| Autor: |
Pérez Quezadas J; Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad de México, México., Cabrera Sillas YG; Departamento de Geología, Universidad de Sonora, Hermosillo, México., Monreal R; Departamento de Geología, Universidad de Sonora, Hermosillo, México., Rangel Medina M; Instituto de Investigaciones del Desierto y el Agua Subterránea S.C., Hermosillo, México., Morales Arredondo JI; Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad de México, México., Sánchez-Murillo R; Department of Earth and Environmental Sciences, University of Texas at Arlington, Arlington, TX, USA. |
| Jazyk: |
angličtina |
| Zdroj: |
Isotopes in environmental and health studies [Isotopes Environ Health Stud] 2023 Mar; Vol. 59 (1), pp. 48-65. Date of Electronic Publication: 2023 Feb 08. |
| DOI: |
10.1080/10256016.2023.2171032 |
| Abstrakt: |
A hydro-geochemical characterization was conducted in the northern part of the Sonora River basin, covering an area of 9400 km 2 . Equipotential lines indicated that groundwater circulation coincided with the surface water flow direction. Based on the groundwater temperature measured (on average ∼21 °C), only one spring exhibited thermalism (51 °C). Electrical conductivity (160-1750 μ S/cm), chloride and nitrate concentrations (>10 and >45 mg/L) imply highly ionized water and anthropogenic pollution. In the river network, δ 18 O values revealed a clear modern meteoric origin. Focused recharge occurred mainly from the riverbeds during the rainy season. During the dry season, diffuse recharge was characterized by complex return flows from irrigation, urban, agricultural, mining, and livestock. Drilled wells (>50 m) exhibited a strong meteoric origin from higher elevations during the rainy season with minimal hydrochemical anomalies. Our results contribute to the knowledge of mountain-front and mountain-block recharge processes in a semi-arid and human-altered landscape in northern Mexico, historically characterized by limited hydrogeological data. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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