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学科主题: 地球科学::地质学
题名: High-quality heat flow determination from the crystalline basement of the south-east margin of North China Craton
作者: Jiang, GZ (Jiang, Guangzheng)1, 2; Tang, XY (Tang, Xiaoyin)3; Rao, S (Rao, Song)4; Gao, P (Gao, Peng)1, 2; Zhang, LY (Zhang, Linyou)1, 2; Zhao, P (Zhao, Ping)5; Hu, SB (Hu, Shengbiao)1, 2
通讯作者: Jiang, GZ
刊名: JOURNAL OF ASIAN EARTH SCIENCES
发表日期: 2016
DOI: 10.1016/j.jseaes.2016.01.009
卷: 118, 期:0, 页:1-10
收录类别: SCI
合作性质: 国内
文章类型: Article
英文摘要: Very few of heat flow data have come from the crystalline basement in the North China Craton but rather from boreholes in the sedimentary cover of oil-gas basins. Explorations for hot dry rock (HDR) geothermal resources and porphyry gold deposits in eastern China offer now valuable opportunities to study the terrestrial heat flow in the crystalline basement. In this study, we obtained continuous temperature logs from two boreholes (the LZ borehole with a depth of 3471 m and the DR borehole with a depth of 2179 m) located in the south-east margin of the North China Craton. The boreholes have experienced long shut-in times (442 days and 261 days for the LZ borehole and DR borehole, respectively); thus, it can be expected that the temperature conditions have re-equilibrated after drilling and drill-mud circulation. Rock thermal conductivity and radiogenic heat production were measured for 68 crystalline rock samples from these two boreholes. The measured heat-flow density was determined to be 71.8 +/- 2.3 mW m(-2) (for the 12 borehole) and 91.5 +/- 1.2 mW m(-2) (for the DR borehole). The heat flow for the 12 borehole is close to the value of 75 mW m-2 determined in the Chinese Continental Scientific Drilling main hole (CCSD MH), both being in the Sulu-Dabie orogenic belt and thus able to verify each other. The value for the DR borehole is higher than the above two values, which supports former high heat-flow values determined in the Bohai Bay Basin. (C) 2016 Elsevier Ltd. All rights reserved.
语种: 英语
WOS记录号: WOS:000370087000001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7735
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100101, Peoples R China
3.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China
4.Yangtze Univ, Yangtze 434023, Hubei, Peoples R China
5.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100029, Peoples R China

Recommended Citation:
Jiang, GZ ,Tang, XY ,Rao, S ,et al. High-quality heat flow determination from the crystalline basement of the south-east margin of North China Craton[J]. JOURNAL OF ASIAN EARTH SCIENCES,2016,118(0):1-10.
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