干旱区生态环境知识资源中心(Arid): Geochemical evolution and tracing of groundwater salinization using different ionic ratios, multivariate statistical and geochemical modeling approaches in a typical semi-arid basin

Arid

DOI	10.1016/j.jconhyd.2020.103742
	Geochemical evolution and tracing of groundwater salinization using different ionic ratios, multivariate statistical and geochemical modeling approaches in a typical semi-arid basin
	Sunkari, Emmanuel Daanoba; Abu, Mahamuda; Zango, Musah Saeed
通讯作者	Sunkari, ED (corresponding author), Nigde Omer Halisdemir Univ, Fac Engn, Dept Geol Engn, Main Campus, TR-51240 Nigde, Turkey.
来源期刊	JOURNAL OF CONTAMINANT HYDROLOGY
ISSN	0169-7722
EISSN	1873-6009
出版年	2021
卷号	236
英文摘要	The vulnerability of semi-arid basin aquifers to long-term salinization due to the dissolution of groundwater chemical constituents is a major global problem. Despite this, resilient techniques of tracing the sources of groundwater salinization in semi-arid basin aquifers are still evolving due to the aquifer complexities. This study proves the effectiveness of the use of different ionic ratios, multivariate statistical, and geochemical modeling approaches to understand groundwater evolution and trace salinization in the semi-arid Pru Basin of Ghana. The basin is homogeneously composed of argillaceous sediments of the Oti/Pendjari Group of the Voltaian Supergroup. A total of 81 samples from hand-dug wells and boreholes within the Pru Formation of the Oti/Pendjari Group in the basin were collected for this study. Quantitative analysis of the data shows that the abundance of major ions follows the order: Na+ -> Ca2+ -> Mg2+ -> K+ and Cl- -> HCO3 -> SO42-. The groundwater evolved from Na-HCO3, Na-HCO3-Cl, Na-Ca-HCO3 to Na-Mg-HCO3 water types in a decreasing order of abundance. Calculated meteoric genesis index (r2) indicates the dominance of deep meteoric water percolation effects on groundwater chemistry. Groundwater chemistry is principally controlled by water-rock interaction, ion exchange reactions, weathering (carbonate and silicate), salinization, and anthropogenic activities. Different ionic ratio plots and spatial distribution maps reveal the prevalence of salinization in the aquifer system, especially around the southwestern part of the basin. Revelle index assessment of the groundwater salinization level indicates that about 19.8% of the groundwater samples with RI values >0.5 is influenced by salinization. The groundwater salinization results from saline water intrusion from adjacent aquifers, mixing effects, ion exchange reactions, water-rock interaction, and anthropogenic activities. The geochemical modeling involving thermodynamic calculation of mineral saturation indices in PHREEQC indicates that groundwater is largely saturated with respect to majority of the carbonate and silicate mineral phases.
英文关键词	Groundwater chemistry Groundwater salinization Ionic ratio plots Multivariate statistical analyses Geochemical modeling Semi-arid Pru Basin
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000609170400002
WOS关键词	SEAWATER INTRUSION ; COASTAL AQUIFERS ; QUALITY ; NORTHERN ; FLUORIDE ; HYDROGEOCHEMISTRY ; CHEMISTRY ; PLAIN ; GHANA ; AREA
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347995
作者单位	[Sunkari, Emmanuel Daanoba] Nigde Omer Halisdemir Univ, Fac Engn, Dept Geol Engn, Main Campus, TR-51240 Nigde, Turkey; [Sunkari, Emmanuel Daanoba] Univ Mines & Technol, Fac Mineral Resources Technol, Dept Geol Engn, POB 237, Tarkwa, Ghana; [Abu, Mahamuda; Zango, Musah Saeed] CK Tedam Univ Technol & Appl Sci, Fac Earth & Environm Sci, Dept Earth Sci, POB 24, Navrongo, Ghana
推荐引用方式 GB/T 7714	Sunkari, Emmanuel Daanoba,Abu, Mahamuda,Zango, Musah Saeed. Geochemical evolution and tracing of groundwater salinization using different ionic ratios, multivariate statistical and geochemical modeling approaches in a typical semi-arid basin[J],2021,236.
APA	Sunkari, Emmanuel Daanoba,Abu, Mahamuda,&Zango, Musah Saeed.(2021).Geochemical evolution and tracing of groundwater salinization using different ionic ratios, multivariate statistical and geochemical modeling approaches in a typical semi-arid basin.JOURNAL OF CONTAMINANT HYDROLOGY,236.
MLA	Sunkari, Emmanuel Daanoba,et al."Geochemical evolution and tracing of groundwater salinization using different ionic ratios, multivariate statistical and geochemical modeling approaches in a typical semi-arid basin".JOURNAL OF CONTAMINANT HYDROLOGY 236(2021).