Arid
DOI10.1016/j.scitotenv.2021.149742
Processes explaining the origin and evolution of groundwater composition in the Andean Precordillera and Altiplano of the Tarapaca Region of northern Chile
Urrutia, Javier; Guimera, Jordi; Custodio, Emilio; Herrera, Christian; Jodar, Jorge; Acosta, Orlando; Anson, Isabel
Corresponding AuthorUrrutia, J (corresponding author), Univ Bernardo OHiggins, Ctr Invest & Desarrollo Ecosistemas Hidr, Santiago, Chile. ; Urrutia, J (corresponding author), Univ Antofagasta, Dept Min Engn 2030, HEUMA, Antofagasta, Chile.
JournalSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
EISSN1879-1026
Year Published2022
Volume805
Abstract in EnglishIn the arid area of northern Chile, groundwater resources in the Andean formations are essential for native populations, ecological services, mining, and other human activities. Validated conceptual hydrogeological models are required for current and future water and land management. This work aims to explain the processes controlling the origin and distribution of recharge and groundwater composition in the Andean Precordillera and Altiplano of the Tarapaca Region of northern Chile, using major solutes in spring, river, and well water, and the stable and radioactive isotopes of water oxygen, hydrogen, and dissolved inorganic carbon. The waters are mainly of the Na-Ca-SO4 type. Processes controlling the chemical evolution of waters are atmospheric dust contribution, evapo-concentration, and enhanced volcanic rock weathering, as well as halite dissolution in some locations. The isotopic composition of Precordillera eastern flank water samples follows an evaporation line, while those in the western flank, in the Altiplano, follow a line that is parallel to the local meteoric line, suggesting unsaturated zone evaporation processes of infiltrated rainfall. delta(CDIC)-C-13 contents (-2 to-27 parts per thousand) indicate mixing processes, volcanic CO2 in the Altiplano, and calcite dissolution in some sectors. In the western depression, the only recharge is due to water infiltration in creek channels. In the highland areas, 5-25% of precipitation produces recharge. The estimated groundwater renewal time in the Precordillera was 3-14 kyr. The piezometric elevation in the Precordillera due to low-permeability intrusive rocks and local recharge prevents the east-west groundwater transfer from the Altiplano to the western depression and explains why the volcanic CO2 in the Altiplano basins is not observed on the western flank. These results provide new insights for the evolution of water quality in volcanic aquifers in arid environments and provide considerations for estimating groundwater residence times using radiocarbon in areas influenced by volcanic CO2. (C) 2021 Elsevier B.V. All rights reserved.
Keyword in EnglishEnvironmental isotopes Volcanic hydrogeology Arid zones Groundwater recharge Northern Chile
SubtypeArticle
Language英语
Indexed BySCI-E
WOS IDWOS:000707627200002
WOS KeywordPAMPA DEL TAMARUGAL ; ATACAMA DESERT ; ATMOSPHERIC DEPOSITION ; ISOTOPIC COMPOSITION ; CLOSED BASIN ; RECHARGE ; CLIMATE ; WATER ; PRECIPITATION ; VARIABILITY
WOS SubjectEnvironmental Sciences
WOS Research AreaEnvironmental Sciences & Ecology
Document Type期刊论文
Identifierhttp://119.78.100.177/qdio/handle/2XILL650/364619
Affiliation[Urrutia, Javier; Herrera, Christian] Univ Bernardo OHiggins, Ctr Invest & Desarrollo Ecosistemas Hidr, Santiago, Chile; [Guimera, Jordi] AMPHOS21, Barcelona, Spain; [Guimera, Jordi] AMPHOS21, Santiago, Chile; [Custodio, Emilio] Tech Univ Catalonia UPC, Dept Civil & Environm Engn, Groundwater Hydrol Grp, Barcelona, Spain; [Custodio, Emilio] Royal Acad Sci Spain, Barcelona, Spain; [Jodar, Jorge] Inst Geol & Minero Espana IGME, Madrid, Spain; [Jodar, Jorge] Inst Geol & Minero Espana IGME, Zaragoza, Spain; [Acosta, Orlando] Gestionare ALHSUD Chilean Chapter, Santiago, Chile; [Anson, Isabel] Tragsatec, Dept Water Planning & Management, Madrid, Spain; [Urrutia, Javier] Univ Antofagasta, Dept Min Engn 2030, HEUMA, Antofagasta, Chile
Recommended Citation
GB/T 7714
Urrutia, Javier,Guimera, Jordi,Custodio, Emilio,et al. Processes explaining the origin and evolution of groundwater composition in the Andean Precordillera and Altiplano of the Tarapaca Region of northern Chile[J],2022,805.
APA Urrutia, Javier.,Guimera, Jordi.,Custodio, Emilio.,Herrera, Christian.,Jodar, Jorge.,...&Anson, Isabel.(2022).Processes explaining the origin and evolution of groundwater composition in the Andean Precordillera and Altiplano of the Tarapaca Region of northern Chile.SCIENCE OF THE TOTAL ENVIRONMENT,805.
MLA Urrutia, Javier,et al."Processes explaining the origin and evolution of groundwater composition in the Andean Precordillera and Altiplano of the Tarapaca Region of northern Chile".SCIENCE OF THE TOTAL ENVIRONMENT 805(2022).
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