ZusammenfassungMehrere geb~nderte GesteinskSrper innerhalb der Valencia de las Torres-Formation der Azuaga Gruppe (Badajoz-Cordoba-Achse) werden als Trondheimite interpretiert. Eine chemische Analyse der wichtigsten Elemente der Proben be-st~tigt, dab die Variabilit~it im Chemismus mit einem einzigen Differentiationsvorgang erkl~rbar ist. Die systematische petrographische und chemische Analyse deutet auf eine Trondheimite-Tonalit~t Abfolge, die hochmetamorphen Gtirtein zugeordnet wird. Ihre Entstehung wird auf teilweises Schmelzen eines Tholeites in einer Subduktionszone herzynischen Alters zu~ckgefiihrt. AbstractSeveral banded bodies of the Valencia de las Torres Formation in the Azuaga Group (Badajoz-Cordoba axis) are defined as trondhjemites. Principal component analysis of major elements shows that the chemical variability of the samples is compatible with a single differentiation process. Systematic study of their petrography and chemistry points to trondhjemite-tonalite series belonging to high grade metamorphic belts and their generation is postulated as being due to partial melting of a tholeite in a subduction zone, for which a hercynian age is suggested. ResumenDiversos cuerpos bandeados de la Formaci6n Valencia de las Torres en el Grupo de Azuaga (Eje Badajoz-Cdrdoba) se definen como trondhjemitas. Del Amilisis de Componentes Principales sobre elementos mayores se desprende que la variabilidad quimica de las muestras es compatible con un s61o proceso de diferenciaci6n. E1 estudio sistemfitico de sus caracteres petrogr~ificos y qu~micos pone de manifiesto su relaci6n con series trondhjemltico-tonaliticas propias de cinturones metamdrficos de alto grado y, coherentemente, se postula su generacidn por fusidn parcial de una thoMta en una zona de subducci6n, para la cual, de acuerdo con los datos geocronoldgicos disponibles se sugiere una edad herdnica. KpaTKOe co~epxanHeMHorHe no~ocqaT~ie Te~a nopo~ B qbopMaIg4n Valencia de la Torres Ha rpyrmbi Azuaga (oc~ Badajoz-Cordoba) nnTepnpeTHpym, KaK TpoH~,eMHThI. XmuH~tecrd~I~ aHaaH3 Ba~mefimrrx 3aeMe~lTOB rip06 nO~lTBep/IHJI, tlTO BapHaI~H XgMrI3ua MO:t~IO O6%~ctn~ITh C IIOMOmr~O o;~Horo e~rmcwBeaRoro npoi~ecca ~Hqbqbepem~aI~rrm IleTporpaqbrmecr, m~ n XUMUqecKrr~ aHa~H3, npoBo~r~-M~Ifi CHCTeMaTrNeCKH, yKa3/,maeT rm TO, qTO TporIIIbe-MIlT-TOHaJItlTOBa~I CBHTa MO)KeT 6blTb OTttecetIa K IIO~ICy BbrCOKOfI cTeneHH MeTaMopqbrr3Ma. OHa o6pa3oBaaac~ B pe3yJil,TaTe qacTia--qHoro pactIslaBneHll,q ToJIeI;ITOB B 3otte 3acact,iBaHI~ B nepHo;~ repIIvntcKoro Bo3pacTa.
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