Petrología de diques doleríticos y basaltos, Pérmico superior, en el Macizo de Cinco Villas (Pirineo Navarro)

• Autores: Esther Lasheras Adot, Marceliano Lago San José, J. García Bellés, Enrique Arranz Yagüe
• Localización: Geogaceta, ISSN 0213-683X, Nº. 25, 1998, págs. 115-118
• Idioma: español
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• Resumen

  • The Upper Permian magmatism in the Cinco Villas Massif (Navarra, Western Pyrenees), is represented in two kinds ofcogenetic products: a) three reduced basins, with strongly altered basaltic sills and b) dolerite dykes, with two types (augite-rich and plagioclase rich), outcropping in Yanci-Aranaz area. The study of the chemical composition ofthe piroxenes indicates a sub-alkaline to alkaline affinity for thjs magmatism