Las paleoalteraciones sobre el zócalo hercínico ibéricoaproximación a una interpretación regional a partir de perfiles españoles
- Molina, E.
- García Talegón, J.
- Vicente, M. A.
ISSN: 0213-4497
Año de publicación: 1994
Número: 19
Páginas: 261-271
Tipo: Artículo
Otras publicaciones en: Cadernos do Laboratorio Xeolóxico de Laxe: Revista de xeoloxía galega e do hercínico peninsular
Resumen
The Hercynian basement of the Iberian Peninsula has undergone different stages of supergenic weathering which has given rise to a superposition of several "weathering mantles". Remnants ofan old weathering mantle, Mesozoic in age, and related to a planation surface older than the Alpine tectonic phases, have been found. Nowadays the fragments of this old surface appear unleveled and/or fossilized by younger sediments. Likewise, related to the "Raña" sediments of Upper Neogene-Lower Pleistocene age, appears a weathering mantle, probably active today, which is rich in kaolinite and with strong hydromorphic features.