Andean Magmatism

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Andean Magmatism

Author : Russell S. Harmon
ISBN : UTEXAS:059173023311060
Genre : Science
File Size : 28.69 MB
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Category: Science

Andean Magmatism

ISBN : 9781468473353
Genre : Science
File Size : 76.69 MB
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Destructive plate margin magmagenesis is one of the most intensely studied and widely debated topics in the earth sciences at present. Calc-alkaline volcanic and plutonic rocks in orogenic settings exhibit such a diversity of composition and character that the subducted oceanic lithosphere, the overlying 'enriched' lithospheric mantle and the lower continental crust all have been advocated recently as the primary source region for island-arc and continental-margin basaltic to andesitic magmas. The role of the upper continental crust is also a matter of continuing controversy. It is clear that crustal contamination is a common, but not universal, feature of destructive plate margin magmatism. Whether this contamination is introduced at source by subduction-related processes or occurs during magma transit by bulk anatexis and magma mixing, selective contamination or coupled fractional crystallization-assimilation mechanisms is central to most current discussions of andesite petrogenesis. This book presents a series of papers which directly address these and other important geological and geochemical problems within the context of the Mesozoic-Cenozoic calc-alkaline magmatism characteristic of the Andean Cordillera of western South America. Although it is aimed primarily at postgraduate students and researchers familiar with the Andes, it is also a useful general reference for workers in other fields who wish to gain an insight into current thoughts, ideas and speculations on 'andesitic' magmatism at destructive plate margins.
Category: Science

Magmatism At A Plate Edge

Author : Wallace S. Pitcher
ISBN : STANFORD:36105032875481
Genre : Batholiths
File Size : 56.68 MB
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Category: Batholiths

The Southern Central Andes

Author : Heinrich Bahlburg
ISBN : 9783540459040
Genre : Science
File Size : 70.98 MB
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This volume gives an overview of the geotectonic evolution of the Central Andes. The contributions cover the whole spectrum of geoscientific research: geology, petrology, geochemistry, geophysics and geomorphology. They deal with the period from late Precambrium up to the youngest phenomena in the Quaternary. The book is of value for regional geologists as well as for scientists interested in orogenic processes related to active continental margins.
Category: Science

Andean Copper Deposits

Author : Francisco Camus
ISBN : STANFORD:36105021120212
Genre : Copper ores
File Size : 77.51 MB
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Category: Copper ores

Pacrim 99 Congress

Author : Graeme Weber
ISBN : UOM:39015022931607
Genre : Geology
File Size : 26.78 MB
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Category: Geology

Earthquake Chemistry

Author :
ISBN : STANFORD:36105030886894
Genre : Earthquake prediction
File Size : 61.18 MB
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Category: Earthquake prediction

The Ra L Condestable Iron Oxide Copper Gold Deposit Central Coast Of Peru

Author : Antoine de Haller
ISBN : STANFORD:36105123578606
Genre : Fluid inclusions
File Size : 52.64 MB
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Cette thèse de doctorat est dédiée au gisement de cuivre-or de type "iron oxide copper-gold" de Raúl-Condestable, localisé à 90 km au sud de Lima, sur la côte péruvienne. Le minerai est composé de chalcopyrite, pyrite, pyrrhorite et magnétite, sous la forme de disséminations, remplissages de porosité, remplacements et veines dans des roches amphibolitisées appartenant à une série volcanosédimentaire du Crétacé inférieur.
Category: Fluid inclusions