MINERÍA la mejor puerta de acceso al sector minero EDICIÓN 588 / SEPTIEMBRE 2026 54 Exploraciones PÓRFIDOS DE CU-MO EN EL SUR DE PERÚ: ORIGEN, FORMACIÓN Y EXPLORACIÓN DURANTE LA TRANSICIÓN CRETÁCEO - PALEÓGENO Abstrac World-class copper-molybdenum (Cu-Mo) porphyry systems were emplaced in southern Peru during the Cretaceous-Paleogene transition. This was associated with crustal thickening resulting from a large volume of previously generated magma, in an event known as a magmatic flare-up. Subsequent crustal thinning led to the collapse of the continental crust and triggered intense felsic magmatism, which deposited a succession of rhyolitic pyroclastic materials more than 1,000 m thick, known as the Toquepala Group. Following this magmatic event, significant world-class Cu-Mo porphyry systems developed during
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