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Natalia Villalba,Hugo Murcia,Edith Jerez,Daniel Piedrahita,Dayana Schonwalder-Ángel,Andrés Pardo-Trujillo,Sebastián Echeverri
Pág. 181 - 200
The Combia Volcanic Province (~11-5 Ma), is a volcaniclastic sequence located in northwest Colombia between the Central and Western cordilleras at 5-6° N latitude. Its source is associated with the volcanic activity of the magmatic arc produced by the su...
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Gustavo W. Bertotto, Maurizio Mazzucchelli, Tommaso Giovanardi, Rommulo V. Conceiçao, Alberto Zanetti, Manuel E. Schilling, Mauro I. Bernardi, Alexis D. Ponce, Tiago Jalowitzki, Fernanda Gervasoni and Anna Cipriani
Huanul is a shield volcano with several lava flows hosting mantle xenoliths erupted during the Pleistocene (0.84 ± 0.05 Ma). It is located in the southern part of the Payenia Volcanic Province, which is among the largest Neogene-Quaternary volcanic provi...
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Nikolai Berdnikov, Victor Nevstruev, Pavel Kepezhinskas, Ivan Astapov and Natalia Konovalova
While gold partitioning into hydrothermal fluids responsible for the formation of porphyry and epithermal deposits is currently well understood, its behavior during the differentiation of metal-rich silicate melts is still subject of an intense scientifi...
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Reynaldo Charrier,Lasafam Iturrizaga,Sébastien Carretier,Vincent Regard
Pág. 240 - 278
We present here a reconstruction of the post late Miocene landscape evolution of the western slope of the Andean Cordillera Principal near 34°20? S. We base our analysis on the available geological information, a morphological characterization of the lan...
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Derek J. Weller, María Eugenia de Porras, Antonio Maldonado, César Méndez, Charles R. Stern
Pág. 229 - 248
Sediment cores from lakes and bogs in the Río Cisnes valley contain tephra from explosive eruptions of
volcanoes in the southern part of the Andean Southern Volcanic Zone (SSVZ). These tephra, which thicken and coarsen
to the west, are attributed to erup...
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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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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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Pamela Jara,Reynaldo Charrier
Pág. 174 - 209
New stratigraphical and geochronological constraints for the Mezo-Cenozoic deposits in the High Andes of central Chile between 32° and 32°30?S: Structural and palaeogeographic implications. Attempts to differentiate geological units of the Andean Princip...
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Pedro Busquets,Carlos Oscar Limarino,Raúl Cardó,Isabel Méndez-Bedia,Gloria Gallastegui,Ferrán Colombo,Nemesio Heredia,Silvia N. Césari
Pág. 172 - 195
This paper addresses the stratigraphic analysis of the Late Paleozoicsequence outcroping in the Sierra de Castaño area (Cordillera Frontal, San Juan Province, Argentina). In this region three major stratigraphic units have been recognized. The lower one ...
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Leandro D?Elia,Martin Muravchik,Juan R. Franzese,Andres Bilmes
Pág. 106 - 132
The Neuquen Basin constitutes one of the most conspicuous features of the Andean margin of Gondwana during Mesozoic times. The initial syn-rift infill (Late Triassic-Early Jurassic) of this ensialic extensional basin involved a profuse magmatic activity ...
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