Argentina/Chile
Andrea
The Andrea Project is located in the Andes of Region IV of Chile and lies within the late Eocene-- early Oligocene Copper Belt. This is one of the most important copper belts in the world and includes such giant porphyry copper deposits as Chuquicamata and Escondida. The project area lies approximately 75 kilometres east of the city of Illapel in central Chile.
The Andrea Project consists of 100% owned exploration licenses covering 1,300 hectares. Mineralization is associated with Eocene (?) porphyritic intrusives of intermediate composition that cut Late Cretaceous volcanic and sedimentary rocks which form the regional basement. The Eocene intrusives crop-out in a 2.5 by 4.5 kilometre area and are generally located along north-trending regional faults that also control the location of hydrothermal alteration and mineralization. The alteration zone associated with the intrusives extends over an area of 3 by 2 kilometres and grades outward from a 600m long central core of potassic alteration along Banzai Ridge, with disseminated secondary biotite and stockwork pyrite, magnetite and chalcopyrite, to a large area of sericitic alteration with abundant iron oxides (goethite > jarosite > hematite).
The results of geochemical sampling and alteration mapping completed during 2010 indicate that a significant copper-molybdenum porphyry system has been identified at Andrea. The best results to date correspond to the zone of potassic alteration which has strongly anomalous copper - up to 0.6% in rock chips. The planned program is similar to that for Colmillos. Negotiations with the owners of surface rights along the right of way for the planned access road are ongoing. A geophysical survey supported by helicopter and mules is planned for the first quarter of 2011. Up to 2,000 metres of drilling is planned if the negotiations for the access road can be completed in time.
Maps and Photos
The Andrea Project is located in the Andes of Region IV of Chile and lies within the late Eocene-- early Oligocene Copper Belt. This is one of the most important copper belts in the world and includes such giant porphyry copper deposits as Chuquicamata and Escondida. The project area lies approximately 75 kilometres east of the city of Illapel in central Chile.
The Andrea Project consists of 100% owned exploration licenses covering 1,300 hectares. Mineralization is associated with Eocene (?) porphyritic intrusives of intermediate composition that cut Late Cretaceous volcanic and sedimentary rocks which form the regional basement. The Eocene intrusives crop-out in a 2.5 by 4.5 kilometre area and are generally located along north-trending regional faults that also control the location of hydrothermal alteration and mineralization. The alteration zone associated with the intrusives extends over an area of 3 by 2 kilometres and grades outward from a 600m long central core of potassic alteration along Banzai Ridge, with disseminated secondary biotite and stockwork pyrite, magnetite and chalcopyrite, to a large area of sericitic alteration with abundant iron oxides (goethite > jarosite > hematite).
The results of geochemical sampling and alteration mapping completed during 2010 indicate that a significant copper-molybdenum porphyry system has been identified at Andrea. The best results to date correspond to the zone of potassic alteration which has strongly anomalous copper - up to 0.6% in rock chips. The planned program is similar to that for Colmillos. Negotiations with the owners of surface rights along the right of way for the planned access road are ongoing. A geophysical survey supported by helicopter and mules is planned for the first quarter of 2011. Up to 2,000 metres of drilling is planned if the negotiations for the access road can be completed in time.
Maps and Photos
