黔西南地区高砷煤与金矿的成因研究  

Research on Origin between High-As Coal and Gold Deposit in Southwestern Area of Guizhou Province

作　　者：聂爱国[1] 黄志勇[2] 谢宏[2] 

机构地区：[1]昆明理工大学国土资源工程学院,昆明650039 [2]贵州大学资源与环境工程学院,贵阳550003

出　　处：《湖南科技大学学报（自然科学版）》2006年第3期21-25,共5页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：国家教育部西部人才高级访问学者重庆大学西南资源开发及环境灾害控制工程教育部重点实验室资助项目(教技厅函[2001]3号)

摘　　要：峨眉地幔热柱活动在早、晚二叠世之间喷发大规模峨眉山玄武岩浆,其间大量的As、Au及其它微量元素呈极分散均一状态进入黔西南兴义、安龙、兴仁、贞丰一带较为闭塞、台地相与台地边缘斜坡相过渡地带的龙潭组煤系地层中.在燕山期峨眉地幔热柱再次活动作用下,从峨眉山玄武岩、煤系地层中萃取大量As、Au等成矿物质形成的热液发生活化迁移,在通过煤层时As、Au在局部地段的黄铁矿中富集,形成高砷煤及金矿床.强烈的峨眉地幔热柱活动提供黔西南高砷煤、金矿形成的成矿物质来源及成矿动力来源.图3,表5,参11.Because of Emei mantle plume＇s activity,the large scale of Emeishan Basalt Magma start to gush between early and late Permian epoch;moreover, much of Au,As,Hg,Sb as well as other rare element in form of very scattered and even enters coal stratum of Longtan formation, that is closer and interim zone between platform facies and slope facies of the edge of platform in the region about Xingyi, Anlong, Xingren and Zhenfeng in southwestern of Guizhou province . Through once more process of Emei mantle plume＇s activity in Yanshan Age, the ore-forming hydrothermal solution extracting much mineralization matter （e.g. As,Au,Hg,Sb etc.） form Emeishan Basalt and coal stratum of Longtan formation appears to activation and removal, while they cross the coal beds , mineralization matter （As ,Au） deposits and accumulates in partly Pyrite of coal beds of Longtan formation,which form high- As coal and gold deposit .Intense Emei mantle plume＇s activity provides matter resource and power resource forming high- As coal and gold deposit in Southwestern of Guizhou province. 3figs., 5tabs., 11 refs.

关 键 词：高砷煤 金矿 成因 黔西南 

分 类 号：P618.11[天文地球—矿床学]