隐伏铅锌矿的找矿预测技术方法探讨——以黔西北丫都铅锌矿床为例  

Discussion on prospecting prediction technique for concealed lead-zinc ore: take Yadou lead-zinc deposit in the northwest of Guizhou for example

作　　者：曾道国 金中国 罗洪远 赵俭文 卢卯 ZENG Dao-guo;JIN Zhong-guo;LUO Hong-yuan;ZHAO Jian-wen;LU Mao(Non-Ferrous Metals and Nuclear Industry Geological Exploration Bureau of Guizhou,Guiyaag 55000)

机构地区：[1]贵州省有色金属和核工业地质勘查局,贵阳550005

出　　处：《矿产勘查》2018年第6期1197-1204,共8页Mineral Exploration

基　　金：中国地质调查局大地调项目(编号:1212010530803)资助

摘　　要：黔西北地区是上扬子铅锌成矿带的重要组成部分,也是我国重要的MVT铅锌成矿区。铅锌矿床沿区域性断裂成带状分布,矿体产出主要受断裂构造和岩性双重控制,多为地表矿化蚀变、标志不明显,倾向延深大于走向延长,矿石品位富、经济价值高的隐伏铅锌矿体。文章通过对黔西北丫都铅锌矿床隐伏矿体发现过程的总结,概括了地质测量在找矿预测中的重要作用、工作的基本目的和需解决的关键地质基础问题,指出土壤地球化学测量是直接揭示找矿信息的重要依据,地球物理测量是探寻隐伏铅锌矿常用技术方法,集成了地质+地球化学测量研究圈定成矿有利地段→地球物理测量定位低阻场源体位置→钻探工程验证探寻隐伏铅锌矿体的有效技术方法、手段组合,验证结果表明是有效和可行的,可在相邻铅锌矿区攻深找盲中进一步推广应用。The northwest region of Guizhou is an important part of the Upper Yangtze Lead-zinc metallogenic belt and is also an important MVT lead and zinc Metallogenic province in China. The lead and zinc deposits occurrenced as zonal distribution along the regional faults,the output of orebodies are controlled by the fracture structure and specific rocks. There is commonly not obvious alteration and mineralization mark on surface above the orebodies. The tendency to extend in deep is larger than to in the length. The hidden lead zinc orebodies have the characteristics of rich grade and high economic value. By summarizing the discovery process of the hidden ore bodies of the Yadou lead-zinc deposit in the northwest of Guizhou province,this paper summarizes the important role of geological survey in prospecting,the basic purpose of work and the key geological foundation problems. The paper also pointed out that soil geochemical survey is an important basis for revealing directly exploration information,geophysical measurements are common techniques for exploring the hidden lead and zinc mine. The paper show that the combination of effective technical methods and means of integrated with geological ＋ delineating survey to delineate favorable areas of mineralization → geophysical survey localize low resistance field source position→the drilling engineering explore the hidden lead and zinc ore body is effective and feasible. The application can be further popularized in the adjoining lead-zinc mining area.

关 键 词：隐伏铅锌矿 地球物理测量 地球化学测量 工程验证 赫章丫都 

分 类 号：P618.42[天文地球—矿床学] P618.43[天文地球—地质学]