Thermo-Rheological Structure of Continental Lithosphere Beneath Major Basins in Central-West China: Implications for Foreland Basin Formation

详细信息   

• 责任者：Liu Shaowen (School of Geographic and Oceanographic Sciences ; Nanjing University ; Nanjing 210093 ; China) ; Wang Liangshu
• 刊名：Earth Science Frontiers
• 出版年：2008
• 卷期：15(3)
• 关键词：岩石圈 ; lithosphere ; 流变学 ; rheology
• 页码：p.113-122
• 图表：3 illus., 2 tables, 40 refs.
• 分类号：0400
• issnNo：ISSN1005-2321
• isbnNo：CN11-3370/P

摘要

///The pervasively existing foreland fold and thrust belts in the Central-West China are characterized by complex deformation style, considerable oil and gas potential and unique sedimentary and petroleum geology that is different from the classical foreland basins, but the formation process and geodynamics of basin of this type are still open and controversialIntegrating geotemperature data derived from oil and gas exploration, thermophysical parameters available and geothermal modeling, here we present the thermal state, rheology of the continental lithosphere of the basins in Central-West China, and further reveal the deep structure and lithospheric properties of this area, combined with other geological and geophysical observations available thereThe result shows that the lithosphere of those basins is of relative strong rigidity with little deformation interior, as featured by large thickness and strength, low temperature, and is contrary to that of the orogenic belts around the place where the lithosphere shows high temperature, relatively small strength and thickness, and is apt to deform.