7   Artículos

 
en línea
Abdallah Atef, Adel A. Surour, Ahmed A. Madani and Mokhles K. Azer    
Since Antiquity, sustainable resources of gold and copper have been mined at two prominent prospects in the north Eastern Desert of Egypt, namely the south Gabel Um Monqul (SGUM) and Gabal Al Kharaza (GKZ). Mineralization is hosted by Neoproterozoic shie... ver más
Revista: Geosciences    Formato: Electrónico

 
en línea
Hans Niemeyer,Carolina Castillo     Pág. 350 - 357
The southern part of the Mid-Permian Chinquilchoro pluton consits of two approximately concentric lithofacies: an A lithofacies, external melanocratic and a leucocratic internal B lithofacies. The A lithofacies is formed by quartz diorite and quartz monz... ver más
Revista: Andean Geology    Formato: Electrónico

 
en línea
Denisse de la Fuente,Óscar Figueroa,Daniel Demaiffe,Mauricio Mella,Paul Duhart,David Quiroz,Jorge Muñoz,Verónica Oliveros     Pág. 24 - 53
Upper Cretaceous intrusives of limited extent crop out in the Coastal Cordillera near of Valdivia (39º48? S), 100 km west of the main topographic divide of the Andean Cordillera. Given that plutonic rocks of the same age crop out at the same latitudes in... ver más
Revista: Andean Geology    Formato: Electrónico

 
en línea
Hans Niemeyer Rubilar     Pág. 628 - 640
An Upper Cambrian-Ordovician (490-460 Ma) batholith crop out along the Cordón de Lila and Sierra de Almeida, in the Antofagasta region, northern Chile, which belongs to the Famatinian arc. Two plutonic rock types can be distinguished: granodiorites and m... ver más
Revista: Andean Geology    Formato: Electrónico

 
en línea
Ivana A. Urraza,Laura E. Grecco,Sergio H. Delpino,Monica L. Arrese,Carlos W. Rapela     Pág. 98 - 118
In the present contribution, the partial results of a detailed study of the magmatic, metamorphic and tectonic events developed in the Aluminé Igneous-Metamorphic Complex (AIMC) are given. We define the AIMC as the set of pre-andean and andean intrusive ... ver más
Revista: Andean Geology    Formato: Electrónico

 
en línea
Fernando G. Sardi     Pág. 3 - 18
The different rocks that host the tungsten-bearing quartz veins from central-eastern sector of the Famatina System (La Rioja, Argentina) are part of the crystalline basement of this unit. Petrographic and geochemical studies demonstrate that the emplacem... ver más
Revista: Andean Geology    Formato: Electrónico

 
en línea
Juan A. Dahlquist     Pág. 147 - 161
A petrological and geochemical study of Lower Ordovician epidote-bearing granitoids of the Sierra de Chepes (Famatinian Orogen, Sierras Pampeanas, Argentina) indicates low-pressure emplacement of these extensive metaluminous suites. Textural relationship... ver más
Revista: Andean Geology    Formato: Electrónico

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