STUDIES ON HYDROCHEMICAL CHARACTERISTICS AND FORMING MECHANISMS OF JIMO HOT SPRING GEOTHERMAL FIELD

FU Yunxia; SUN Jilin; XU Rui; WANG Milei; LV Jin; CHEN Guangquan; LIU Yanguang

doi:10.16028/j.1009-2722.2021.110

2021 Vol. 37, No. 9

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Article navigation > Marine Geology Frontiers > 2021 > 37(9): 25-35

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FU Yunxia, SUN Jilin, XU Rui, WANG Milei, LV Jin, CHEN Guangquan, LIU Yanguang. STUDIES ON HYDROCHEMICAL CHARACTERISTICS AND FORMING MECHANISMS OF JIMO HOT SPRING GEOTHERMAL FIELD[J]. Marine Geology Frontiers, 2021, 37(9): 25-35. doi: 10.16028/j.1009-2722.2021.110

Citation:

FU Yunxia, SUN Jilin, XU Rui, WANG Milei, LV Jin, CHEN Guangquan, LIU Yanguang. STUDIES ON HYDROCHEMICAL CHARACTERISTICS AND FORMING MECHANISMS OF JIMO HOT SPRING GEOTHERMAL FIELD[J]. Marine Geology Frontiers, 2021, 37(9): 25-35. doi: 10.16028/j.1009-2722.2021.110

STUDIES ON HYDROCHEMICAL CHARACTERISTICS AND FORMING MECHANISMS OF JIMO HOT SPRING GEOTHERMAL FIELD

1.
Qingdao Geo-Engineering Surveying Institute(Qingdao Geological Exploration Development Bureau), Qingdao 266100, China
2.
Qingdao Institute of Marine Geology, China Geological Survey, Qingdao 266071, China
3.
Huangdao Branch Monitoring Center of Qingdao Ecological Environment Bureau, Qingdao 266500, China
4.
First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China

More Information

Corresponding author: SUN Jilin, qdsunjilin@126.com

Received Date: 28 March 2021

Publish Date: 28 September 2021

Abstract

Abstract

The Jimo geothermal hot spring is an important pillar for local economy in the Qingdao region for years. The supply of hot water has gradually become insufficient with time, and many environment problems have appeared. In this paper, upon the basis of the study of regional geological background, hydrochemical and isotopic compositions of the geothermal water from the Jimo Hot Spring were systematically analyzed for the years of 2007, 2008 and 2014, in addition to the geochemistry of surrounding rocks. The research results show that the Jimo hot spring owes its origin to the unique structural conditions and excellent water storage conditions. Water is recharged from atmospheric precipitation. It goes to the deep where it is heated by deep crustal heat flow. Due to over-extraction of hot water since last decade, the geothermal water circulation rate of the hot spring has accelerated significantly. The main ions components such as Na⁺and Cl⁻, as well as the hydrogen and oxygen isotope compositions, show quite significant differences caused by multi-endmember mixing and water-rock interaction. In order to improve the management of the hot spring, it is suggested that long-term seasonal and interannual observations and hydrochemical simulation be established to provide scientific monitoring for the development and management of hot spring and geothermal resources.
- geothermal water /
- hydro-geochemistry /
- forming mechanism /
- Jimo Hot-spring

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