Terrestrial heat flow of Jizhong depression, China, Western Bohai Bay basin and its influencing factors
Terrestrial heat flow of Jizhong depression, China, Western Bohai Bay basin and its influencing factors
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渤海湾盆地西部冀中坳陷陆地热流及其影响因素
DOI：
10.1016/j.geothermics.2021.102210
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发表时间：
2021-11
期刊：
影响因子：
3.9
通讯作者：
Chao Zhang
中科院分区：
文献类型：
--
作者：
Zhuting Wang;Song Rao;Hongping Xiao;Yibo Wang;Guangzheng Jiang;Shengbiao Hu;Chao Zhang
渤海湾盆地西部冀中坳陷处于高热状态。热流是地热学中最重要的参数之一，它的测量有助于更好地了解区域岩石圈的热结构。在这项研究中，从 14 个深钻孔中获得了连续稳态温度测井。测量了 136 个岩心样本的热导率和放射热产生。温度数据表明沉积层内的传热以热传导为主，地温梯度约为31.5℃·km−1。白云岩地层由于其异常高的热导率和渗透率，梯度值接近0℃•km−1。砂岩、白云岩和变质岩的平均导热系数分别为2.46、5.51和3.21 W•m−1•K−1，放射产热分别为1.05、0.26和0.74 μW•m−3。冀中坳陷较高热流主要分布在次隆起区地下构造周围，即次隆起区与次凹陷区之间的断层附近，热流值可达120.0 mW•m−2。随着白云岩埋藏深度的增加或上覆砂岩厚度的增加，地表热流值减小。最后讨论了影响浅层温度的因素：横向沉积物厚度变化可以显着影响温度分布。很久以前发生的岩浆活动的影响可以忽略不计。
The Jizhong depression in the western Bohai Bay Basin has a high thermal state. Heat flow is one of the most important parameters in geothermics, its measurement can help obtain a better understanding of the regional lithospheric thermal structure. In this study, continuous steady-state temperature logs were obtained from 14 deep boreholes. 136 core samples were measured for thermal conductivity and radiogenic heat production. The temperature data indicated that heat transfer within the sedimentary layer was dominated by heat conduction, with a geothermal gradient of approximately 31.5 ℃•km−1. The gradient value was almost 0 ℃•km−1in the dolomite strata, due to their abnormally high thermal conductivity and permeability. Average thermal conductivity values was 2.46, 5.51 and 3.21 W•m−1•K−1, and the radiogenic heat production were 1.05, 0.26, and 0.74 μW•m−3for the sandstone, dolomite and metamorphic rocks, respectively. Higher heat flow in the Jizhong depression is mainly distributed around the subsurface structure of sub-uplift region, which is near the fault between the sub-uplift region and the sub-depression region, and the value can reach 120.0 mW•m−2. With an increase in the dolomite buried depths or an increase in the overlying sandstone thickness, the surface heat flow value decreases. Finally, we discuss the factors influencing the shallow temperature: the lateral sediment thickness variations can markedly influence the temperature distribution. The influence of magma activity that happened long ago can be neglected.
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影响因子：
16.6
作者：
Scott S;Driesner T;Weis P
通讯作者：
Weis P
DOI：
10.1007/s11430-017-9188-4
发表时间：
2018-05
期刊：
Science China Earth Sciences
影响因子：
--
作者：
D. He;S. Shan;Yuying Zhang;R. Lu;Ruifeng Zhang;Yongqian Cui
通讯作者：
D. He;S. Shan;Yuying Zhang;R. Lu;Ruifeng Zhang;Yongqian Cui
影响因子：
3.9
作者：
Yibo Wang;Shengbiao Hu;Zhuting Wang;G. Jiang;D. Hu;Kesong Zhang;P. Gao;Jie Hu;Tao Zhang
通讯作者：
Yibo Wang;Shengbiao Hu;Zhuting Wang;G. Jiang;D. Hu;Kesong Zhang;P. Gao;Jie Hu;Tao Zhang
影响因子：
3.9
作者：
Chao Zhang;G. Jiang;Yizuo Shi;Zhuting Wang;Yi Wang;Shengtao Li;X. Jia;Shengbiao Hu
通讯作者：
Chao Zhang;G. Jiang;Yizuo Shi;Zhuting Wang;Yi Wang;Shengtao Li;X. Jia;Shengbiao Hu
影响因子：
2.8
作者：
Zhuting Wang;G. Jiang;Chao Zhang;Xianchun Tang;Shengbiao Hu
通讯作者：
Zhuting Wang;G. Jiang;Chao Zhang;Xianchun Tang;Shengbiao Hu