：[1]贵州地勘局地质科学研究所,贵阳550004

出　　处：《贵州地质》1999年第4期307-314,共8页Guizhou Geology

基　　金：贵州省"九五"重点科技攻关项目!<贵州西南部红土型金矿成矿作用与分布规律研究>的部分成果

摘　　要：对晴隆老万厂金矿、喀斯特红土、相关岩石(矿石)进行了常量元素地球化学比较研究;阐明了矿床的地球化学特征。分析指出,本类红土型金矿的矿源物质是高硅质(石英SiO2)、富铁质(黄铁矿等)的富金矿(岩)石。在崩塌、垮塌后堆积于喀斯特负地形的容矿系统的漫长风化成矿过程中,除原始矿体的风化外,同时伴随和掺合着喀斯特红土的成土作用。此种作用使矿石具有红土型的特征,并对原始金矿的风化产物的金品位有贫化作用。Geochemistry of macroelements of Laowanchang gold deposit,karst laterite and related rocks or ores are studied comparely.It is indicated that source materials of type of lateritic gold deposit are rich-SiO 2 (quartz, SiO 2),rich-Fe(pyrite) and rich-Au ores or rocks.Mineralizing matter collapsed and accumulated in ore-holding system in karst negative landform is weathered in long weathering mineralization.Except weathering of original ore bodies,soil formation of karst laterite is accompanied and mixed.The process made ore possess characteristic of lateritic type.Au content of products of original Carlin type of gold ore is diluted in the process.

关 键 词：红土型金矿 常量元素 地球化学 矿床成因 金矿床 

分 类 号：P618.510.5[天文地球—矿床学]