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Early Cretaceous Volcanism in Central and Eastern Argentina During Gondwana Break-Up

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Early Cretaceous Volcanism in Central and Eastern Argentina During Gondwana Break-Up/ by Silvia Leonor Lagorio, Haroldo Vizán, Silvana Evangelina Geuna.
Author:	Lagorio, Silvia Leonor.
other author:	Vizán, Haroldo.
Description:	X, 141 p. 39 illus. in color.online resource. :
Contained By:	Springer Nature eBook
Subject:	Historical geology. -
Online resource:	https://doi.org/10.1007/978-3-319-29593-0
ISBN:	9783319295930

Early Cretaceous Volcanism in Central and Eastern Argentina During Gondwana Break-Up
Lagorio, Silvia Leonor.

Early Cretaceous Volcanism in Central and Eastern Argentina During Gondwana Break-Up[electronic resource] /by Silvia Leonor Lagorio, Haroldo Vizán, Silvana Evangelina Geuna. - 1st ed. 2016. - X, 141 p. 39 illus. in color.online resource. - SpringerBriefs in Earth System Sciences,2191-589X. - SpringerBriefs in Earth System Sciences,.

Introduction -- Volcanism of Sierra Chica of Córdoba -- Volcanism of Serra Geral in Misiones Province -- Paleoreconstruction of Pangea during the Early Cretaceous volcanism in Córdoba and Misiones Provinces and its location respect to the seismic structure of the mantle -- Discussion and geodynamical proposals for the alkaline volcanism of Córdoba Province and Paraná Magmatic Province -- Conclusions.

This book analyzes the Early Cretaceous volcanic processes 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 throughout South America. In contrast, the volcanism in Córdoba is geographically restricted and of alkaline nature, representing a potassic locality peripheral to the PMP. To understand the causes of and geodynamic processes involved in these volcanisms, a new 40Ar /39Ar of 129.6 ± 1 Ma of a trachyte from Sierra Chica de Córdoba is presented. This dating points out that the volcanism in Sierra Chica de Córdoba slightly postdates PMP lavas. Moreover, complementary geochemical analyses from Misiones Province are presented and compared with those from the whole PMP in order to characterize its source.

ISBN: 9783319295930

Standard No.: 10.1007/978-3-319-29593-0doiSubjects--Topical Terms:

965790
Historical geology.

LC Class. No.: QE28.3

Dewey Class. No.: 571.7

Early Cretaceous Volcanism in Central and Eastern Argentina During Gondwana Break-Up
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520 $a This book analyzes the Early Cretaceous volcanic processes 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 throughout South America. In contrast, the volcanism in Córdoba is geographically restricted and of alkaline nature, representing a potassic locality peripheral to the PMP. To understand the causes of and geodynamic processes involved in these volcanisms, a new 40Ar /39Ar of 129.6 ± 1 Ma of a trachyte from Sierra Chica de Córdoba is presented. This dating points out that the volcanism in Sierra Chica de Córdoba slightly postdates PMP lavas. Moreover, complementary geochemical analyses from Misiones Province are presented and compared with those from the whole PMP in order to characterize its source.
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