干旱区生态环境知识资源中心(Arid): Recharge and Geochemical Evolution of Groundwater in Fractured Basement Aquifers (NW India): Insights from Environmental Isotopes (delta O-18, delta H-2, and H-3) and Hydrogeochemical Studies

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DOI	10.3390/w14030315
	Recharge and Geochemical Evolution of Groundwater in Fractured Basement Aquifers (NW India): Insights from Environmental Isotopes (delta O-18, delta H-2, and H-3) and Hydrogeochemical Studies
	Pradhan, Rudra Mohan; Behera, Ajit Kumar; Kumar, Sudhir; Kumar, Pankaj; Biswal, Tapas Kumar
通讯作者	Pradhan, RM (corresponding author)，Indian Inst Technol, Dept Earth Sci, Bombay 400076, Maharashtra, India.
来源期刊	WATER
EISSN	2073-4441
出版年	2022
卷号	14 期号:3
英文摘要	Considering water as a limiting factor for socio-economic development, especially in arid/semi-arid regions, both scientific communities and policymakers are interested in groundwater recharge-related data. India is fast moving toward a crisis of groundwater due to intense abstraction and contamination. There is a lack of understanding regarding the occurrence, movement, and behaviors of groundwater in a fractured basement terrane. Therefore, integrated environmental isotopes (delta O-18, delta H-2, and H-3) and hydrogeochemical studies have been used to understand the recharge processes and geochemical evolution of groundwater in the fractured basement terranes of Gujarat, NW India. Our results show that the relative abundance of major cations and anions in the study basin are Ca2+ > Na+ > Mg2+ > K+ and HCO3- > Cl- > SO42- > NO3-, respectively. This suggests that the chemical weathering of silicate minerals influences the groundwater chemistry in the aquifer system. A change in hydrochemical facies from Ca-HCO3 to Na-Mg-Ca-Cl. HCO3 has been identified from the recharge to discharge areas. Along the groundwater flow direction, the presence of chemical constituents with different concentrations demonstrates that the various geochemical mechanisms are responsible for this geochemical evolution. Furthermore, the chemical composition of groundwater also reflects that the groundwater has interacted with distinct rock types (granites/granulites). The stable isotopes (delta O-18 and delta H-2) of groundwater reveal that the local precipitation is the main source of recharge. However, the groundwater recharge is affected by the evaporation process due to different geological conditions irrespective of topographical differences in the study area. The tritium (H-3) content of groundwater suggests that the aquifer is mainly recharged by modern rainfall events. Thus, in semi-arid regions, the geology, weathering, and geologic structures have a significant role in bringing chemical changes in groundwater and smoothening the recharge process. The findings of this study will prove vital for the decision-makers or policymakers to take appropriate measures to design water budgets as well as water management plans more sustainably.
英文关键词	groundwater fractured rock hydrogeochemistry geochemical evolution environmental isotopes (delta O-18 delta H-2 and H-3) Ambaji Basin NW India socio-economic development water resource management
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000755671600001
WOS关键词	CHLORIDE MASS-BALANCE ; CARBONATE AQUIFER ; ALLUVIAL AQUIFER ; WATER ISOTOPES ; SURFACE-WATER ; BASIN ; AREA ; IDENTIFICATION ; MECHANISMS ; SIGNATURES
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376418
作者单位	[Pradhan, Rudra Mohan; Biswal, Tapas Kumar] Indian Inst Technol, Dept Earth Sci, Bombay 400076, Maharashtra, India; [Behera, Ajit Kumar] Natl Ctr Earth Sci Studies, Marine Geosci Grp, Thiruvananthapuram 695011, Kerala, India; [Kumar, Sudhir] Natl Inst Hydrol Roorkee, Hydrol Invest Div, Roorkee 247667, Uttar Pradesh, India; [Kumar, Pankaj] Inst Global Environm Strategies, Hayama, Kanagawa 210811, Japan
推荐引用方式 GB/T 7714	Pradhan, Rudra Mohan,Behera, Ajit Kumar,Kumar, Sudhir,et al. Recharge and Geochemical Evolution of Groundwater in Fractured Basement Aquifers (NW India): Insights from Environmental Isotopes (delta O-18, delta H-2, and H-3) and Hydrogeochemical Studies[J],2022,14(3).
APA	Pradhan, Rudra Mohan,Behera, Ajit Kumar,Kumar, Sudhir,Kumar, Pankaj,&Biswal, Tapas Kumar.(2022).Recharge and Geochemical Evolution of Groundwater in Fractured Basement Aquifers (NW India): Insights from Environmental Isotopes (delta O-18, delta H-2, and H-3) and Hydrogeochemical Studies.WATER,14(3).
MLA	Pradhan, Rudra Mohan,et al."Recharge and Geochemical Evolution of Groundwater in Fractured Basement Aquifers (NW India): Insights from Environmental Isotopes (delta O-18, delta H-2, and H-3) and Hydrogeochemical Studies".WATER 14.3(2022).