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The Structural Styles of Different Structural Layers in the Western Part of North Tarim Uplift and Their Genetic Mechanisms

CHENG Hai-yan, LI Jiang-hai, ZHAO Xing   

  1. Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing 100871, China
  • Received:2009-12-20 Revised:2009-12-20 Online:2009-12-20 Published:2009-12-20

Abstract: The Western part of North Tarim Uplift underwent several phases of tectonic evolution. Three structural layers were formed including Sinian-Paleozoic, Mesozoic-Paleogene and Neogene-Quaternary structural layers. The thrust faults, folds,strike-slip faults and magmatic diapir structures were formed in the lower layer; the negative inversion and normal faults were developed in the middle layer; while in the upper layer, the thrust faults were developed in the Yingmaili region, and the negative inversion structures were developed in the Yaha region continuously. The relations of the structures of different layers are diverse in different places. The structures of the middle and upper layers inherited those in the lower layer in the Yaha region. The deep thrusts extended upwards and controlled the strike and the motion of the upper faults; however, in the Yingmaili region, the gypsum-salt beds separated the structures of different layers.