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Geophysical Prospecting for Geothermal Resources in the South of the Duero Basin (Spain)

Department of Cartographic and Land Engineering, University of Salamanca, Higher Polytechnic School of Avila, Hornos Caleros 50, 05003 Avila, Spain
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Energies 2020, 13(20), 5397; https://doi.org/10.3390/en13205397
Received: 28 August 2020 / Revised: 29 September 2020 / Accepted: 7 October 2020 / Published: 15 October 2020
(This article belongs to the Special Issue Thermal Response Tests for Shallow Geothermal Systems)
The geothermal resources in Spain have been a source of deep research in recent years and are, in general, well-defined. However, there are some areas where the records from the National Institute for Geology and Mining show thermal activity from different sources despite no geothermal resources being registered there. This is the case of the area in the south of the Duero basin where this research was carried out. Seizing the opportunity of a deep borehole being drilled in the location, some geophysical resources were used to gather information about the geothermal properties of the area. The employed geophysical methods were time-domain electromagnetics (TDEM) and borehole logging; the first provided information about the depth of the bedrock and the general geological structure, whereas the second one gave more detail on the geological composition of the different layers and a temperature record across the whole sounding. The results allowed us to establish the geothermal gradient of the area and to discern the depth of the bedrock. Using the first 200 m of the borehole logging, the thermal conductivity of the ground for shallow geothermal systems was estimated. View Full-Text
Keywords: geothermal resources; geophysical prospecting; time-domain electromagnetics; borehole logging; geothermal gradient; thermal conductivity geothermal resources; geophysical prospecting; time-domain electromagnetics; borehole logging; geothermal gradient; thermal conductivity
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MDPI and ACS Style

Nieto, I.M.; Carrasco García, P.; Sáez Blázquez, C.; Farfán Martín, A.; González-Aguilera, D.; Carrasco García, J. Geophysical Prospecting for Geothermal Resources in the South of the Duero Basin (Spain). Energies 2020, 13, 5397. https://doi.org/10.3390/en13205397

AMA Style

Nieto IM, Carrasco García P, Sáez Blázquez C, Farfán Martín A, González-Aguilera D, Carrasco García J. Geophysical Prospecting for Geothermal Resources in the South of the Duero Basin (Spain). Energies. 2020; 13(20):5397. https://doi.org/10.3390/en13205397

Chicago/Turabian Style

Nieto, Ignacio M.; Carrasco García, Pedro; Sáez Blázquez, Cristina; Farfán Martín, Arturo; González-Aguilera, Diego; Carrasco García, Javier. 2020. "Geophysical Prospecting for Geothermal Resources in the South of the Duero Basin (Spain)" Energies 13, no. 20: 5397. https://doi.org/10.3390/en13205397

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