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Stella Poma, Adriana Ramos, Vanesa D. Litvak, Sonia Quenardelle, Emma B. Maisonnave, Iris Díaz
Pág. 249 - 274
A Miocene to Pliocene (13 to 4.6 Ma) mostly pyroclastic sequence is exposed along the Iglesia Valley, to
the east of the former main volcanic arc. This area is a transitional region between Cordillera Frontal and Precordillera,
over the flat slab segment...
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Felipe Espinoza,Diego Morata,Mireille Polve,Yves Lagabrielle,Rene Maury,Aude de la Rupelle,Christele Guivel,Joseph Cotten,Herve Bellon,Manuel Suarez
Pág. 300 - 328
We presenta chronological (K-Ar), petrologic and geochemical study (major and trace elements, SrNd isotopes) ofMiddle Miocene (ca. 16-14 Ma) calc-alkaline rocks (basalts to andesites) extruded in the present-day back-arc region ofCentral Patagonia (Zebal...
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Juan Pablo Radic
Pág. 220 - 246
The Cordillera Principal at 36 to 39°S is an excellent place to address the relationship between tectonics and volcanism. Based on tectonostratigraphic analysis of the Cenozoic basins it has been possible to recognize a clear spatial coincidence between ...
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Daniela Welkner,Estanislao Godoy,Heinz-J Bernhardt
Pág. 3 - 15
The Late Cretaceous Del Salto Pluton is one of the four Late Jurassic to Late Miocene intrusives that are recognized ca. 60 km inboard from the eastern limit of the Patagonian Batholith, close to the Chilean-Argentinian border. The pluton is a fluorite-b...
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Martín Turienzo,Luis Dimieri,Cristina Frisicale,Vanesa Araujo,Natalia Sanchéz
Pág. 317 - 357
In the Argentinean side of the Andes at 34°40?S, the Cenozoic Andean orogeny produced the thick-skinnedMalargüe fold-and-thrust belt and the easternmost basement uplift of the Cordillera Frontal. Integrating balanced structuralcross-sections with previou...
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Uwe Altenberger,Roland Oberhänsli,Benita Putlitz,Klaus Wemmer
Pág. 65 - 81
Five Miocene intrusive complexes are located along the N-trending, nearly trench-parallel San Lorenzo-Balmaceda Lineament in southern Patagonia. These complexes are characterized by mildly alkaline to calc-alkaline magmatism. The deformation and kinemati...
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José Cabello
Pág. 1 - 23
A review of gold and gold bearing base metals deposits in Chile, indicate the existence of at least six different type of ore deposits, most largely formed during the Cenozoic with predominance in the Miocene. Mesozoic deposits are common but less releva...
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Anna Kutovaya, Karsten F. Kroeger, Hannu Seebeck, Stefan Back and Ralf Littke
In the past two decades, numerical forward modeling of petroleum systems has been extensively used in exploration geology. However, modeling of petroleum systems influenced by magmatic activity has not been a common practice, because it is often associat...
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Katja Deckart,Estanislao Godoy,Alfredo Bertens,Ayesha Saeed
Pág. 1 - 31
Four Middle-to-Late Miocene barren plutonic complexes that occur between the giant porphyry copper deposits of the central Chilean Andes were selected for U-Pb LA-ICPMS geochronology and Hf-isotope systematics on single zircon grains. Major and trace ele...
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Charles R. Stern,Ricardo Floody,Domingo Espineira
Pág. 1 - 22
Mafic Mg-olivine (Fo88)+hornblende lamprophyre dikes, with Ni ~190 ppm and Cr ~390 ppm, cut late Miocene lavas in the Quebrada los Sapos a few kilometers west of the El Teniente Cu-Mo mine. These dikes have petrochemical affinities with other less primit...
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Christopher Halls,Albrecht Schneider
Pág. 41 - 56
Resumen. Los depositos de estano del mundo estan ubicados en diferentes ambientes geotectonicos y asociados a series de Rocas igneas con caracteristicas quimicas y petrologicas especificas. En la Provincia Estannifera Boliviana, la mineralizacion Esta as...
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Constantino Mpodozis,Paula Cornejo,Suzanne M. Kay,Andrew Tittler
Pág. 273 - 313
RESUMEN. La Franja de Maricunga, de 200 km de largo, portadora de mineralizacion de metales preciosos, se extiende en el borde occidental del Altiplano de Copiapo (26-28°S) y representa el frente volcanico Oligoceno-Mioceno de la zona sur de los Andes Ce...
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Constantino Mpodozis,Paula Cornejo,Suzanne M. Kay,Andrew Tittler
Pág. 273 - 313
RESUMEN. La Franja de Maricunga, de 200 km de largo, portadora de mineralizacion de metales preciosos, se extiende en el borde occidental del Altiplano de Copiapo (26-28°S) y representa el frente volcanico Oligoceno-Mioceno de la zona sur de los Andes Ce...
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