Tectonic Control of Geothermal Resources in the Peripheral of Ordos Basin
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P314 P611

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    Abstract:

    Geothermal reservoir is a precious and cleanly source of energy. A certain relationship exists between the geothermal activity and the tectonic. With the energy exploration in China gradually shifting to the west, abundant low-medium temperature geothermal resources have been found in the Ordos Basin, especially in the rift basins in the periphery of the Ordos Basin. However, the formation mechanism and property of geothermal resources in the Ordos Basin and its peripheral areas have not been studied due to the different working objectives. Based on the analysis of tectonics in Ordos Basin, the study results of geological structure and geothermal resources in the Ordos Basin and its peripheral areas have been summarized systematically in this paper. The relation of tectonic distribution to the heat flow, geothermal gradient and geothermal field distribution are studied qualitatively. It's suggested, that the value of heat flow and geothermal gradient in Ordos block are lower, while a ring high anomaly belt appears in the periphery of the block. The geothermal activities distribute mainly in the periphery of Ordos, that is to say, high heat flow, high geothermal gradient and distribution of tectonics in clusters are consistent in the periphery of Ordos Basin, indicating that the tectonics control the form of geothermal resources in the periphery of Ordos Basin.

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WANG Guiling),LIU Zhiming),LIN Wenjing)) Department of Earth Science, Nanjing University,) Institute of Hydrogeology, Environmental Geology, CAGS, Shijiazhuang, Hebei,.2004. Tectonic Control of Geothermal Resources in the Peripheral of Ordos Basin[J]. Acta Geologica Sinica,78(1):44-51

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  • Received:
  • Revised:August 13,2003
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