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José Meulen Piquer Romo,Gonzalo Yáñez,Orlando Rivera,David Cooke
Pág. 223 - 239
Long-lived, high-angle fault systems constitute high-permeability zones that can localize the upward flow of hydrothermal fluids and magma throughout the upper crust. Intersections of these types of structures can develop complex interference patterns, w...
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Sebastian Herrera, Luisa Pinto, Katja Deckart, Javier Cortés, Javier Valenzuela
Pág. 87 - 122
Crustal thickening by horizontal shortening and associated deformation have been broadly considered as
prime mechanisms for mountain building in the Central Andes of western South America. However, timing and structural
style of Andean orogeny in norther...
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Felipe Coloma, Ximena Valin, Verónica Oliveros, Paulina Vásquez, Christian Creixell, Esteban Salazar, Mihai Nicolae Ducea
Pág. 147 - 178
Permian to Triassic igneous rocks cropping out in the Coastal and Frontal cordilleras in northern Chile
between 28º00?S and 30º15?S have long been interpreted to represent products of magmatism related to an extensional
tectonic setting, either as the re...
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Stella Poma,Eduardo O. Zappettini,Sonia Quenardelle,Joao O. Santos,?Magdalena Koukharsky,Elena Belousova,Neal J. McNaughton
Pág. 267 - 292
We have carried out zircon U-Pb SHRIMP dating and Hf isotope determinations as well as geochemical analyses on three plutonic units of Gondwanan magmatism that crop out in NW Argentina. Two episodes of different age and genesis have been identified. The ...
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Juan F. Presta,Pablo J. Caffe
Pág. 142 - 173
The monogenetic volcanism from the El Toro region (23º05?S-66º42?W) in NW Argentina comprises a group of low-volume (<5 km2) mafic volcanic rocks erupted during the Late Miocene-Pliocene in the northern Puna (Andean Central Volcanic Zone). The activit...
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