Joint application of reflection and refraction seismic exploration  approach to piedmont buried fault at complex geotectonic conditions

doi:10.3969/j.issn.0253-2778.2016.08.008

Abstract

Abstract: Seismic reflection and refraction exploration techniques have its advantages and limitations to exploring the piedmont buried fault in front of mountain at that complex segment in geotectonic aspect. So a joint of reflection and refraction seismic exploration approach is applied for this case and make best use of the advantages and bypass the disadvantages to infer the location, nature and preliminary activity of the faults. Here, seismic reflection and refraction are jointed to detect the Qizhou segment of the Xiangfan-Guangji fault belt and yield a high-precision time profile of reflection and velocity profile of refraction. These results illustrate a sequence in the shallow and a variation velocity of whole strata. Therefore, the main rupture location, fault property and activity were characterized to be a fault belt rather than a single fault. So its believed that this joint exploration is not only a universal significance in methodology but also an important data for the evaluation of the fault activity surrounding the civil engineering.

Key words: piedmont, buried fault, seismic reflection, seismic refraction, joint exploration

CLC Number:

P315
P5

WANG Ran, ZHAO Chengbin. Joint application of reflection and refraction seismic exploration approach to piedmont buried fault at complex geotectonic conditions[J]. Journal of University of Science and Technology of China, 2016, 46(8): 671-679.

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Joint application of reflection and refraction seismic exploration approach to piedmont buried fault at complex geotectonic conditions

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