摘要
金牛厂矿区属于扬子地台西南缘滇东北铅锌成矿带,具有很好的找矿前景。铅锌矿体赋存于滇东北新发现含矿层位筇竹寺组NW、NE向断裂中,具有很好的层控性和构造控矿特点。为了找到新的隐伏矿体,在该区开展了1:5000大比例尺岩石地球化学和地球物理找矿工作。通过后期的平硐等工程查证,目前发现矿体1处,物化探异常浓集中心与地下隐伏矿体吻合度较高。此方法不仅节约了勘探费用,缩短了勘探周期,且对金牛厂邻区寻找同类铅锌矿具有一定的借鉴意义。
Jinniuchang mining area is a part of northeastern Yunnan Pb-Zn metallogenic belt which locates at the southwest margin of Yangtze Platform and it has favorable potential of prospecting.The Pb-Zn orebodies occur inside the NW-and NE-trending fractures of Qiongzhusi Formation of the newly discovered ore-bearing horizon in northeastern Yunnan,and the orebodies are characterized by strata-bound mineralization and structural orecontrolling.Petrogeochemical prospecting works and geophysical prospecting works at 1∶5000scale are carried out in this area with the purpose of looking for new concealed orebodies.After engineering verification like footrill at later stage,an orebody is discovered up till now,and the concentration centers of geophysical and geochemical anomalies coincide with underground concealed orebodies.This method not only save the exploration cost but also reduce greatly the period of exploration,and has reference value in prospecting for same type Pb-Zn deposits at peripheral Jinniuchang area.
出处
《矿产与地质》
2015年第6期793-797,共5页
Mineral Resources and Geology
关键词
金牛厂铅锌矿
地球化学
地球物理
滇东北
Jinniuchang Pb-Zn deposit
geochemistry
geophysics
northeastern Yunnan
