华南地震Issue(3)：12-17,6.DOI:10.13512/j.hndz.2014.03.003
广东富湾银矿区地震地质环境研究
Study on Seismic and Geological Environment in the Fuwan Silver Mine Area of Guangdong Province
摘要
Abstract
The Fuwan silver deposit has the largest ore reserves in China. For mining safety and reducing the risk of mining induced earthquakes, seismic and geological environment were studied in detail. The mine area located in hilly surrounding with the alluvial plain. Owing to the syncline composed of Upper Triassic (Xiaoping Formation) , dark gray thin carbonaceous mudstone, carbonaceous shale and coal seam developed. There were fractures in the direction of NNE-NE and NWW with the substance characteristics of silicified rock, silicified breccia and tectonic breccia. The satellite-remote-sensing image and geomorphology showed that the fractures had no activity sign since the Late Quaternary. With the regional tectonic stress, the fractures in the direction of NWW would produce strike-slip (f6 and f7) , and the fractures in the direction of NE-NNE would be in the status of extrusion. The results showed that the seismic activity was weak in the Fuwan silver mine area within the radius of 25 km. In the future of the mining process, the factors of mining induced earthquakes, such as the activity of the fractures, the changes of orebody stress, and geological weak layers should be paid more attention to.关键词
矿山地震/断裂构造/富湾银矿/诱发因素Key words
Mine earthquake/Fracture structure/Fuwan silver mine area/Inducing factors分类
天文与地球科学引用本文复制引用
马浩明,余演波..广东富湾银矿区地震地质环境研究[J].华南地震,2014,(3):12-17,6.基金项目
广东省科学技术厅社会发展项目“富湾银矿开采对广东纺织职业技术学院高明新校区地震环境影响研究”（2009A030302015）资助 （）
