微细浸染型金矿中原生矿石向氧化矿石转化机理探讨  

AN APPROACH TO THE MECHANISM OF TRANSFORMATION OF PRIMARY ORE INTO OXIDIZED ORE IN CARLIN-TYPE GOLD DEPOSITS

作　　者：刘显凡[1] 倪师军[2] 金景福[2] 卢秋霞[2] 张兴春[1] 

机构地区：[1]中国科学院地球化学研究所,贵阳550002 [2]成都理工学院,成都610059

出　　处：《矿物学报》1997年第4期501-506,共6页Acta Mineralogica Sinica

基　　金：中国科学矿床地球化学开放研究实验室资助;中国科学院"八五"黄金科技攻关项目

摘　　要：本文以黔西南和桂西北微细浸染型金矿为例，讨论了该类型金矿原生矿石和氧化矿石中金的赋存状态差异，并从晶体化学和地球化学角度作了赋存原理分析，进而重点探讨了两类矿石中粘土矿物的表生淋滤转化的化学模式，为开展原生矿石的选冶工艺研究提供了新的思路。Taking the Carlin-type gold deposits in southwestern Guizhou and northwestern Guangxi for example, this paper discusses the difference in existing state of gold for primary ore and oxidized ore in this type of gold deposits, and makes an analysis of the existing principle on the basis of crystal chemistry and geochemistry theories. This paper also makes an especial approach to the chemical model of clay minerals' exogenic hydrothermal solution action in the two types of ores.The results provide new thinkings for the technological process of chemical ore dressing of primary ores.

关 键 词：金矿床 原生矿石 氧化矿石 浸染型矿床 

分 类 号：P618.510.2[天文地球—矿床学]