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Título del libro: One Century Of The Discovery Of Arsenicosis In Latin America (1914-2014): As 2014 - Proceedings Of The 5th International Congress On Arsenic In The Environment
Título del capítulo: Geological and hydrogeochemical characteristics of an aquifer with arsenic, can they help to define the As origin?

Autores UNAM:
RAMIRO RODRIGUEZ CASTILLO; MARIA AURORA ARMIENTA HERNANDEZ;
Autores externos:

Idioma:
Inglés
Año de publicación:
2014
Palabras clave:

Aquifers; Atmospheric temperature; Geothermal wells; Groundwater resources; Irrigation; Minerals; Water; Central Mexico; Different origins; Geothermal activity; Geothermometers; Hydrogeochemical; Irrigation waters; National standard; Surface temperatures; Arsenic


Resumen:

In central Mexico, there are many regions where groundwater contains As over the national standard for drinking water. In El Bajio, Guanajuato, the presence of arsenic could be linked to igneous rocks of different origin, to the local geothermal activity and to the presence of deep faults and fractures through which hot water rises. In the area, there are geothermal wells, which have surface temperatures between 35-50°C. Isotopic studies and geothermometers indicate that water is recirculated mixed with irrigation water. Arsenic can be originated in deep rocks contained in metal sulfides or to another mineral. © 2014 Taylor & Francis Group.


Entidades citadas de la UNAM: