干旱区生态环境知识资源中心(Arid): Characterisation of an artesian groundwater system in the Valle de Iglesia in the Central Andes of Argentina

Arid

DOI	10.1007/s00531-021-02058-0
	Characterisation of an artesian groundwater system in the Valle de Iglesia in the Central Andes of Argentina
	Hinzer, Ilka; Altherr, Manuel; Christiansen, Rodolfo; Schreuer, Jurgen; Wohnlich, Stefan
通讯作者	Hinzer, I (corresponding author), Ruhr Univ Bochum, Inst Geol Mineral & Geophys, Bochum, Germany.
来源期刊	INTERNATIONAL JOURNAL OF EARTH SCIENCES
ISSN	1437-3254
EISSN	1437-3262
出版年	2021
英文摘要	Despite its location in the Arid Diagonal of South America, the Valle de Iglesia contains a number of artesian springs, the most important of which are the Banos Pismanta thermal springs, which release water at similar to 45 degrees C. Despite the scarcity of water resources in the Valle de Iglesia, there have been few attempts to study these springs in any detail. In this study, > 50 springs are described, each characterised by small volcano-like mud structures up to 15 m tall. Hydrogeological and hydrochemical analyses of the groundwater system in the Valle de Iglesia were performed to improve our understanding of the subsurface water flow and of the connections between the subsurface water and the associated systems of faults and springs. Site measurements were made, and the concentrations of the main ions and trace elements were also determined by laboratory analysis of water samples. The samples obtained from the spring were rich in Na-HCO3-SO4 and Na-SO4-HCO3, but the surface water samples from the Agua Negra River were rich in Ca-SO4-HCO3. The temperature of the springs was in the range 20-45 degrees C. Both the temperatures and the ionic ratios are compatible with the presence of a deep hydraulic circulation system. The oxidation of sulphide minerals nearby the magmatic rocks and volcanic edifices causes the mobilisation of arsenic, which accumulates in the groundwater due to the low annual rainfall. The concentrations of arsenic in the spring water samples were therefore higher than the current limit set by the World Health Organisation, meaning that the water is not suitable for human consumption.
英文关键词	Argentina Valle de Iglesia Hydrochemistry Mud volcano Groundwater Arid regions Ionic ratios Hydrochemical processes
类型	Article ; Early Access
语种	英语
开放获取类型	Other Gold
收录类别	SCI-E
WOS记录号	WOS:000658093500001
WOS关键词	FLAT-SLAB ; SAN-JUAN ; BASIN ; VOLCANOS ; WATER
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352248
作者单位	[Hinzer, Ilka; Altherr, Manuel; Schreuer, Jurgen; Wohnlich, Stefan] Ruhr Univ Bochum, Inst Geol Mineral & Geophys, Bochum, Germany; [Christiansen, Rodolfo] Univ Nacl San Juan, San Juan, Argentina; [Christiansen, Rodolfo] Consejo Nacl Invest Cient & Tecn, Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF, Argentina
推荐引用方式 GB/T 7714	Hinzer, Ilka,Altherr, Manuel,Christiansen, Rodolfo,et al. Characterisation of an artesian groundwater system in the Valle de Iglesia in the Central Andes of Argentina[J],2021.
APA	Hinzer, Ilka,Altherr, Manuel,Christiansen, Rodolfo,Schreuer, Jurgen,&Wohnlich, Stefan.(2021).Characterisation of an artesian groundwater system in the Valle de Iglesia in the Central Andes of Argentina.INTERNATIONAL JOURNAL OF EARTH SCIENCES.
MLA	Hinzer, Ilka,et al."Characterisation of an artesian groundwater system in the Valle de Iglesia in the Central Andes of Argentina".INTERNATIONAL JOURNAL OF EARTH SCIENCES (2021).