Seismic Exploration Method for Detecting Buried Fault and Its Upper Breakpoint in Quaternary Sediment Area-An Example of Yinchuan Buried Active Fault

Autor:	Bao-Jin Liu, Cheng-Bin Zhao, Chi-Zhang Chai, Shao-Ying Feng, Hong-Ke Yuan
Rok vydání:	2008
Předmět:	geography geography.geographical_feature_category Borehole Drilling Sediment General Medicine Active fault Fault (geology) Geological section Quaternary Seismic exploration Geology Seismology
Zdroj:	Chinese Journal of Geophysics. 51:1039-1047
ISSN:	0898-9591
DOI:	10.1002/cjg2.1298
Popis:	Seismic exploration is an effective geophysical means for detecting buried faults. The spread geometries of seismic exploration are the main factors to affect the exploration results as well as the accuracy of fault location. Based on the shallow seismic exploration data from an active fault survey in Yinchuan city and in combination with the petroleum seismic exploration profiles and drilling data, this paper proposes an upward fault-tracing method for determining the geometry of the target fault and its upper breakpoint in thick Quaternary sediments. The result shows that the combination of high resolution shallow seismic exploration and borehole geological section is an effective way for locating the buried fault and determining its activeness.
Databáze:	OpenAIRE
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