APPLICATION OF SHALLOW ARTIFICIAL SEISMIC PROSPECTING IN STUDY ON BAGANG-SHIHUA HIDDEN FAULT
Weihua Hu · Inland Earthquake · 2007
For example Bagang-Shihua hidden fault,we introduced the methods of using shallow artificial earthquakes to prospect hidden fault in the covery layer of fourth series river gravel in Urumqi region.Firstly,confirmed the parameters of observation system,secondly,actualized artificial seismic prospecting of mang times covery,this can let us obtain good multilayer reflecting profile,based on this,combined with relative datum to interpret the geology;in the end,used bore associated profile to test.The result shows,Bagang-Shihua hidden fault is hidden reverse fault-anticline structure,the breadth is from 150 km to 300 km,the two main faults lie in the northern side of anticline,they are reverse fault with S or SE direction dip,they pass middle pleistocene and upper pleistocene gravel layer,handing wall is anticiline structure,secondary reverse fault or positive fault develop in the sourthern side of anticline,the upright displacements between main reverse fault belt are from 21 km to 23 km.