FRES15 Oct 2012 09:00
Update on exploration
In the third quarter of 2012 intensive exploration continued at 10 projects and nine prospects with 60 rigs, completing 212,200 metres of core and 60,000 metres of reverse circulation drilling. Resources were increased at each of our seven operating mines, and reserves notably increased at Noche Buena and Saucito. Updated resource and reserve figures will be audited at year end and published in early March of 2013.
Near surface gold bearing structures are in exploration at Noche Buena East and Tajitos in the Herradura District. Higher gold values than were expected were also obtained in drilling at the Centauro Deep project below the main Herradura pit. Exploration continues south of the Fresnillo mine testing the extensions of known veins and new geophysical targets. At the Ciénega District, infill drilling has intersected economic silver-gold-lead-zinc values on the San Ramón, Cebollitas, and Las Casas veins.
Exploration and development ramps and drifts at the San Julián project now total 24 kilometres and parallel gold-silver veins were found in the Todos Santos Norte and Santa Sofía areas. Silver grades in the JM disseminated ore body were confirmed in five development crosscuts. Interesting preliminary results were obtained at the Coneto silver-gold project, a joint venture with Orex in Durango, and the Pilarica project, 100% owned by Fresnillo in Peru. Exploration resumed at the Guanajuato and San Nicolas del Oro silver-gold properties having secured the necessary social and environmental permits.
The exploration adit at the Orisyvo gold project was extended to 1100 metres length through the gold-bearing sulphide zone cutting sections grading over 2 g/t, and metallurgical testing of bulk samples is in progress. Infill drilling at the Minera Juanicipio joint venture with MAG Silver continues following the recommendations of the AMC prefeasibility study and the Juanicipio Technical Committe to convert inferred resources to the indicated category.