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has been cited by the following article:

• TITLE: Research on the Distribution Law and Influencing Factors of Ground Temperature in Xutuan Coal Mine

  AUTHORS: Lintao Wang, Qimeng Liu, Sen Yang

  KEYWORDS: Geothermal Distribution, Xutuan Coal Mine, Geothermal Gradient, Influencing Factors, Geological Structure

  JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.8 No.10, October 19, 2020

  ABSTRACT: Taking the Xutuan coal mine as an example, based on the temperature measurement data, combined with the geological background of the study area, this paper analyzes the distribution, thermal evolution, formation mechanism and influencing factors of the deep geothermal field in the study area. Combined with previous research results and field temperature measurement data, the research results show that the temperature gradient of Xutuan coal mine varies in the range of 2.65°C/hm - 3.15°C/hm, most of which are 1.6°C/hm - 3.0°C/hm, which belongs to the normal area with relatively stable geothermal gradient. The northern part of the study area is more developed than the southern part. The minimum geothermal gradient is 2.65°C/hm, and the geothermal gradient gradually increases from north to south; the geothermal gradient is negatively correlated with the buried depth within a certain depth range. Roughly taking the depth of 200 - 350 m as the dividing line, the temperature increases with the increase of depth, showing a good linear trend and the characteristics of conductive heating. The main influencing factor of the geothermal field in the study area is the geological structure, which is greatly affected by the fault structure. Followed by lithological changes and groundwater activities, the flow of the four waters has a certain control effect on the shallow geothermal field distribution.