Aspectos petrogenéticos de la granodiorita de Los Pedroches (Sector Central del batolito de Los Pedroches, Córdoba, España)
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Se ha realizado un estudio petrológico y geoquímico detallado de la granodiorita de Los Pedroches y de sus enclaves microgranitoides (sensu VERNON, 1983). Tanto en granodiorita como en enclaves se han obtenido datos de elementos ma¬yores y trazas en roca total (incluidos REE) y datos de microsonda electrónica para las fases minerales mayoritarias.
Se concluye que tanto las rocas estudiadas como sus enclaves pueden haber sido generados a partir de fundido(s) procedente(s) de un mismo protolito cortical, puesto que los datos geoquímicos de los enclaves no permiten inferir una hibri¬dación de material cortical con cantidades significativas de material exótico. Se sugiere una explicación alternativa para la generación de los enclaves micrograni¬toides estudiados, que permite explicar tanto su naturaleza ígnea como la totali¬dad de rasgos geoquímicos.
A detailed petrologic and geochemical study of Los Pedroches granodiorite and its microgranitoid enclaves (sensu VERNON, 1983) has been performed. Whole- rock major and trace elements (including REE) Chemical data and electrón micro- probé mineral analysis of mayor phases have been obtained, both from grano- diorites and microgranitoid enclaves. It is concluded that both studied rocks and their enclaves can have been genera- ted from melt(s) derived from the same crustal protolith, since geochemical data from enclaves do not permit to deduce an hybridization of crustal melts with sig- nificants amounts of exotic material. An alternative explanation of studied mi- crogranitoid enclaves, allowing to interprete both their igneous character and all their observed geochemical features is suggested.
A detailed petrologic and geochemical study of Los Pedroches granodiorite and its microgranitoid enclaves (sensu VERNON, 1983) has been performed. Whole- rock major and trace elements (including REE) Chemical data and electrón micro- probé mineral analysis of mayor phases have been obtained, both from grano- diorites and microgranitoid enclaves. It is concluded that both studied rocks and their enclaves can have been genera- ted from melt(s) derived from the same crustal protolith, since geochemical data from enclaves do not permit to deduce an hybridization of crustal melts with sig- nificants amounts of exotic material. An alternative explanation of studied mi- crogranitoid enclaves, allowing to interprete both their igneous character and all their observed geochemical features is suggested.
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Teodosio Donaire Romero, Emilio Pascual Martínez. Aspectos petrogenéticos de la granodiorita de Los Pedroches (Sector Central del batolito de Los Pedroches, Córdoba, España). Cadernos do Laboratorio Xeolóxico de Laxe: Revista de xeoloxía galega e do hercínico peninsular, ISSN 0213-4497, Nº 17, 1992, págs. 223-240.











