The Geochemical Characteristics and Genesis Mechanisms of the Zaozigou Geothermal Field

Yuang Wang, Baozhu Li () and Aibing Chen ()
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Yuang Wang: Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China
Baozhu Li: Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China
Aibing Chen: Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China

Sustainability, 2024, vol. 16, issue 16, 1-18

Abstract: Geothermal resources have become one of the crucial clean energy sources worldwide. The Gansu Province is renowned in China for its abundant geothermal resources. The Zaozigou area features prominent geothermal outcrops, indicating untapped geothermal potential. However, the level of geothermal resource development in this region remains low, coupled with a lack of comprehensive research on its hydrochemical characteristics and formation mechanisms. This study conducted an in-depth hydrochemical analysis of six geothermal water groups and two surface water groups within the collection area, along with collecting hydrogen and oxygen isotope data from nine geothermal water sources. Piper trigram and Na-K-Mg diagram were utilized to investigate the origin of the subsurface hot water. Various analyses, including characteristic coefficients, correlation analysis, hydrochemical types, recharge elevation, reservoir temperature, and circulation depth, were conducted on the geothermal water. The study proposes a preliminary conceptual model of the Zaozigou geothermal system, providing a theoretical basis for the rational utilization of geothermal resources and promoting sustainable resources.

Keywords: geothermal fluids; hydrogeochemistry; formation mechanism; Zaozigou (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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