Geochronologic and petrologic evolution of the magmatic suite associated with the Eocene Coroccohuayco deposit, and its role in the genesis of the associated Cu(-Au) porphyry-skarn mineralization, Tintaya District, Peru
- Chelle-Michou, Cyril
DOIAbstract
This thesis provide a detailed geochronologic and petrologic study of the magmatic suite associated with the Eocene Coroccohuayco porphyry-related Cu deposit, Peru, that presents an evolution from normal to high Sr/Y through time, and investigate the significance of magmatic processes in the genesis of the mineralization. The first two chapters present high-resolution geochronologic data of magmatic and hydrothermal events. They highlight that the mineralization event was very rapid (<100 ka) and occurred after ~5 Ma of sustained intracrutal magmatism and proto-pluton cannibalism. The third and fourth chapters present new petrographic, geochemical and isotopic data of whole rocks and minerals. They suggest that the chemistry of magmatic roc...
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