Through field geological survey, the authors found that abundant thrust faults developed in the Longmen (龙门) Mountain thrust belt. These faults can be divided into thrust faults and strike-slip faults according to...Through field geological survey, the authors found that abundant thrust faults developed in the Longmen (龙门) Mountain thrust belt. These faults can be divided into thrust faults and strike-slip faults according to their formation mechanisms and characteristics. Furthermore, these faults can be graded into primary fault, secondary fault, third-level fault, and fourth-level fault according to their scale and role in the tectonic evolution of Longmen Mountain thrust belt. Each thrustfault is such as composed of several secondary faults, Qingchuan (青川)-Maowen (茂汶) fault zone is composed of Qiaozhuang (乔庄) fault, Qingxi (青溪) fault, Maowen fault, Ganyanggou (赶羊沟) fault, etc.. The Longmen Mountain thrust belt experienced early Indosinian movement, Anxian (安县) movement, Yanshan (燕山) movement, and Himalayan movement, and the faults formed gradually from north to south.展开更多
基金supported by the National Natural Science Foundation of China (Nos. 40672143, 40472107, 40172076)the National Basic Research Program of China (Nos. 2005CB422107, G1999043305)+1 种基金Development Foundation of Key Laboratory for Hydrocarbon Accumulation of the Ministry of Education of China (No. 2003-03)Project of the South-west Petroleum Natural Gas Subcompany of SINOPEC (No. GJ-51-0602)
文摘Through field geological survey, the authors found that abundant thrust faults developed in the Longmen (龙门) Mountain thrust belt. These faults can be divided into thrust faults and strike-slip faults according to their formation mechanisms and characteristics. Furthermore, these faults can be graded into primary fault, secondary fault, third-level fault, and fourth-level fault according to their scale and role in the tectonic evolution of Longmen Mountain thrust belt. Each thrustfault is such as composed of several secondary faults, Qingchuan (青川)-Maowen (茂汶) fault zone is composed of Qiaozhuang (乔庄) fault, Qingxi (青溪) fault, Maowen fault, Ganyanggou (赶羊沟) fault, etc.. The Longmen Mountain thrust belt experienced early Indosinian movement, Anxian (安县) movement, Yanshan (燕山) movement, and Himalayan movement, and the faults formed gradually from north to south.