Geochemical characteristics and genesis of the high-temperature geothermal systems in the north section of the Sanjiang Orogenic belt in southeast Tibetan Plateau

Yi, Lei; Qi, Jihong; Li, Xiao; Xu, Mei; Zhang, Xiaoyu; Zhang, Qiang; Tang, Yuee

doi:10.1016/j.jvolgeores.2021.107244

Cited by 15 publications

(18 citation statements)

References 28 publications

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“…Li-silicate minerals, such as lithium mica and chert, are usually formed in volcanic and magmatic rocks, and Li can enter water in a dissolved state under hydrolysis (Zhang et al, 2003). However, the Li concentration in the hot springs of the JSJFZ is not as high as that in the Kangding area, indicating a lack of magmatic source in the JSJFZ (Yi et al, 2021).…”

Section: Origin Of Trace Elements Hot Spring Watersmentioning

confidence: 77%

“…Na + in the spring water is mainly from the alternating dissolution and cation adsorption of albite, potassium feldspar, anorthite and other minerals. HCO 3 − mainly come from the dissolution of carbonate rocks such as limestone and dolomite (Yi et al, 2021). As for sample N2, it locates in "Zone 5", where non-carbonic acid hardness exceeds 50%.…”

Section: Figurementioning

confidence: 98%

“…More importantly, the Batang geothermal field is a significant part of the eastern Tibetan Plateau geothermal belt (Tang et al, 2017). It is the geothermal field with the highest reservoir temperature (200 °C-225 °C) along the Sanjiang Orogenic belt, and it has experienced a deep cycle (Yi et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies have focused on the source of heat and chemical characteristics of some springs in this area (Shi and wang, 2017;Tang et al, 2017;Hou et al, 2018;Tian et al, 2018Tian et al, , 2019Zhou et al, 2020a;Yi et al, 2021;Liu et al, 2022). However, limited work has been reported on the relationship between the hydro-chemical characteristics of hot springs and fault activity.…”

Section: Introductionmentioning

confidence: 99%

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Relationship between hydrogeochemical characteristics of hot springs and seismic activity in the Jinshajiang fault zone, Southeast Tibetan Plateau

Liu

Zhou²,

Liu³

et al. 2023

Front. Earth Sci.

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Significant anomalous hydrogeochemical changes in hot spring water are detected during strong seismic cycles. It is now necessary to clarify the relationship between tectonic movements, earthquakes and the evolution of hot springs. In this paper, laboratory analyses of major, trace elements, δD, δ18O and 87Sr/86Sr values of 28 hot spring waters in the Jinshajiang fault zone (JSJFZ) in the northwestern boundary of the Sichuan-Yunnan block were conducted. The results showed that the primary source of water for JSJFZ hot springs was atmospheric precipitation. The geothermal reservoir temperature variation based on the silicon enthalpy mixing model ranged from 73 to 272°C. And the circulation depth range was 1.2–5.4 km. The segmentation characteristics of the 87Sr/86Sr values were related to the influence of source rocks on groundwater cycle processes. A conceptual model of the hydrologic cycle of hot springs explained the spatial distribution of earthquakes associated with tectonic movements. The Batang segment had the strongest water-rock reaction, the highest reservoir temperature and the deepest circulation depth; meanwhile, it was also an earthquake prone area. The fluid circulation of the JSJFZ corresponds well with the seismicity, which indicates that the hydrological characteristics of the hot spring water in a fracture zone play a crucial role in receiving information on seismic activity.

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Section: Origin Of Trace Elements Hot Spring Watersmentioning

confidence: 77%

Section: Figurementioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Relationship between hydrogeochemical characteristics of hot springs and seismic activity in the Jinshajiang fault zone, Southeast Tibetan Plateau

Liu

Zhou²,

Liu³

et al. 2023

Front. Earth Sci.

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“…Shallow geothermal energy is one of the most promising energy resources in China, given its unlimited distribution and recyclability [1,2]. However, due to the effect of hydrogeology, porosity, and other factors of rock and soil materials, there are many restrictions to its practical design, construction, and operation [3].…”

Section: Introductionmentioning

confidence: 99%

Improvements in the Water Retention Characteristics and Thermophysical Parameters of Backfill Material in Ground Source Heat Pumps by a Molecular Sieve

et al. 2022

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The thermophysical properties of backfill material (BM) in a heat exchange borehole significantly influence the heat exchange effect of ground source heat pumps (GSHPs). Several treatments such as compaction and adding bentonite, cement, and fine sands are often used to improve the thermophysical properties. In this study, a 3A molecular sieve (3A-MS), a type of porous material, was added to the BM to enhance its water maintaining capacity. Three types of backfill materials with different additive contents, named as BM-0, BM-1, and BM-2, were examined. The variation of the BM properties such as the soil–water characteristic curve (SWCC), thermal conductivity, specific heat capacity, and thermal diffusivity with the groundwater content were investigated through a series of experiments and simulations. A scanning electron microscope (SEM), an energy dispersive spectrometer (EDS), and the BET method for specific surface area pore size analysis were used to characterize the material. The results indicated that the specific heat capacity improved with the water content whereas the thermal conductivity and thermal diffusivity decreased with the water content. The variation of the buried pipe outlet temperature with the change of the thermal physical parameters of the BM were researched by a numerical simulation and theoretical calculations; the results showed that BM-2 could raise the heat transfer rate per meter by 45.9% in summer and 118.4% in winter compared with the backfill materials without groundwater (NW). The research results provide theoretical support for the improvement of BM for ground source heat pump projects where abundant groundwater is available.

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Typical geothermal waters in the Ganzi–Litang fault, western Sichuan, China: hydrochemical processes and the geochemical characteristics of rare-earth elements

et al. 2022

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Geochemical characteristics and genesis of the high-temperature geothermal systems in the north section of the Sanjiang Orogenic belt in southeast Tibetan Plateau

Cited by 15 publications

References 28 publications

Relationship between hydrogeochemical characteristics of hot springs and seismic activity in the Jinshajiang fault zone, Southeast Tibetan Plateau

Relationship between hydrogeochemical characteristics of hot springs and seismic activity in the Jinshajiang fault zone, Southeast Tibetan Plateau

Improvements in the Water Retention Characteristics and Thermophysical Parameters of Backfill Material in Ground Source Heat Pumps by a Molecular Sieve

Typical geothermal waters in the Ganzi–Litang fault, western Sichuan, China: hydrochemical processes and the geochemical characteristics of rare-earth elements

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