NDLI: Estudio geofísico aplicado a la evaluación del recurso geotermal en el sudeste de Entre Ríos

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Estudio geofísico aplicado a la evaluación del recurso geotermal en el sudeste de Entre Ríos

Content Provider	Semantic Scholar
Author	Favetto, Alicia B. Pomposiello, Cristina Sainato, Claudia Mabel Dapeña, Cristina Dapeña Guida, Nora
Copyright Year	2005
Abstract	Geophysical study applied to the evolution of the geothermal resource in the southeastern Entre Rios. The Guarani Aquifer System is a large transboundary groundwater reservoir shared by Brazil, Uruguay, Paraguay, and Argentina. It forms part of the Parana and Chacoparanense sedimentary basins. The geological units related to this system are the Triassic-Jurassic eolian and fluvial sandstones of the Piramboia and Botucatu Formations, and the Serra Geral Basalts which present clastic intercalations (Solari Member). This effusive Cretaceous complex covers the sandstones and provides a high-confinement degree. This aquifer is one of the most important fresh groundwater reservoirs in the world. Geoelectrical methods were used to describe the geometry of the geological units and to determine the depth of the crystalline basement, the presence of intercalated clastic deposits, and the existence of thermal waters in the southeast of the Entre Rios province, Argentina. Geoelectrical models were obtained from a set of fourteen Vertical Electrical Soundings carried out in the vicinity of Gualeguaychu, Aldea San Antonio, Concepcion del Uruguay, and San Jose towns. These models indicate that the basement is at a depth of around 900 m, except in those places where the sedimentary sequence does not appear, in which case it is found between 800 and 670 meters. Analyzing all the features and the results obtained, we conclude that the main factor determining the presence of the sediments which contain the Guarani Aquifer System in this area is the structural setting which is directly related to the depth of the crystalline basement
Starting Page	197
Ending Page	206
Page Count	10
File Format	PDF HTM / HTML
Volume Number	60
Alternate Webpage(s)	http://www.scielo.org.ar/pdf/raga/v60n1/v60n1a18.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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