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...
Main Authors: | Eugenio Aragon, Antonio Castro, Juan Diaz-Alvarado, Lucio Pinotti, Fernando D′eramo, Manuel Demartis, Jorge Coniglio, Irene Hernando, Carmen Rodriguez |
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Format: | Article |
Language: | English |
Published: |
Elsevier
2018-09-01
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Series: | Geoscience Frontiers |
Online Access: | http://www.sciencedirect.com/science/article/pii/S1674987117301603 |
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