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| | |   The El Teno project is located on the headwaters of the River Teno, approximately 170 Km south of Santiago, Chile. It is a sizeable copper-molybdenum porphyry system covering an area of 1.2 by 0.6 Km, and has been recognised as highly prospective after the completion of a geochemical and alteration mapping programme in 2004. Copper grades are of up to 0.61% copper and 0.017% molybdenum. The LAT stake covers what is believed to be the "heart" of the porphyry system, while Rio Tinto, Phelps Dodge and Codelco have staked land adjacent to it. The El Teno project lies in an area of extreme interest for larger companies and Latitude can confirm that discussions are underway regarding Joint Venture possibilities. A geophysical survey carried out in Q1, 2005, revealed a 'text book' response, detailed in the news release of 9th March 2005 and seen in the diagram at the base of this page. The porphyry deposit corresponds to mineral alteration, including a Cu-MO-Ag mineralisation anomaly and changes in mineral colour and occurs in a regional NE shear zone. The anomalous zones are identifiable due to the pyrite and chalcopyrite veins within zones of phyllic and localised potassic alteration. The most important anomaly within the target area "Huemulino" outcrops in the banks and bed of the River Teno, characterized by a phyllic alteration zone with intense dioritic porphyry stockwork. Geochemical surveying revealed a central Cu anomaly also associated with a Mo and Au anomaly, the highest grade anomalies coinciding with Biotite/ K-spar veining and matrix alteration in the host volcanics. The geochemical anomalies are related to mineralization of both disseminated and fine veining of chalcopyrite and minor amounts of chalcocite, which is associated with pyrite and quartz and developed in alteration zones or close to breccia and porphyry bodies. At approximately 5 km distance from Huemulino occur peripheral zones of copper mineralization, including one located in the Santa Rita sector, which is characterized by Quartz - Bornite and Copper Oxides with halos of Phyllic alteration manifests as weak stockwork and associated post mineral calcite veining of intense stock. The most important sector of peripheral mineralisation is located at Los Lunes, and is characterized by Bornite mineralisation and copper oxides with phyllic alteration hosted by thrust faulting. As with the prior example the mineralisation is overprinted by post mineralisation, intense calcite stockwork. The age of the porphyries associated with the mineralising event, the Cu - Mo geochemical anomaly and the structural framework or setting, suggest that the El Teno project is a target which conforms with the Copper Porphyry style belonging to the Miocene Mega Porphyry Belt of central Chile. El Teno News Releases
Maps
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