The Bienaventurada vein is located within the mining District of Huachocolpa, department of Huancavelica at 4550 m above sea level, in volcanic rocks of Neogene corresponding to the formation «Domos de Lava»; they are fundamentally andesites. They strike is N52º - 65ºE and dip 55º - 75º, the potent of this vein is variable 1 - 4m. The mineral filling has a hydrothermal origin, of the epithermal reach located by processes of stuffed of fissure with breach. Studies of fluid inclusions suggest that two types of fluids were implicated. The first, with salinities between 5-8% NaCl and homogenization temperatures between 220-230ªC; whereas diluted other (1,5-4% NaCl) is in the external parts with homogenization temperatures between 298-300ªC. Both show boiling evidences. The mineralogical association consists on pyrite, which was the first mineral deposited in the structures; the quart...

The Bienaventurada vein is located within the mining District of Huachocolpa, department of Huancavelica at 4550 m above sea level, in volcanic rocks of Neogene corresponding to the formation «Domos de Lava»; they are fundamentally andesites. They strike is N52º - 65ºE and dip 55º - 75º, the potent of this vein is variable 1 - 4m. The mineral filling has a hydrothermal origin, of the epithermal reach located by processes of stuffed of fissure with breach. Studies of fluid inclusions suggest that two types of fluids were implicated. The first, with salinities between 5-8% NaCl and homogenization temperatures between 220-230ªC; whereas diluted other (1,5-4% NaCl) is in the external parts with homogenization temperatures between 298-300ªC. Both show boiling evidences. The mineralogical association consists on pyrite, which was the first mineral deposited in the structures; the quart...

The Carboniferous (Mississippian) Pataz Batholith, dated between 329 - 347 Ma (Haeberlin et al., 2004) is about 160 km long (N30°W), 2.5 to 5 km wide currently recognized.  The intrusive is constituted by more than one plutonic facies: one facies of granite - granodiorite and another facies of tonalite-diorite, being the first one the most favorable for the emplacement and development of orogenic veins with gold content. The study area is located between parallels 8°10'S to 8°17'S, nearby the towns of Llacuabamba and Tayabamba in the province of Pataz, Peru, studies carried out on the intrusives outcropping in the vicinity of the town of Tayabamba would have shown a petrological and geochemical affinity to the Pataz Batholith, the affinity of all samples towards volcanic arc granites, as a SiO2 vs Sm/Yb ratio affinity presumes a possible coetaneity of the crystalline pulses (Mant...