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Research on the Tectonic Deformation of Xiangfan-guangji Fault Zone

Author: HuangWenCheng
Tutor: SongChuanZhong
School: Hefei University of Technology
Course: Structural Geology
Keywords: Xiangfan - Guangji fault Foreland basin - thrust belt Structural Analysis
CLC: P542.3
Type: Master's thesis
Year: 2010
Downloads: 67
Quote: 0
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Abstract


In this paper, regional structural geology methods, combined with field survey data and microstructural deformation experiments on the fault zone metamorphism , the formation process of parsing and proved with the county , Jingshan regional deformation zone geometry features . Since the structure found in the study area by the multi-stage , multi-layered composite overlay transformation, the formation to the northeast to southwest regularity thrusting inclined structure , with close to a fault occurs cataclastite , and the degree of deformation strengthening . Xiangfan - Guangji fault in the long-term evolution of a variety of configurations saved phenomena, which records a wealth of Qinling micro-continent between the block and the Yangtze plate subduction , collision evolution information . Paper systematically expounded the Sui County , Jingshan area tectonic rock mix from old to new substrates were classified as transitional combination of continental margin mix , the mainland - rift edge combination of foreland basin combinations. Through a large number of field observation and analysis, that the study area has undergone tectonic deformation of the Yangtze to the long-term evolution of the Indo-Chinese and Himalayan foreland basin formation and tectonic deformation suffered repeated transformation , and ultimately the formation of today's tectonic pattern. Study area from the direction of the North East → SW tectonic zonation evident , according to which the deformation characteristics and tectonic environment with the county is divided into the foreland thrust belt , Dahongshan broken foreland fold belt , Jingshan foreland basin ; longitudinally divided structural layer of the Yangtze , Yangzi Indo structural layer and post structural layer , structural layer continental margin is tectonic cycles strata performance . Folds and faults in the Triassic Qinling micro- plate and the Yangtze plate collision , the formation of the North West - south trending structural features . This method of using regional structural geology , according to the field of view of a large number of investigations on the deformation and metamorphism and tectonic fault formation process analysis, obtained with the county , Jingshan regional deformation zone geometry features . Tectonic deformation of the study area that is multi-stage , multi-layered composite structure adapted from superposition , formed from the North East → Nancy regularity sloping overthrust structure , with close to a fault occurs cataclasites , and appears to enhance the degree of deformation of the phenomenon .

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CLC: > Astronomy,Earth Sciences > Geology > Structural Geology > Tectonic movement > Line is constructed , faulting
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