Geochemical evolution and the problems arising from the use of water from the Arroyo Marín aquifer (Archidona-Málaga)
Keywords:
Trías de Antequera, Gypsum karst, HydrologyAbstract
The chemical facies from the stream Arroyo Marin, the largest tributary to the river Guadalhorce, is consideredto be worthy of study, due to the high selenium content in the waters emanating from the numerous springsfound to the left margin of the stream. These waters considerably modify the organoleptic characteristics of theriver Guadalhorce, which serves as an important source of water for the province of Malaga. Furthermore, froma health safety point of view, these waters present high concentrations of magnesium and nitrate, rendering themunsuitable for human consumption. This is an important consideration, given that the areas is popular as acountry treking destination.The aquifer under analysis is also characterised by the imposing activity of the Archidona gypsum karst, whoserainfall cachment area has numerous sinkholes. The water is subsequently drained into the ground through a littleknown laberynth of subterranean conections, which help determine the hydrochemical facies of the terrain.Downloads
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