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Villaseca González, Carlos ; Barbero González, Luis C. | E. Schweizerbart'sche Verlagsbuchhandlung | 1994Two broad series of peraluminous granite types can be distinguished in the Central System of Spain. The first group consists of cordierite-bearing granites that are moderately peraluminous in composition (peraluminous S-type granites, PS). The s[...]texto impreso
In Central Spain, it is possible to distinguish two main types of peraluminous late-Hercynian granites: the PI types and the PS types. The distinction between both types is made on the basis of differences in peraluminosity (PS types are more pe[...]texto impreso
Relics of HP-MT eclogitic assemblages related to the first metamorphic stage of the Hercynian orogeny in the Sierra de Guadarrama (Spanish Central System, SCS) are preserved as boudins of pre-Ordovician metabasites enclosed by felsic gneisses. T[...]texto impreso
Villaseca González, Carlos ; López García, José Ángel ; Barbero González, Luis C. | Sociedad Geológica de España | 2005Combined lead, sulphur and oxygen isotopes have been analysed in ore (galena and sphalerite) and associated (quartz, barite) minerals from the Mazarambroz Pb-Zn mineralization. Lead isotopic model ages in galenas cluster around 121 ± 8 Ma in goo[...]texto impreso
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Barbero González, Luis C. ; Jabaloy Sánchez, Antonio ; Gómez Ortiz, David ; Pérez Peña, José Vicente ; Rodríguez Peces, Martín Jesús ; Tejero López, Rosa ; Estupiñán Letamendi, Jenny ; Azdimousa, A. ; Vázquez Vílchez, Mercedes | 2011This work represents an initial attempt to link the evolution of the topography in relation to the general tectonic framework of western Morocco. For this purpose, in a section of the Western Moroccan Meseta different tools are combined in order[...]texto impreso
In the Hercynian Anatectic Complex of Toledo (ACT) the anatectic granitoids include leucogranitic leucosomes, leucogranitic massifs, and restite-rich granites. They show a broad range of initial Sr and Nd isotope ratios from 0.71 I to 0.720 and [...]texto impreso
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Barbero González, Luis C. ; Glasmacher, U. A. ; Villaseca González, Carlos ; López García, José Ángel ; Martín Romera, Cristina | Springer Science Business Media | 2005Abstract In the Montes de Toledo area, located in the axial part of the Central Hercynian zone, a long-term thermo-tectonic evolution can be deduced from apatite fission-track (AFT) data in conjunction with tight geological constraints derived f[...]texto impreso
Villaseca González, Carlos ; Martín Romera, Cristina ; Barbero González, Luis C. | Elsevier Sciences Ltd. | 2001Granulite terranes from Central Spain are Hercynian anatectic areas of mid-crustal levels (P-T conditions: 750-800 ° C and 4-6 kb), The granulite xenolith suite of the same sector comes from the lower crust as deduced from their P-T estimates (8[...]texto impreso
Villaseca González, Carlos ; Downes, Hilary ; Pin, Christian ; Barbero González, Luis C. | Oxford University Press | 1999Xenolith-bearing alkaline ultrabasic dykes were intruded into the of the Hercynian basement of the Spanish Central System in early Mesozoic times. The suite of lower-crustal xenoliths in the dykes divided into three groups: felsic peraluminous g[...]texto impreso
El complejo anatectico de toledo esta constituido por orcas metamórficas de alto grado, fundamentalmente granulitas metapeliticas y por granitoides sin-orogenicos catazonales. Las condiciones del clímax metamorfico, esencialmente sincrónico con [...]texto impreso
Ignacio San José, Cristina de ; Muñoz García, Mercedes ; Sagredo Ruiz, Juana ; Barbero González, Luis C. | Sociedad Geológica de España. | 2002The mafic-ultramafic, alkaline Montana Blanca-Milocho pluton, which is part o f the northernmost outcrop of the Basal Complex of the island of Fuerteventura, Canary Islands, is spatially associated to the Jablitos alkaline-carbonatitic complex. [...]texto impreso
Villaseca González, Carlos ; Barbero González, Luis C. ; Herreros Villanueva, Víctor Manuel | Royal Society of Edinburgh, 1980-2007. | 1998Conventional rock c1assifieation diagrams do not distinguish the variety of peraluminous rock series. Moreover, peraluminous granite types have not becn clearly discriminated in recent revisions. The study of several peraluminous series in diffe[...]texto impreso
Villaseca González, Carlos ; Martín Romera, Cristina ; De la Rosa Díaz, Jesús Damián ; Barbero González, Luis C. | Elsevier Science B.V., Amsterdam. | 2003Accessory minerals are thought to play a key role in controlling the behaviour of certain trace elements such as REE, Y, Zr, Th and U during crustal melting processes under high-grade metamorphic conditions. Although this is probably the case at[...]
