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Browsing by Author "Díez Montes, Alejandro"
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Caracterización geológica de los afloramientos de El Pimpollar, extremo nororiental de la Zona Surportuguesa
Two volcanic units can be distinguished in the “El Pimpollar” outcrop (eastern South-Portuguese Zone). The Lower Unit is composed mainly of submarine dacites and andesites, with some subordinated basalts and trachyandesites. ... -
Datación palinoestratigráfica del volcanismo en la sección de la Ribera del jarama (Faja Pirítica Ibérica, Zona Surportuguesa)
Rodríguez, R. M.; Díez Montes, Alejandro; Leyva, F.; Matas, J.; Almarza, J.; Donaire, M. (Sociedad Geológica de España, 2002)The levels of black slates that appear through the whole series of volcanic materials, have been revealed as a high-priority objective when carrying out studies detailed in the IPB, since they are constituted as a good ... -
El Macizo de Pradorramisquedo: petrografía, geoquímica y aplicaciones industriales
Lombardero, M.; Bellido Mulas, F.; Díez Montes, Alejandro (Sociedad Geológica de España, 2002)The Pradorramisquedo massif (NW Iberian Variscan Belt) is a granitic pluton emplaced into migmatized augen gneisses and banded gneisses that of"Olio de Sapo Croup". Its intrusion is subsequent to the two main deformative ... -
Estudio petrológico y geoquímico de las vulcanitas de los afloramientos de El Pimpollar, extremo nororiental de la Zona Surportuguesa
The Lower Unit of “El Pimpollar” volcanic outcrop (South-Portuguese Zone) is mainly composed of submarine dacites and andesites, with some subordinate basalts and trachyandesites. All these volcanic materials have ... -
Geocronología U/Pb del volcanismo ácido y granitoides de la Faja Pirítica Ibérica (Zona Surportuguesa)
Dunning, G. R.; Díez Montes, Alejandro; Matas, J.; Martín Parra, L. M.; Almarza, J.; Donaire, M. (Sociedad Geológica de España, 2002)Three samples have been analyzed, two of them belong to the volcanic ones from the IPB and a third to the rocks plutonics of the BSN. The age belonging to the granitoid of Campofrio is of 354,4 +5/-4 m.y. The ages obtained ... -
Petrología del macizo granítico de Manzalvos-Castromil (NO de la Zona Centro-Ibérica)
Bellido Mulas, F.; Gallastegui, G.; Díez Montes, Alejandro (Sociedad Geológica de España, 2002)The Manzalvos-Castromil massif (NW Iberian Hercynian Belt) is mainly composed of granitoids that define an alumino-potassic association. Magmatic microgranular enclaves and scattered amphibole-biotite intermediate rocks ... -
Propuesta de estructura geológica para el depósito gigante de sulfuros masivos volcanogénicos de Río Tinto, Faja Pirítica Ibérica
New field reconnaissance around the Río Tinto Mine led to a better structural knowledge on the area. The improved map support a different geological evolution on this sector determined by an earlier extensional event, ...