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Volume 2017 (2017), Article ID 2395730, 13 pages
Research Article

Groundwater Chemistry and Overpressure Evidences in Cerro Prieto Geothermal Field

Instituto de Geofísica, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, 04510 Mexico City, Mexico

Correspondence should be addressed to Ivan Morales-Arredondo

Received 19 May 2017; Revised 30 October 2017; Accepted 19 November 2017; Published 18 December 2017

Academic Editor: Ian Clark

Copyright © 2017 Ivan Morales-Arredondo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In order to understand the geological and hydrogeological processes influencing the hydrogeochemical behavior of the Cerro Prieto Geothermal Field (CP) aquifer, Mexico, a characterization of the water samples collected from geothermal wells was carried out. Different hydrochemical diagrams were used to evaluate brine evolution of the aquifer. To determine pressure conditions at depth, a calculation was performed using hydrostatic and lithostatic properties from CP, considering geological characteristics of the study area, and theoretical information about some basin environments. Groundwater shows hydrogeochemical and geological evidences of the diagenetic evolution that indicate overpressure conditions. Some physical, chemical, textural, and mineralogical properties reported in the lithological column from CP are explained understanding the evolutionary process of the sedimentary material that composes the aquifer.