Journal of Jilin University(Earth Science Edition) ›› 2016, Vol. 46 ›› Issue (1): 220-229.doi: 10.13278/j.cnki.jjuese.201601206

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Suggestions for Geothermal Genetic Mechanism and Exploitation of Zhacang Temple Geothermal Energy in Guide County, Qinghai Province

Li Xiaolin1, Wu Guolu1, Lei Yude1, Li Chongyang2, Zhao Jichang3, Bai Yinguo1, Zeng Zhaofa4, Zhao Zhen1, Zhang Shanshan5, Zhao Aijun1   

  1. 1. Key Lab of Geo-Environment, Qinghai Province/Environmental Geological Prospecting Bureau of Qinghai Province, Xi'ning 810007, China;
    2. Bureau of Geology and Mineral Exploration and Development 915 Hydrogeology and Engineering Geology Team, Meishan 620000, Sichuan, China;
    3. China Institute of Geo-Environment Monitoring, Beijing 100003, China;
    4. College of GeoExploration Science and Technology, Jilin University, Changchun 130026, China;
    5. Qinghai Province Geological Bureau, Xi'ning 810001, China
  • Received:2015-04-08 Online:2016-01-26 Published:2016-01-26
  • Supported by:

    Supported by Science and Technology Support Program of Qinghai Province (2014-GX-207),National High-Tech R&D Program of China ("863" Program) (2012AA052803) and Geological Survey Projects of China Geological Survey(WH[2013] No.23)

Abstract:

The regional distribution of the thermal anomaly is studied by the macroscopic interpretation of satellite remote sensing, aeromagnetic heat, and gravity anomalies. At the same time, the exposed conditions and hydrochemical characteristics of hot springs are discussed through field investigation and test. On this basis, the heat channel and infiltration channel of the hot spring are analyzed, as well as the geothermal genetic mechanism and exploitation. The temperature of Zhacang hot spring is 93.5℃, which is related to the local pressure. The precipitation, hot ditch water, and upper gully water are the recharge source of the hot springs;the east-west tension cracks are the filtration channels;the metamorphic belt between the middle Triassic sandy slates and granodiorite is the runoff channel of the hot reservoir;covering by the sandy slate, Reguang fault of NNW(F1) is the heat source channel. It belongs to a fracture-deep cycle geothermal system. The temperature of hot reservoir could be up to 136.0℃,and could be used for generating electricity. The temperature at the depth of 2000 meters near the F1 fault could reach 195.0℃, and the hot dry rocks are valuable for future development and utilization.

Key words: hot spring of Zhacang Temple, genetic mechanism of geothermal, exploitation, hot dry rock

CLC Number: 

  • P314

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