Adakite-like signature in volcanic rocks associated with

CARRASQUERO, SILVIA; GÓMEZ, ANABEL; RUBINSTEIN, NORA

Antofagasta

Congreso; 11 th SGA Biennial Meeting; 2011

Universidad Católica del Norte -Society for Geology Applied to Mineral Deposits

The San Pedro and Oro del Sur ore deposits, located in Mendoza Province, Argentina, are porphyry copper genetically linked to Permian and Miocene volcanic rocks respectively. Both porphyries show a calcalkaline character and geochemical characteristics (particularly high Sr, low Y and Yb, high Sr/Y and La/Yb ratios) typical of adakite-like rocks. This adakitic signature is linked to the crustal thickening produced by the shallowing of the subducting plate.