广西金牙金矿床控矿构造特征及找矿前景  

Ore-controlling structural characteristics and prospecting potential of Jinya gold deposit in Guangxi

作　　者：郭腾飞[1] 刘虎[1] 蔡明海[1] 彭振安[1] 汪明[1] 梁玲慧[1] 谭泽模[1] 唐龙飞[1] 

机构地区：[1]广西大学资源与冶金学院,南宁530004

出　　处：《矿产与地质》2013年第1期12-20,共9页Mineral Resources and Geology

基　　金：广西凤山县金牙金矿床地质特征及找矿远景研究项目

摘　　要：广西凤山县金牙金矿是我国滇黔桂金三角地区具代表性的微细浸染型矿床之一。文章通过地质构造调查,综合分析了矿床构造特征,控矿构造,矿区构造样式等,认为金矿体主要分布在背斜的转折端及东西两翼。矿区断裂构造有近SN向主断裂、近SN向次级断裂、以及顺层滑动破碎带等,它们均为区内控矿构造。其中近SN向次级断裂是主要的容矿构造,通过对其运动学特征研究认为它们为早期挤压过程中派生的X节理,次级断裂后期张扭性活动叠加成矿作用。在此基础上,提出了金牙金矿床的找矿前景。Jinya gold deposit in Fengshan county of Guangxi Zhuang Autonomous Region is a typical fine dis- seminated deposit which locates at the triangle region of Yunnan-Guizhou-Guangxi. The comprehensive anal- ysis on structural features, ore-controlling structure and tectonic style of Jinya gold deposit during the geo- logical structure survey shows that gold ore bodies are distributed in the hinge zone and the east and west limbs of the anticline. The mineralization is controlled by the faulted structures in this mining area, which are nearly SN trending master fault, nearly SN trending subsidiary fault and bedding gliding broken belt. A- mong them, nearly SN trending subsidiary fault is the major ore-bearing structure, and its kinematics char- acteristics were researched. In light of the results, these structures are X-joints which occurred in the com- pressive setting during the early stage. The subsidiary fault is superimposed by tensor-shear activities in some parts, and superimposed mineralization occurs. On that basis, an account of the prospecting potential of Jinya gold deposit is presented.

关 键 词：金矿床 构造特征 找矿前景 金牙 广西 

分 类 号：P618.51[天文地球—矿床学]