Caracterización de la geometría de la Fosa de Navamuño (Sistema Central Español) aplicando técnicas geofísicas
- Rosa M. Carrasco 1
- Jesús Sánchez 2
- Alfonso Muñoz Martín 3
- Javier de Pedraza 3
- David Domínguez Villar 4
- Blanca Ruiz Zapata 5
- Daniel Abel Schaad 6
- 1 Universidad de Castilla-La Mancha. Toledo
- 2 Universidad de Castilla La Mancha. Ciudad Real
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3
Universidad Complutense de Madrid
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- 4 Centro Nacional de Investigación sobre la Evolución Humana (CENIEH). Burgos
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5
Universidad de Alcalá
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6
Consejo Superior de Investigaciones Científicas
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- Rafael Baena Escudero (ed. lit.)
- José Juan Fernández Caro (ed. lit.)
- Inmaculada Guerrero Amador (ed. lit.)
Editorial: Asociación Española para el Estudio del Cuaternario
ISBN: 978-84-695-8601-3
Año de publicación: 2013
Páginas: 201-203
Tipo: Capítulo de Libro
Resumen
The Navamuño basin, located in the high sector of the Cuerpo de Hombre valley (Sierra de Bejar), was partly occupied by a glacier during the Late Pleistocene. The basin is a ~ 14 Ha pseudoendorheic depression with boundaries controlled by fault lineaments and the left lateral moraine of the Cuerpo de Hombre paleoglacier. The geometry of the base of the basin and the thickness of sediments that contain were studied together with the relationship of these deposits with the structural elements and moraine sediments bordering the basin. Eight 2D electrical resistivity tomography sections were acquired by nine vertical electrical sounding logs. Although heterogeneous, the maximum thickness of the deposit filling the basin is of approximately 20 m in some sectors, with electro-layers under the surficial soil. The depression is interpreted as a subsidence basin fill with fluvioglaciar and fluviotorrential deposits with episodes of local shallow pond/bog peat sedimentation that was controlled by the fractures affecting the granite.