Terrestrial heat flow in Junggar Basin, Northwest China |
| |
Authors: | Shejiao Wang Shengbiao Hu Tiejun Li Jiyang Wang Wenzhi Zhao |
| |
Affiliation: | (1) Institute of Geology and Geophysics, Chinese Academy of Sciences, 100029 Beijing, China;(2) Research Institute of Petroleum Exploration and Development, CNPC, 100083 Beijing, China |
| |
Abstract: | Based on temperature logs of 117 boreholes and thermal conductivity of 119 rock samples, the first group of 35 heat flow data
in the Junggar Basin are presented. The thermal gradients vary between 11.6 and 26.5°C/km, and the thermal conductivity changes
from 0.17 to 3.6 W/mK. Heat flow ranges from 23.4 to 53.7 mw/m2 with a mean of (42.3±7.7) mW/m2. The heat flow pattern shows that heat flow is higher in the uplifts and lower in the depressions. The factors affecting
the heat flow and its distribution include basin type, basement structure, sediment thickness, radioactive heat generation,
etc. The overall low present-day heat flow in the Junggar Basin reflected its tectonothermal evolution characterized by lithospheric
thickening, thrust and fault at shallow crust as well as consequently quick subsidence during the Late Cenozoic. |
| |
Keywords: | geothermal gradient thermal conductivity terrestrial heat flow Junggar Basin |
本文献已被 SpringerLink 等数据库收录! |
| 点击此处可从《中国科学通报(英文版)》浏览原始摘要信息 |
|
点击此处可从《中国科学通报(英文版)》下载全文 |
|