黔西南赖子山背斜区金矿床地质特征及成矿规律研究  

Study on geological features and metallogenic regularity of gold deposits in the Laizishan anticline area in southwestern Guizhou

作　　者：罗建均[1] Luo Jianjun(No.117 Geological Team,Guizhou Bureau of Exploration and Development of Geology and Mineral Resources)

机构地区：[1]贵州省地质矿产勘查开发局117地质大队

出　　处：《黄金》2018年第3期15-20,共6页Gold

基　　金：贵州省地质矿产勘查开发局2016年地质科研项目(黔地矿科合[2016]46号)

摘　　要：赖子山背斜区位于黔西南卡林型金矿集区中部,区内成矿条件优越。对赖子山背斜区内9个金矿床(点)的地质特征进行分析研究,并归纳总结了成矿规律。结果表明:研究区内金矿成矿对地层没有专属性,对岩性组合有选择;区内容矿、控矿构造分为断裂构造和界面构造2类,且以断裂构造为主,主要有北东向和北西向2组;矿体的富集及变化受构造组合、构造应变强弱、岩性组合和渗透层(障)与不渗透层(障)组合共同控制。并指出赖子山背斜东翼成矿条件优于背斜西翼及背斜核部,下一步找矿选区应重点放在赖子山背斜东翼。The Laizishan anticline area is located in the center of carlin type gold deposit concentration area in southwestern Guizhou.The metallogenic conditions in the area are good.The geological features of9gold deposits(points)in the Laizishan anticline area were analyzed and the mineralization rules in the area are summarized.It points out that the gold mineralization in the research area does not show exclusivity to strata and has a choice for litho combination.The region s ore hosting and controlling structures are categorized into two types:fracture structure and interface structure.The former structure is the dominant one,mainly trending in northeastern and northwestern direction.Enrichment of ore bodies changes with tectonic combinations,structural stress intensity,litho combinations,saturated layers and unsaturated layers.The paper points out that the east wing of Laizishan anticline has more favorable conditions for metallogenesis than the west wing and the core of the anticline.Therefore,the prospecting focus of next-step prospecting work should be in the east wing.

关 键 词：赖子山背斜 金矿床 地质特征 成矿规律 成矿模式 黔西南 

分 类 号：TD15[矿业工程—矿山地质测量] P618.51[天文地球—矿床学]