| Summary: | 碩士 === 國立中央大學 === 地球物理研究所 === 88 === Due to highly cultivated development and intensively erosion in Taipei Basin, there is no more outcrops can be found and be located for the active Sanchiao fault locating along the western border of Taipei Basin.
Using the shallow reflection seismic method to figure out its orientation of Sanchiao fault. Based on the field seismic survey, the strike of the Sanchiao fault from Taishan area about N20oE extends to Wu-Ku area, then along the border of Taipei Basin dipping to East and increases dipping to about 75oSE in Kuandu area. The seismic sections showed that Sanchiao fault penetrating through the bottom of Songsan formation, might be as an active fault. Additionally, Sanchiao fault consists of different fault plane that separate the rock basement of Taipei Basin into sections and result in a very steep gradient of rock basement near the western Taipei Basin area. According to the seismic profiles, logging data and palynological correlation analysis, one can convience Sanchiao fault might be a growth fault pattern.
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