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No.92 (2011/9) >

Title :Numerical simulation of the stress field along the project INDEPTH profile: implication for the deep crustal relations between the MCT, STD and GCT
Authors :Matrika Prasad, Koirala
Hayashi, Daigoro
Authors alternative :林, 大五郎
Issue Date :Sep-2011
Abstract :Many interesting findings were obtained during the INDEPTH geophysical surveys but the results of these surveys were not sufficient to explore the deep crustal relations among the Himalayan Mega Thrust namely MCT, STD and GCT. In this study, 2-D finite element method was used to analyze the state of stress and deep crustal relation between MCT, STD and GCT. Elasto-plastic, plane strain model constrained by the northward convergent displacement boundary condition was used to simulate the stress field. Modelling results reveal that thrust/fault geometry, their deep crustal relations and how do they terminate had effect on the stress field, displacement vector, shear stress and exhumation. The lateral variation of the stress orientation and surface exposure of fault/thrust and lithologic units may be the expression of the deep crustal relations between the major structures, their geometry and how do they terminate at the depth. So the along strike variation in the Himalaya may be the manifestation of structural geometry and their deep crustal relationships.
Type Local :紀要論文
ISSN :0286-9640
Publisher :琉球大学理学部
URI :http://hdl.handle.net/20.500.12000/22087
Citation :琉球大学理学部紀要 = Bulletin of the College of Science. University of the Ryukyus no.92 p.7 -16
Appears in Collections:No.92 (2011/9)

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