Condicionantes geomorfológicos y sedimentológicos para la conservación excepcional del bosque subfósil holoceno del valle de Sandria (Campisábalos, Guadalajara)
- M.A. Perucha 1
- J. Vegas 1
- M. Génova 2
- P. Carrasco 3
- J.M. Postigo-Mijarra 2
- C. Morla 2
- F. Gómez-Manzaneque 2
- F. Martínez-García 2
- D. Porras 4
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1
Instituto Geológico y Minero de España
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2
Universidad Politécnica de Madrid
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3
Universidad de Salamanca
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- 4 Geoland Services SL
ISSN: 1576-5172
Year of publication: 2016
Issue Title: IX CONGRESO GEOLÓGICO DE ESPAÑA
Issue: 16
Pages: 245-248
Type: Article
More publications in: Geotemas (Madrid)
Abstract
This paper presents the results of the geomorphological, sedimentological and geophysical study of the Holocene sedimentary infill of Sandria Valley (Campisábalos, Guadalajara province), as a part of the study of existing paleontological sites in the area. From the extraordinary woody material found in paleontological sites, new paleoecological data have been obtained that will allow us to obtain the patterns of change of vegetation. The sedimentary infill of Sandria Valley shows a thickness ranging between 2 and 6 m. It is composed of fine sand, silt, organic marls and peat which have been interpreted as a marshy lacustrine sedimentary environment. The closure of the Sandria river valley could be due to several circumstances: the valley occlusion by progradation of an alluvial fan, the possible existence of a small structural high and/or the differential dissolution of the carbonate substrate which has originated locally small basins that match the depocentres.