Use this link to cite:
http://hdl.handle.net/2183/6070 El "stock" de Peña Prieta en el contexto del magmatismo de la unidad de Pisuerga-Carrion (Zona Cantábrica, N de España)
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Gallastegui, Gorka
Heredia, N.
Rodríguez Fernández, L. R.
Cuesta, A.
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Cadernos do Laboratorio Xeolóxico de Laxe, 1990, 15: 203-217 ISSN: 0213-4497
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Abstract
[Resumen] Se describe en este trabajo el stock intrusivo de Peña Prieta, el mayor y más complejo,
estructural y petrológicamente, del conjunto de rocas ígneas emplazadas en la UPC (Zona Cantábrica) durante una etapa de actividad ígnea tardihercínica de naturaleza calcoalcalina.
Asimismo se sugiere una hip6tesis general para justificar el desarrollo de este magmatismo postectónico en la parte más externa de una cordillera de plegamiento y un emplazamiento en condiciones permitidas, con ciertas afinidades con modelos de emplazamiento por subsidencia de caldera, para el stock considerado.
[Abstract] The Peña Prieta intrusive stock is described in this paper. It is the largest intrusive body belonging to the set of igneous rocks emplaced in the PCU (Cantabrian Zone) during a calc-alkaline late hercynian magmatic stage. It is also the most complex on the basis of its structural and petrological features. A general hypothesis is suggested to justify the occurence of this postectonic magmatism in the most external part (foreland basin) of the folded belt. We also propose a model of emplacement for this stock, under permisive conditions, which shows sorne resemblances with the cauldron subsidence model.
[Abstract] The Peña Prieta intrusive stock is described in this paper. It is the largest intrusive body belonging to the set of igneous rocks emplaced in the PCU (Cantabrian Zone) during a calc-alkaline late hercynian magmatic stage. It is also the most complex on the basis of its structural and petrological features. A general hypothesis is suggested to justify the occurence of this postectonic magmatism in the most external part (foreland basin) of the folded belt. We also propose a model of emplacement for this stock, under permisive conditions, which shows sorne resemblances with the cauldron subsidence model.

