Cerro Negro – Potrerillos

At Cerro Negro, a large magnetic anomaly coincides with a Miocene dacite intrusion, which is fully surrounded by gravels. Two IP lines acquired in 2023 revealed chargeability anomalies on the SW and NE margins of such magnetic feature. MMI soil sampling showed highly anomalous Cu, Au, Ag, Mo and pathfinders anomalies partly matching the IP anomalies. The coincidence of geophysical and geochemical anomalies suggests the presence of a concealed porphyry system below the gravels. Small Cu occurrences have been found in the nearest sedimentary country rocks with values up to 0.15 Cu and 64 ppm Mo. These anomalies are interpreted as distal geochemical leaking from a concealed mineralized system.  The Potrerillos (19,000 ha) property is located 25km NW of Cerro Negro and partially covers a much larger magnetic anomaly.