Download PDF by Silvia Leonor Lagorio,Haroldo Vizán,Silvana Evangelina Geuna: Early Cretaceous Volcanism in Central and Eastern Argentina

By Silvia Leonor Lagorio,Haroldo Vizán,Silvana Evangelina Geuna

This e-book analyzes the Early Cretaceous volcanic approaches in Misiones Province and in Sierra Chica de Córdoba (Argentina). The volcanism in Misiones is tholeiitic and belongs to the Parana Magmatic Province (PMP), which extends all through South the United States. against this, the volcanism in Córdoba is geographically limited and of alkaline nature, representing a potassic locality peripheral to the PMP. to appreciate the explanations of and geodynamic approaches all for those volcanisms, a brand new 40Ar /39Ar of 129.6 ± 1 Ma of a trachyte from Sierra Chica de Córdoba is gifted. This courting issues out that the volcanism in Sierra Chica de Córdoba a bit postdates PMP lavas. additionally, complementary geochemical analyses from Misiones Province are offered and in comparison with these from the total PMP on the way to represent its source

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Read or Download Early Cretaceous Volcanism in Central and Eastern Argentina During Gondwana Break-Up (SpringerBriefs in Earth System Sciences) PDF

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