RT Journal Article
T1 Integrated geophysical methods for studying the karst system of Gruta de las Maravillas (Aracena, Southwest Spain)
A1 Martínez Moreno, Francisco José
A1 Galindo-Zaldívar, Jesús
A1 Pedrera, Antonio
A1 Teixidó, Teresa
A1 Ruano, Patricia
A1 Peña, José Antonio
A1 González Castillos, María Lourdes
A1 Ruiz-Constán, Ana
A1 López-Chicano, Manuel
A1 Martín-Rosales, Wenceslao
AB In this study we contrast the results of different geophysical methods in order to describe the karst system surrounding of the Gruta de las Maravillas cave (Aracena, Spain). A comprehensive study of the geophysical responses of the known cavity was carried out, after which several sections were studied to detect the karst architecture and cave continuity. To ensure precision, the inner 3D-topography of the cave was determined by classical geodetic techniques and a digital terrain model was performed with differential GPS. The microgravity method was used to obtain the residual gravity map of the entire study zone, whose minima could be related to caves. Then, the negative gravity anomalies were analyzed to plan several lines for implementing further geophysical methods: magnetic profiles (MP), electrical resistivity tomography (ERT), induced polarization (IP), 2D seismic prospection (refraction tomography and reflection sections) and ground penetrating radar (GPR). The resulting models for each line explored were integrated with detailed geological maps to establish the unknown continuity of the caves. Finally, we discuss the suitability of each geophysical technique for cave detection in marble with sulfur host rock and propose the best procedures to constrain their geometries.
PB Elsevier
SN 0926-9851
YR 2014
FD 2014
LK https://hdl.handle.net/20.500.14352/95240
UL https://hdl.handle.net/20.500.14352/95240
LA eng
NO Martínez-Moreno, F. J., Galindo-Zaldívar, J., Pedrera, A., Teixido, T., Ruano, P., Peña, J. A., González-Castillo, L., Ruíz-Constán, A., López-Chicano, M., Martín-Rosales, W. (2014). Integrated geophysical methods for studying the karst system of Gruta de las Maravillas (Aracena, Southwest Spain). Journal of Applied Geophysics, 107, 149-162.
NO Ministerio de Ciencia e Innovación (España)
DS Docta Complutense
RD 17 abr 2025