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《Earth Science(Journal of China University of Geosciences)》 1996-02
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MAGNETOTELLURIC SOUNDING IN THE QIANGTANG BASIN OF XIZANG(TIBET)

Zhang Shengye Wei Sheng Wang Jiaying (Department of Applied Geophysics,China University of Geosciences,Wuhan 430074)Zhang Xianjue (5th Geophysical Prospectiny Team of Central-South Bureau of Petroleum Geology,MGMR,Xiangtan 411104)  
Major results of magnetotelluric sounding in the Qiangtang Basin of Xizang(Tibet)are presented.The features of regional tectonics and tectonic framework are discussed,and the deep geoelectric structure in the Qiangtang Basin is analyzed in detail.It is showed that the south and north parts of the Qiangtang Basin have a good contrast in the deep electrical structure,in the south Qiangtang and Bangonghu-Nujiang suture,there are generally two high conductivity layers in the crust;in north Qiangtang,there is generally one high conductivity layer.The curst lacks of the high conductivity layer of the lower crust,which is probably relative to the flowage of the crustal substance toward the east.The thickness of lithosphere is about 100~130km in the Qiangtang Basin.
【Fund】: 国家“八五”西藏地勘专项科研成果.
【CateGory Index】: P631.325
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