Borehole Temperature Logging and Characteristics of Subsurface Temperature in oft-com:office:smarttags" />Sichuan Basin

详细信息   

• 责任者：Xu Ming (State Key Lab. of Lithosphere Evolution ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Zhu Chuanqing
• 刊名：Chinese Journal of Geophysics
• 出版年：2011
• 卷期：54(4)
• 关键词：地温梯度 ; geothermal gradient ; 四川盆地 ; Sichuan Basin
• 页码：p.1052-1060
• 图表：8 illus., 2 tables, 38 refs.
• 分类号：0400
• 出版序号：743
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

摘要

Based on temperature logging of 9 boreholes and thermal conductivity measurement of 297 samples in Sichuan Basin, 9 terrestrial heat-flows are reported with high quality and thermal conductivity stratigraphic column is suggested as well. The contour maps of geothermal gradient and heat flow are presented by the combination of existed data. The variation of thermal conductivity of sedimentary rocks in Sichuan Basin is mainly controlled by the lithology, rather than the current burial depths.  In regard to the distribution of heat flow in Sichuan Basin, it is relatively higher in the southwest and central parts than in the north part. It is significantly dependent upon tectonic settings of the basement.