Rosita Camp
Calibre's Rosita camp has the potential to host gold-copper skarn mineralization and associated porphyry mineralization. The camp covers 20,500 hectares of concessions including the past producing Santa Rita mine that produced copper and gold from skarn mineralization. The small town of Rosita is located within the concessions. Historic Santa Rita copper mine The Santa Rita copper mine was in production in the Rosita camp in the mid-1960s to early 1980s and had a low grade resource remaining at the time it was shut down.
305 million pounds copper 177,737 ounces gold 2,630,000 ounces silver 5,374,688 tonnes Santa Rita total historical resource*: 328 million pounds copper 316,414 ounces gold 15,354,100 tonnes During the 2009/2010 exploration season, Calibre advanced the Bambana copper-gold project through to the drill testing stage. Geology of Rosita Camp The northern part of the Rosita camp is characterized by Matagalpa Group andesitic volcanic and minor pyroclastic rocks and associated intermediate to felsic intrusions, many of which overlap. The copper-gold skarn deposits at the historic Rosita mine are spatially related to these intrusions. There are also significant exposures of Todos Santos Formation limestone and calcareous sediments in the southeastern part of the camp. Low sulphidation style epithermal veins are reported in proximity to some skarn prospects. * Historical production and resource from (Arengi 2002). Total historic resource is not NI43-101 compliant. These resources are estimates and have not been verified by the company; they are presented only for historical completeness.  | |