Property & Access
The property is located in a developing porphyry district at the intersection between the south end of the Maricunga Copper-Gold Belt and the northern extent of the El Indio Gold-Silver Belt, with both districts hosting world-class porphyry and epithermal deposits. Proximity to these deposits does not indicate that similar mineralization will occur at Caballos, and if mineralization does occur, that it will occur in sufficient quantity or grade that would result in an economic extraction scenario, however Golden Arrow uses these deposits as models to guide the exploration process.
The Caballos property is located in La Rioja province, in the Andean Cordillera, with elevations ranging from 4,000m to 4,500m above sea level. A paved highway and good gravel roads allow easy access to the eastern part of the property and work can be conducted for 7 to 8 months of the year. The nearest small community is 100km away.
Geology & Exploration Summary
[For full details of exploration results, please refer to the original News Releases filed on SEDAR.]
In 2012 Golden Arrow discovered a large copper-gold porphyry target at Caballos, through the completion of a surface exploration program including an IP/Resistivity geophysical survey, a detailed ground magnetic survey, geological mapping and additional surface rock and talus fine geochemical sampling. The magnetic core zone of the interpreted porphyry system measures 300 m by 800 m. Sampling on the margin of the magnetic core survey encountered 12 metres averaging 2.4% copper within an 18 metre continuous chip sample, and a nearby hand trench produced a composite chip sample that averaged 0.60% copper and 0.35 g/t Au over 5m (see news release dated December 5, 2011, filed on SEDAR).
The magnetic core of the interpreted porphyry system, as defined by the detailed ground magnetic survey, is largely covered by talus. The IP/Resistivity survey, conducted by Quantec Geoscience, shows a large chargeability high that closely correlates with the interpreted magnetic porphyry core.
Talus fine sampling on the southern half of the porphyry target defined an 1100m by 400m area with elevated with copper geochemistry (+50 ppm Cu envelope with a high of 1667 ppm Cu) and, in an overlapping but slightly reduced area, a gold geochemical anomaly (+20 ppb Au envelope with a high of 149 ppb Au), both centered on the quartz--magnetite stockwork.