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Roberto Moretti, Séverine Moune, David Jessop, Chagnon Glynn, Vincent Robert and Sébastien Deroussi
The volcanic-hydrothermal geo-diversity of the Basse-Terre Island of Guadeloupe archipelago (Eastern Caribbean, France) is a major asset of the Caribbean bio-geoheritage. In this paper, we use Guadeloupe as a representative of many small island developin...
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Jorge Eduardo Bustillos A., Jorge Eduardo Romero, Alicia Guevara C., Juan Díaz-Alvarado
Pág. 47 - 77
The Tungurahua volcano (Northern Andean Volcanic Zone) has been erupting since 1999, with at least
four eruptive phases up to present. Although a dozen of research focuses in tephra fall deposits during this period, none
of them cover the full eruptive c...
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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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Alain Demant,Manuel Suarez,Rita De la Cruz
Pág. 3 - 22
In the eastern part of the central Patagonian Cordillera (45°15-45°40S), northeast of the town of Coihaique, the chronology of volcanic sequences are documented by detailed field work and twelve new K-Ar dates that have established their Late Cretaceous-...
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Francisco Fuentes,Mario Vergara,Luis Aguirre,Gilbert Feraud
Pág. 207 - 225
Eight 40Ar/39Ar ages of rocks from two different areas of the Andes at ca. 33°S, where volcanic units separated by unconformities are exposed, are reported and discussed. These areas are Cuesta de Chacabuco at the northern prolongation of the Central Val...
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Waldo Vivallo,Sergio Espinoza,Fernando Henríquez
Pág. 197 - 212
RESUMEN. El distrito ferrífero Cerro Imán, ubicado en la Cordillera de la Costa inmediatamente al noroeste de Copiapó, se compone de cuerpos m3cizos y diseminados de hierro, alojados en rocas volcánicas andesíticas de edad neocomiana. Hacia el oeste, el ...
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Jose A. Naranjo,Hugo Moreno,Carlos Emparan,Michael Murphy
Pág. 167 - 191
ABSTRACT. Recent explosive volcanism at Sollipulli volcano, southern Andes (39°S). The Solipulli volcano is a caldera that nests a ca. 2 km3 glacier. lts last eruption occurred over 700 years ago, through a parasitic cone. On the other hand, a paroxismal...
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