Birdwood Project – NSW, EL 6459 (Anchor 100%)

Between 1968 and 1971 Pickands Mather International (PMI) explored part of EL 6459 (Birdwood) and identified an extensive soil copper geochemical anomaly in the headwaters of Maugham’s Creek at Birdwood.

PMI carried out a program of soil sampling and the copper (chemical symbol Cu) geochemical anomaly identified by that work is defined by the +100ppm Cu contour and extended over the full 5.5km long NW-SE trending PMI grid, and was not closed off at either end. The copper anomaly was essentially constrained on NE-SW cross lines up to 3km long.  This soil anomaly at +100ppm Cu covers an area of around 15km². There is a stronger copper anomaly nested within the +100ppm Cu contour that is defined by the +800ppm Cu contour with peak values up to 2,200ppm Cu in an area referred to as Birdwood North. Spotty anomalous molybdenum (chemical symbol Mo) values ranging up to 120ppm Mo are coincident with the peak copper anomaly.
 
PMI drilled 2 vertical diamond core holes at Birdwood North. Copper values in both holes consistently assayed 100-500ppm over the full length of the holes with hole B-101 intersecting 30.48m averaging 0.11% Cu, including 10m at 0.30% Cu and 2.5g/t Ag. The best molybdenum intersection in hole B-101 was 1.52m averaging 0.10% Mo. In the second hole, B-102, a similar intersection of 30.38m  averaged 0.12% Cu, including 10m at 0.20% Cu and 3.3g/t Ag. In addition, two 3.05m intersections of +100ppm Mo is reported from hole B-102. Pyrrhotite, chalcopyrite and molybdenite were logged in both drill holes.
 
PMI drilled a total of nine diamond core holes (total 2,339m) partially testing the extensive Birdwood soil copper geochemical anomaly. All holes, except the last hole, were vertical. Most holes intersected anomalous copper values, with a best intersection of 16m @ 0.60% Cu and 3.6g/t Ag from hole B-103, including 12.8m averaging 0.79% Cu, 9ppm Mo and 4.9g/t Ag.

The Birdwood copper-molybdenum mineralised system is considered to be under explored and prospective for porphyry copper-molybdenum style mineralisation.  A diamond core drilling program is being planned by Anchor to further test this extensive mineralised system.