THE TECTONIC DEFORMATION AND SEGMENTATION FEATURES OF LINTONG-CHANG'AN FRACTURE ZONE
Yiqing Zhu · Plateau Earthquake Research · 2005
The paper is quantitative calculated and analyzed leveling data across fault from 1970 to 1996,leveling data across fault field of Lintong-Chang'an fault belt from 1983 to 2004,and gravity data across Lintong-Chang'an fault belt from 1992 to 2004.The analysis shows:①Lintong-Chang'an fault is a very active fault in the near future.The primary and secondary faults have cha-racter of symmetrical active in the active fault belts,the Jiangyi-Baopo fault is in the primary position of the all active fault belts.②The vertical deformation showed the difference of degree quasi-synchronism fast decline in the Majie and Fengyukou across fault field of span Lintong-Chang'an fault belt before earthquake,but after earthquake the change showed difference in Majje and Fengyukou across fault field,due to the area structure stress field change.③The action of Lintong-Chang'an fault belt has distinctness section character.According to analysing data across fault field and across fault level,the south section is fairly stable and the north section is very active.④The data across fault field of level and the across fault of level are consistent.Also the gravity change is related with the vertical deformation.