Mantle derived crystal-poor rhyolitic ignimbrites: Eruptive mechanism from geochemical and geochronological data of the Piedra Parada caldera, Southern Argentina

Trace elements, isotopic modeling and U-Th-Pb SHRIMP zircon age constraints are used to reconstruct the eruption history and magmatic processes of the Piedra Parada Caldera. In the early Eocene, the crystal-poor Barda Colorada ignimbrite (BCI), having >>15% micro-porphyritic crystals with resp...

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Bibliographic Details
Main Authors: Eugenio Aragon, Antonio Castro, Juan Diaz-Alvarado, Lucio Pinotti, Fernando D′eramo, Manuel Demartis, Jorge Coniglio, Irene Hernando, Carmen Rodriguez
Format: Article
Published: Elsevier 2018-09-01
Series:Geoscience Frontiers
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