干旱区生态环境知识资源中心(Arid): Assessing Groundwater Mineralization Process, Quality, and Isotopic Recharge Origin in the Sahel Region in Africa

Arid

DOI	10.3390/w11040789
	Assessing Groundwater Mineralization Process, Quality, and Isotopic Recharge Origin in the Sahel Region in Africa
	Sidibe, Aboubacar Modibo 1,2,3; Lin, Xueyu 2; Kone, Sidi 3
通讯作者	Sidibe, Aboubacar Modibo
来源期刊	WATER
ISSN	2073-4441
出版年	2019
卷号	11 期号:4
英文摘要	In the Sahel region in Africa, and in most arid regions, groundwater is the crucial source for water supply since surface water is scarce. This study aimed to understand a complex geochemical mechanism controlling the mineralization process in the Taoudeni Basin. A thousand randomly distributed groundwater samples acquired from different aquifers were used for this research. The results show that the majority of the samples observed are of the Ca2+-Mg2+-HCO3- and Na+-HCO3- types depending on the different aquifers. Mg2+ and Ca2+ may react with HCO3- precipitating as calcite and dolomite. The Na+-HCO3- groundwater type is mainly derived from the ion exchange process. This type indicates a paleo-marine depositional environment or that it passes through paleo-marine channels. Calcium of the standard Ca2+-HCO3- groundwater type exchanges with the sodium. Groundwater is characterized by the water-rock interactions that indicate the chemical alteration of the rock-forming minerals influencing its quality by a dissolution. The H-2 and O-18 stable isotopes designate the evaporation importance in the basin and recharge with recent rain. The bicarbonate-type presence in groundwater suggests that it is young and fresh water. Multivariate statistical methods, notably Principal Component Analysis and Hierarchical Cluster Analysis, confirm affinities among the aquifers and identify three main clusters grouped into two water types. Cluster 1 consists of Infra-Cambrian and Quaternary aquifers, whereas cluster2 includes the Precambrian basement and Permian-Triassic aquifers.
英文关键词	groundwater hydrochemical isotopes multivariate statistical analysis Taoudeni Basin
类型	Article
语种	英语
国家	Peoples R China ; Mali
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000473105700159
WOS关键词	STATISTICAL-ANALYSIS ; WATER-QUALITY ; AQUIFER ; CHEMISTRY ; EXAMPLE ; BAY
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/2XILL650/219197
作者单位	1.Jilin Univ, Lab Groundwater & Environm, Changchun 130021, Jilin, Peoples R China; 2.Jilin Univ, Coll Construct Engn, Changchun 130021, Jilin, Peoples R China; 3.Natl Directorate Hydraul, Sq Patrice Lumumba,BP 66, Bamako, Mali
推荐引用方式 GB/T 7714	Sidibe, Aboubacar Modibo,Lin, Xueyu,Kone, Sidi. Assessing Groundwater Mineralization Process, Quality, and Isotopic Recharge Origin in the Sahel Region in Africa[J],2019,11(4).
APA	Sidibe, Aboubacar Modibo,Lin, Xueyu,&Kone, Sidi.(2019).Assessing Groundwater Mineralization Process, Quality, and Isotopic Recharge Origin in the Sahel Region in Africa.WATER,11(4).
MLA	Sidibe, Aboubacar Modibo,et al."Assessing Groundwater Mineralization Process, Quality, and Isotopic Recharge Origin in the Sahel Region in Africa".WATER 11.4(2019).