Isotope Geochemistry of Groundwater: Latest Advances and Prospects

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Hydrogeology".

Deadline for manuscript submissions: closed (20 May 2024) | Viewed by 763

Special Issue Editors

Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing 400700, China
Interests: groundwater; geochemical circulation; hydrological circulation; carbon sink; organic matter

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Guest Editor
Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
Interests: karst hydrogeology; stable isotopes; karst carbon sink; carbon cycle; ground water
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Karst Science/State Engineering Technology Institute for Karst Desertification Control, Guizhou Normal University, Guiyang 550001, China
Interests: karst carbon sink; groundwater nitrogen pollution; groundwater organic pollutants; karst hydrogeology

Special Issue Information

Dear Colleagues,

Groundwater plays an important role in global water supply and is the critical element supporting the Earth's ecosystem cycle. Anthropogenies and natural factors such as climate change, human pollution, and natural geochemical pollution have greatly impacted groundwater quality and its ecological value. Environmental isotopes, such as H, C, N, O, S, etc., are often used to research the mechanism of groundwater recharge and water–rock interactions, control groundwater pollution, and estimate groundwater age and renewal capacity. Hydrogen and oxygen stable isotopes are commonly used to understand water vapor sources of atmospheric precipitation, runoff segmentation, river basin runoff generation mode division, soil water transport in unsaturated zones, mutual transformation of different water bodies, and isotope hydrological models. 87Sr/86Sr and 26Mg isotopes are often used to find out the water quality genesis and hydrogeochemical processes of groundwater. δ15N, δ34S, δ18O, δ37Cl, 208Pb/206Pb, 206Pb/207Pb, 208Pb/204Pb, δ13C, δ2H, and δ81Br are also used to analyze groundwater pollution characteristics, identify groundwater pollution sources, and calculate the pollution source contribution rate. Radioactive isotopes such as 3H and 14C can not only obtain the age of groundwater but also understand the groundwater circulation.

The theme of this Special Issue is “Isotope Geochemistry of Groundwater: Latest Advances and Prospects”, focusing on new techniques and applications concerned with isotopes and geochemical variations in groundwater circulation. High-quality research papers using stable or radioactive isotopes to investigate groundwater geochemistry, hydrology, geohydrology, resource, and pollution conditions are welcome. Papers that focus on new applications of groundwater isotopes in different ecosystems and geological backgrounds are also of interest.

Dr. Qiufang He
Dr. Qiong Xiao
Prof. Dr. Jiacheng Lan
Guest Editors

Manuscript Submission Information

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Keywords

  • geochemical
  • stable isotope
  • radioactive isotope
  • groundwater
  • hydrology
  • quality
  • pollution tracking
  • geohydrology

Published Papers (1 paper)

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Research

17 pages, 9625 KiB  
Article
Hydrogeochemical Characteristics of the Geothermal System in the Woka-Cuona Rift Zone, Tibet
by Wen Zhang, Jiansong Peng and Yong Liu
Water 2024, 16(10), 1395; https://doi.org/10.3390/w16101395 - 14 May 2024
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Abstract
The Woka-Cuona rift zone on the southeastern side of the Qinghai-Tibet Plateau is characterized by complex geological background conditions, comprising three independent or semi-grabens that traverse from south to north across the Himalayan and Gangdise terranes. Conducting research on the distribution patterns and [...] Read more.
The Woka-Cuona rift zone on the southeastern side of the Qinghai-Tibet Plateau is characterized by complex geological background conditions, comprising three independent or semi-grabens that traverse from south to north across the Himalayan and Gangdise terranes. Conducting research on the distribution patterns and genesis mechanisms of geothermal resources within the Woka-Cuona rift zone has certain guiding significance for understanding the genesis mechanisms of the geothermal system in the southern Tibetan rift and its exploitation. This paper utilized methods such as data collection, ground investigations, and geochemical analyses to analyze the distribution characteristics and evolutionary processes of geothermal waters in the Cuona rift area based on the geological background conditions of the study area. The research findings demonstrate a significant correlation between the occurrence of geothermal waters in the Cuona rift zone and geological structures, with most geothermal waters primarily distributed near intersections of graben boundary faults and east–west-trending faults. Different regions exhibit variations in the intensity of geothermal activity and geochemical characteristics, with the genesis of geothermal waters associated with deep magmatic activity, characterized by Na+ and K+ as the primary cations and Cl as the primary anions. Geothermal waters mainly originate from atmospheric precipitation and snowmelt water from surrounding mountainous areas, with recharge elevations ranging from 4500 to 6200 m and an average elevation of 5400 m. Full article
(This article belongs to the Special Issue Isotope Geochemistry of Groundwater: Latest Advances and Prospects)
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