DOI: 10.5194/hess-19-3937-2015
Scopus记录号: 2-s2.0-84942578086
论文题名: Groundwater flow processes and mixing in active volcanic systems: The case of Guadalajara (Mexico)
作者: Hernández-Antonio A ; , Mahlknecht J ; , Tamez-Meléndez C ; , Ramos-Leal J ; , Ramírez-Orozco A ; , Parra R ; , Ornelas-Soto N ; , Eastoe C ; J
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 9 起始页码: 3937
结束页码: 3950
语种: 英语
Scopus关键词: Chemical analysis
; Cluster analysis
; Groundwater
; Groundwater flow
; Hydrochemistry
; Isotopes
; Landforms
; Manganese
; Mixing
; Multivariant analysis
; Principal component analysis
; Sodium
; Temperature
; Volcanoes
; Water pollution
; Distribution patterns
; Groundwater chemistry
; Groundwater contamination
; Hydrological process
; Multi variate analysis
; Relative contribution
; Stable water isotopes
; Sulfate concentrations
; Groundwater pollution
; concentration (composition)
; groundwater flow
; groundwater pollution
; hydrological modeling
; hydrothermal fluid
; isotopic analysis
; mixing
; tritium
; volcanology
; water chemistry
; well water
; Guadalajara [Jalisco]
; Jalisco
; La Primavera Geothermal Field
; Mexico [North America]
英文摘要: Groundwater chemistry and isotopic data from 40 production wells in the Atemajac and Toluquilla valleys, located in and around the Guadalajara metropolitan area, were determined to develop a conceptual model of groundwater flow processes and mixing. Stable water isotopes (δ2H, 18O) were used to trace hydrological processes and tritium (3H) to evaluate the relative contribution of modern water in samples. Multivariate analysis including cluster analysis and principal component analysis were used to elucidate distribution patterns of constituents and factors controlling groundwater chemistry. Based on this analysis, groundwater was classified into four groups: cold groundwater, hydrothermal groundwater, polluted groundwater and mixed groundwater. Cold groundwater is characterized by low temperature, salinity, and Cl and Na concentrations and is predominantly of Na-HCO3-type. It originates as recharge at "La Primavera" caldera and is found predominantly in wells in the upper Atemajac Valley. Hydrothermal groundwater is characterized by high salinity, temperature, Cl, Na and HCO3, and the presence of minor elements such as Li, Mn and F. It is a mixed-HCO3 type found in wells from Toluquilla Valley and represents regional flow circulation through basaltic and andesitic rocks. Polluted groundwater is characterized by elevated nitrate and sulfate concentrations and is usually derived from urban water cycling and subordinately from agricultural return flow. Mixed groundwaters between cold and hydrothermal components are predominantly found in the lower Atemajac Valley. Twenty-seven groundwater samples contain at least a small fraction of modern water. The application of a multivariate mixing model allowed the mixing proportions of hydrothermal fluids, polluted waters and cold groundwater in sampled water to be evaluated. This study will help local water authorities to identify and dimension groundwater contamination, and act accordingly. It may be broadly applicable to other active volcanic systems on Earth. © Author(s) 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78422
Appears in Collections: 气候变化事实与影响
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作者单位: Centro Del Agua Para América Latina y El Caribe, Tecnológico de Monterrey, Monterrey, Mexico; División de Geociencias Aplicadas, Instituto Potosino de Investigación Científica y Tecnológica, San-Luis-Potosí, Mexico; Department of Geosciences, University of Arizona, Tucson, United States
Recommended Citation:
Hernández-Antonio A,, Mahlknecht J,, Tamez-Meléndez C,et al. Groundwater flow processes and mixing in active volcanic systems: The case of Guadalajara (Mexico)[J]. Hydrology and Earth System Sciences,2015-01-01,19(9)