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dc.contributor.authorGalindo, Carmen
dc.contributor.authorPortugal Ferreira, M. R.
dc.contributor.authorCasquet Martín, César
dc.contributor.authorPriem, H. N. A.
dc.description.abstractThe Plutonic Complex of Tá/iga-Barcarrota crops out in the core of the Olivenza Monesterio anticline, where it intrudes the Upper Precambrian and Lower Cambrian metasediments; As this Complex is made of a) the Circular Pluton of Barcarrota, where the core is constituted by gabbros, diorites and pegmatoides and the outer rim shows quartz monzonites, quartz syenites and hypersolvus granites, and b) the NW-SE elongated Táliga Massif, almost entirely made of biotite orthogneisses, the sampling and the ana/yses were done in accordance with this double character of the Complex. Taking into account the K/Ar ages obtained on amphiboles, biotites and muscovites and the two Rb/Sr «isochrones» (whole rocks), it is concluded that 1) the Táliga Massif has an intrusion age of 525±2.5 MA. and a subsecuent pervasive recrysta/lization during the first hercynian phase, 385 ± 17 MA., and 2) the Barcorrota Complex has an intrusion age of 505±5 MA., as it is shown by the K/Ar and the Rb/Sr systematics. Aliso the Barcarrota Plutonic rocks have Iower initia/ SP7/Sr86 than the Táliga orthogneisses pointing to a mande versus. Crostal origin for both groups of magmases_ES
dc.publisherSociedad Geológica de Españaes_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subject.otherRb/Sr datationges_ES
dc.subject.otherPlutonic complex Tálisa-Barcarrotaes_ES
dc.titleDataciones Rb/Sr en el complejo plutónico Táliga Barcarrota (CPTB) (Badajoz)es_ES

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Atribución-NoComercial-SinDerivadas 3.0 España
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España

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