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| THE MAIN CHARACTERISTICS OF YALUJIANG FAULT ZONE AND ITS SINGNIFICANCE |
| ZHANG Guo-ren1,2, JIANG Shu-e2, HAN Xiao-ping2, HUANG Zhen-fu2, QU Hong-xiang2, GUO Wei-jing2, WANG Fu-jun2 |
1. College of Earth Scienes and Resources, China University of Geosciences, Beijing 100083, China;
2. Liaoning Institute of Geological Exploration, Dalian 116100, China |
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Abstract The large-scale Yalujing fault zone, lying in Eastern Liaoning Province, is the secondary fault zone of the Tan-Lu fault zone on its east side, with multiple activities. The movements underwent four stages, namely, left-lateral shearing in Late Indosinian-Early Yanshanian epoch (T3-J1); low angle expanding-slipping and compressive reverse thrust in Middle Yanshanian epoch (J2-3); left-lateral normal strike-slip faulting from Late Yanshanian (K,)to the end of Yanshanian (K2); and right-lateral strike-lateral strike-slip faulting from the end of Yanshanian (K2) to Early Himalayan epoch (N). The fault zone controls the distribution of the magmatic rocks, sedimentary basins and minerals. It also controls the intermediate-basic and acidic-intermediate volcanic rocks of Cretaceous. It is a deep fault that cut the sima. The lift-lateral transposition is up to 20 km, with the greatest vertical on both sides of the fault zone are comparable, which displacement of 4 km. The geological and structural characteristics is significantly important for the research in the region.
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Received: 27 September 2005
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2006, Vol. 15 
