Study on Seismic and Geological Environment in the Fuwan Silver Mine Area of Guangdong Province
MA Haoming
YU yanbo
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.
Keywords：Mine earthquakeFracture structureFuwan silver mine areaInducing factors
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 12-17 )