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2020

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3 Articles

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Contributions to the metallogenesis of the Upper Proterozoic - Cambrian basement at the Eastern Sierras Pampeanas: Mineralogy, thermometry and sulfur isotopes in the Malagueño skarn (Cu-Fe±Zn), Sierra Chica, Córdoba, Argentina

María José J. Espeche,Raúl Lira,Nicolás A. Viñas

On-going mining operations in a marble quarry (Cantera Centro) from Malagueño, Sierra Chica de Córdoba, Argentina, have unearthed veins, veinlets and lenses of sulfides (pyrrhotite>pyrite?chalcopyrite>>sphalerite). These veins and lenses are up t... see more

Andean geology , 2020

Free Access

Tectonic setting of Cretaceous porphyry copper deposits of northern Chile (28°-30° S) and its relations with magmatic evolution and metallogeny

Christian Creixell,Javier Fuentes,Hessel Bierma,Esteban Salazar

Cretaceous porphyry copper deposits of northern Chile (28º-29º30’ S) are genetically related with dacitic to dioritic porphyries and they represent a still poorly-explored target for Cu resources. The porphyries correspond to stocks distributed into two s... see more

Cretaceous | Central Andes | Porphyry copper | Metallogenesis | Orogenesis

Andean geology , 2020

Free Access

Bitumen-rich lavas in the Lower Cretaceous of Copiapó, Atacama Region, Chile: petrochemistry and metallogenesis significance.

Maria Eugenia Cisternas,Jose Frutos,Eduardo Galindo,Baruch Spiro

The bitumen-rich andesitic horizon emplaced in the upper part (Pabellón Formation) of the Lower Cretaceous marine sequences in the Atacama Region (Chañarcillo Group) has been formerly considered a sill. The main evidence for interpreting this horizon as s... see more

Andean geology , 1999

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