CUSI
[Exploration]
Since the acquisition of the Cusi silver district, in mid-2006, the Company has conducted detailed geologic mapping, detailed core drilling (both surface and underground), metallurgical testing and pilot mining in the old mine workings.
Due to the size of the property and the high number of potential targets, the Company decided to concentrate its efforts on four interconnecting former mines out of twelve situated in the NW area of the property. Most of the drilling has been aimed at discovering and defining mineralized structural trends and veins within two major sectors of the Cusi Project ― Santa Edwiges and Promontorio, both historical producers.
Santa Eduwiges Mine
The Santa Eduwiges–San Antonio–San Marina sector consists of multiple fracture-filled quartz-carbonate veins containing high sulphide contents that are typical of the middle portion (Pb, Zn, Cu) of a zoned, low-sulphidation epithermal vein. This middle portion of the vein transits upwards to the upper precious metal (Au, Ag) portion of the vein.
Promontorio Mine
Mineralization at Promontorio is associated with fracture-filled, low-sulphidation veins with high precious-metal grades, typical of a high-level epithermal system.
In the Promontorio Mine sector, a series of NW-SE veins are mineralised. These veins are labelled from A to K. The A vein (Veta A) dips NE while the other veins (from B to K) dip SW.
Cusi 2009 Exploration Program
The objectives of 2009 are twofold: 1) define and expand the resources along the Santa Marina and San Antonio veins, along vein intersections Santa Marina and Rosario, Santa Marina and San Bartolo and along the Tascates and Mexicana veins and 2) evaluate and test the Promontorio vein intersections and the Santa Rosa Chimney with the objective of defining and expanding resources in this sector.
Recent Press Releases:
September 28, 2009 : Dia Bras Discovers New High-Grade Silver Veins at Cusi and Announces Plans to Expand Silver Production: 3,315 g/t Silver over 2.45 Meters at Santa Eduwiges Mine more
July 23, 2009: Dia Bras: New targets and high grade, silver-mineralized shoots identified at the Cusi project, Chihuahua, Mexico more