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Orejana García, David ; Villaseca González, Carlos ; Paterson, Bruce A. | E. Schweizerbart'sche Verlagsbuchhandlung | 2007The Permian alkaline lamprophyres from the Spanish Central System (SCS) are highly porphyritic rocks which carry a heterogeneous population of clinopyroxene and kaersutite zoned phernocrysts. Clinopyroxene phenocrysts may show 1) normal zoning ([...]texto impreso
Orejana García, David ; Villaseca González, Carlos ; Paterson, Bruce A. | Elsevier Science B.V., Amsterdam | 2006The alkaline lamprophyres and diabases of the Spanish Central System carry a heterogeneous suite of xenoliths which includes scarce pyroxenitic and hornblenditic types that can be divided in two groups: (a) pyroxenite xenoliths, including spinel[...]texto impreso
Villaseca González, Carlos ; Orejana García, David ; Paterson, Bruce A. ; Billstrom, Kjell ; Pérez-Soba Aguilar, Cecilia | E. Schweizerbart'sche Verlagsbuchhandlung | 2007Basic and intermediate meta-igneous xenoliths are very scarce within the granulite population transported by the Permian alkaline lamprophyric dyke swarmof the Spanish Central System(SCS). These xenoliths aremetaluminous pyroxene-bearing charnoc[...]texto impreso
Orejana García, David ; Villaseca González, Carlos ; Billstrom, Kjell ; Paterson, Bruce A. | Springer Science Business Media | 2008Basic to ultrabasic alkaline lamprophyres and diabases intruded within the Spanish Central System (SCS) during Upper Permian. Their high LREE, LILE and HFSE contents, together with positive Nb–Ta anomalies, link their origin with the infiltratio[...]texto impreso
Villaseca González, Carlos ; Orejana García, David ; Paterson, Bruce A. | Elsevier Science B.V., Amsterdam | 2007There is a significant enrichment in some trace elements in the major residual minerals of peraluminous granulite xenoliths from the lower crust. Those trace elements are released from the breakdown of accessory phases at high-T granulite-facies[...]
