广西平南县新坪金矿成矿规律及找矿预测  

The Metallogenic Regularities and Metallogenic Prognosis for the Xinping Gold Deposit in Pingnan County,Guangxi

作　　者：周业泉 庞保成[1,2] 李院强 吕嘉文[1] 赖昕[1] 

机构地区：[1]桂林理工大学地球科学学院,广西桂林541006 [2]桂林理工大学广西隐伏金属矿产勘查重点实验室,广西桂林541006

出　　处：《现代地质》2016年第4期770-780,共11页Geoscience

基　　金：中国地质调查局地质调查工作项目"广西大瑶山成矿带平南-昭平地区金矿整装勘查区关键基础地质研究"(12120114052501);国家自然科学基金项目(41362006);广西自然科学基金项目(2013GXNSFAA019275)

摘　　要：新坪金矿地处广西大瑶山成矿带的东部,是桂东南地区一个较为典型的构造破碎蚀变岩型金矿。调查发现:矿区内金矿体(金矿化)主要赋存于寒武系黄洞口组中,部分金矿体(金矿化)赋存于花岗斑岩与寒武系硅化砂岩接触破碎带以及花岗斑岩体内,近EW向、NE向的次生断裂和裂隙是主要的容矿构造,而金矿化强度与硅化、黄铁矿化、绢云母化关系密切。根据新坪金矿的矿床地质特征、成矿规律和化探异常进行综合分析,圈定了矿区内2个成矿远景区及6个找矿靶区。The Xinping gold deposit,located in the eastern part of Dayaoshan metallogenic belt in southeastern Guangxi,is a typical altered rock type gold deposit. Controlled by EW and NE secondary faults,the ore bodies mainly occur in fracture zones which formed in Cambrian strata,or in contacting belt between strata and graniteporphyries,or in granite-porphyries. The gold mineralization has close relationship with silicification,pyritization and sericitization. Based on geological characteristics of the deposit,metallogenic regularities and the geochemical anomalies,we put forward six prospecting targets in two prospective areas.

关 键 词：大瑶山成矿带 蚀变岩型金矿 成矿规律 成矿预测 新坪金矿 广西 

分 类 号：P618.51[天文地球—矿床学]