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Paulo Quezada,Francisco Hervé,Mauricio Calderón,Mark Fanning,Robert Pankhurst,Estanislao Godoy,Octavio Urbina,Rodrigo Suárez
Pág. 54 - 74
Previously undated low-grade metamorphic rocks from the Puerto Cisnes-Queulat area (44°30? S) contain detrital zircons of mid-Oligocene age (ca. 28 Ma). Their outcrops represent the easternmost occurrence of the late Oligocene to early Miocene marine vol...
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Francisco Hervé,Mauricio Calderón,Mark Fanning,Robert Pankhurst,Carlos W. Rapela,Paulo Quezada
Pág. 301 - 317
Previous work has shown that Devonian magmatism in the southern Andes occurred in two contemporaneous belts: one emplaced in the continental crust of the North Patagonian Massif and the other in an oceanic island arc terrane to the west, Chaitenia, which...
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Francisco Hervé, Francisco José Fuentes, Mauricio Calderón, Mark Fanning, Paulo Quezada, Robert Pankhurst, Carlos Rapela
Pág. 1 - 16
Serpentinites and fresh or partially serpentinized harzburgite crop out in the western slope of the
North Patagonian Andes of continental Chiloé (41°44?-42°12?S). These rocks are spatially associated with low-grade
metamorphic rocks containing Cenozoic d...
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Francisco Herve,Mauricio Calderon,Mark Fanning,Stefan Kraus,Robert Pankhurst
Pág. 253 - 275
Five new SHRIMP U-Pb zircon ages are reported for gneisses and foliated plutonic rocks belonging to the Tierra del Fuego igneous and metamorphic basement complex (TFIMC), obtained from the bottom of borehole cores through the Magallanes Basin. Three ofth...
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Robert J. Pankhurst,Ian L. Millar,Francisco Herve
Pág. 35 - 42
ABSTRACT. A U-Pb zircon age 0f 285.7+/-1.5 Ma is presented for granodiorite from the Chanchoquin pluton of the Guanta Unit, Elqui Superunit of the Elqui-Limari Batholith. This is the first U-Pb zircon age reported from this batholith and is interpreted a...
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Richard Fortey,Robert J. Pankhurst,Francisco Herve
Pág. 133 - 143
RESUMEN. Trilobites devonicos de Buill, Chile (42°S). Se describe un trilobites calmoniido (Calmoniidae gen. nov. aff. Bainella Rennie, 1930) un trilobites lacopoide indeterminado y un coral zafrentido, recolectados en rodados de pizarras en Buill, Chile...
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