RT Journal Article
T1 Pizarras y metacuarcitas como pavimentos de exteriores: las rocas de Bernardos (Provincia de Segovia)
A1 García del Cura, M. Ángeles
A1 Bernabéu, A.
A1 Benavente, David
A1 La Iglesia, Á.
A1 Ordóñez Delgado, Salvador
AB The slates and metaquartzites of Bernardos (N of the Sierra of the Guadarrama) are studied as ornamental rocks. A detail characterisation of the mineralógicaI, petrological and petrophysics properties was realised.These metamorphic rocks consist of quartz, plagioclase, muscovite, clorite and biotite, and often the ilmenite is an abundant accessory mineral.The influence of the anisotropy on the physical properties is evaluated. In particular, the hydric behaviour and the abrasion and slip resistance show a pronounced directional dependence produce by the rock fabric.The physical properties of the marketed rocks depend strongly on direction of the cutting and type of finished. Thus, the types of commercial stones with the slab surface parallel to the cleavage plane (Pizarras de Bernardos) and to bedding plane (Cuarcita Segovia) present adequate properties as paving.On the other hand, the types of commercial stones, in which the direction of the cutting is non-parallel to rock structure, present excellent aesthetic properties. The commercial name of this kind of rocks is "Filita" (Filita Gris Cordillera) and is appropriated as cladding.
PB Sociedad Geológica de España
SN 1576-5172
YR 2004
FD 2004
LK https://hdl.handle.net/20.500.14352/125622
UL https://hdl.handle.net/20.500.14352/125622
LA spa
NO García del Cura, M. Ángeles, et al. «Pizarras y metacuarcitas como pavimentos de exteriores: las rocas de Bernardos (Provincia de Segovia)». Geotemas, n.º 6-1, 2004, pp. 259-62, https://sge.usal.es/archivos/GEO_TEMAS/Geo_temas_6_1sge.pdf.
NO Ministerio de Fomento (España)
DS Docta Complutense
RD 21 mar 2026