2020
DOI: 10.3390/w12123307
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Groundwater Isotopes in the Sonoyta River Watershed, USA-Mexico: Implications for Recharge Sources and Management of the Quitobaquito Springs

Abstract: Groundwater resources in the southwestern United States are finite and riparian and wetland areas are vulnerable to aquifer overdraft and unregulated groundwater use. Environmental isotopes and water chemistry were used to distinguish water types, recharge mechanisms, and residence time along several reaches of the Sonoyta River and Quitobaquito Springs located near the U.S.-Mexico border. Areas located upgradient from the Sonoyta River, such as the Puerto Blanco Mountains and La Abra Plain, are supported by l… Show more

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Cited by 7 publications
(5 citation statements)
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“…The area is poorly constrained to the south, and this pattern may extend further south than indicated in Figure 11B. The (δ 18 O, δ 2 H) values of groundwaters derived from local precipitation (−7.6‰ and −51%; [30]) are slightly lower than the average winter precipitation (δ 18 O and δ 2 H) values (−7.2‰ and −47‰), but are consistent with the isotope composition of the largest 30% of rain events (−7.5‰ and −50‰, Figure 5B; [30,[47][48][49]). The extensive alluvial fans observed at the base of the Gila Range suggest that mountain system recharge and focused recharge in ephemeral streams are likely to occur at the mountain front, as in other semi-arid basins in southern Arizona [50][51][52].…”
Section: General Patternssupporting
confidence: 69%
“…The area is poorly constrained to the south, and this pattern may extend further south than indicated in Figure 11B. The (δ 18 O, δ 2 H) values of groundwaters derived from local precipitation (−7.6‰ and −51%; [30]) are slightly lower than the average winter precipitation (δ 18 O and δ 2 H) values (−7.2‰ and −47‰), but are consistent with the isotope composition of the largest 30% of rain events (−7.5‰ and −50‰, Figure 5B; [30,[47][48][49]). The extensive alluvial fans observed at the base of the Gila Range suggest that mountain system recharge and focused recharge in ephemeral streams are likely to occur at the mountain front, as in other semi-arid basins in southern Arizona [50][51][52].…”
Section: General Patternssupporting
confidence: 69%
“…The study of water resources in mining areas is very important because of the increasing demand for and pollution and depletion of groundwater [1][2][3]. Groundwater is an important component of the hydrological cycle, and even more so in recharge areas of the regional aquifers, and in some cases, as a source of water for human consumption [4][5][6].…”
Section: Introductionmentioning
confidence: 99%
“…Isotopic composition in springwater has been recognized by its application in understanding hydrological systems, sources of water, recharge elevations, residence time, and solutes and identifying geochemical reactions [1][2][3][4][5][6]9] and the release and transport of toxic elements, which provides information on the dispersion and management of groundwater resources [11][12][13]. The isotopes of hydrogen (δ 2 H) and tritium (δ δ3 H), oxygen (oxygen-18 or δ 18 O), and the ratio of strontium-87 to strontium-86 ( 87 Sr/ 86 Sr) have long been used in hydrology [9,11,12].…”
Section: Introductionmentioning
confidence: 99%
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“…Essentially, hydrogeochemical and hydrodynamic information needs to be dealt with holistically, with special emphasis put on their interactions. The methodological approach of the present work dictated the synergetic and combinational consideration of various tools and methods, e.g., classic hydrogeochemical approaches, the use of bivariate plots and/or molar ratios [2][3][4][5][6], hydrodynamic characterizations [7][8][9], hydrogeochemical modelling [10][11][12], multivariate statistics [13][14][15][16][17][18] and environmental isotopes [19][20][21][22][23].…”
Section: Introductionmentioning
confidence: 99%