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New constraints on petrogenesis of the Bajo de la Alumbrera Cu-Au porphyry system and other porphyries of the Farallon Negro Volcanic District (NW Argentina)_SEG 100

SEG 100 Abstract

Madeleine Ince, Steffen Hagemann, Marco Fiorentini, Tony Kemp, Nora Rubinstein, Eduardo Zappettini

The Farallon Negro Volcanic District is a well-endowed area in the Sierras Pampeanas of Argentina. It includes key Cu-Au porphyry and low-sulfidation epithermal deposits including Bajode la Alumbrera, Agua Rica and Farallon Negro. This study investigates the petrogenesis of the
Bajo de la Alumbrera porphyry Cu-Au deposit as well as mineralised and un-mineralised satellite porphyry stocks including El Durazno, San Lucas, and Las Pampitas.