Profundización de la mineralización en la Mina Paula

Abstract

In the region, there are the deposits of Orcopampa , Arcata, Caylloma , Shila and Paula, outcrop in sedimentary and volcanic lithologic units ranging in age from Jurassic to Recent . Paula Mina is defined as a low sulphidation epithermal deposit flatter type - sericite. In which sulphide mineralization consisting of pyrite, chalcopyrite, galena, sphalerite, acanthite , polybasite , pearceita and electrum . The gangue is mostly quartz. The mineralization consists of quartz oqueroso oxides, limonite and hematite. Structural controls, in which Paula Mine is framed, presented guidelines regional Andean northwest-southeast orientation, which facilitated the sequential processes of volcanism, which shows the different stages of mineralization. Between 2006 and 2012, 148 were drilled 114.62 m of diamond drilling to depths varying between 50 and 550 m . The aim was to test the exploration potential of the mineralized bodies that were intercepted by the majority of the holes made. The most relevant results are the veins: Veta Nazarene, is a recognized structure in a length of 1450 m. Between 5100 to 5030 levels ore is presented in a mixed between oxides and sulfides, with widths from 0.35 m . to 1.00 m in sections spaced Veta Angelica Maria, this structure is recognized 500 m. the structure is a gap hydrothermal subangular clastos composed silicified in gray amorphous silica matrix, disseminated fine pyrite , chlorite, calcite accompanying pre- mineral Grain - Celinda, this vein has been recognized in a length of 550 m in the levels 4930 , 4880, 4830 and 4780 currently in level with a width ranging from 0.30 m to 0.80 m . The filling is quartz gangue mineralogical hyaline white , milky white quartz controlled by post mineral fault , on the stages of economic mineralization ore ore consists of galena , sphalerite , tetrahedrite , chalcopyrite , mainly , this is banded texture to Rosette and breccia , andesite host rock is moderately argilizada aphanitic.