Three Copper/Gold Projects located in the Isaac region of Central Queensland.
The Gotthardt and Bundarra granodiorites intrude the Bowen Basin sediments, and were the focus of copper mining and smelting early last century. For example, a crushing from one mine produced copper at 29.7%, gold at 4g/t and silver at 330g/t.
Application of a replacement style mineralisation model to these areas represents a significant untested opportunity to discover new orebodies.
Historical exploration includes 39m @ 0.8% Cu, 3m @ 2.0% Cu & 30g/t Au, 55m @ 0.4% Cu & 0.1 g/t Au, 30m @ 0.5% Cu & 0.4 g/t Au, 50m @ 2.2% Cu and 0.3g/t Au in costeans.
Drilling includes 3m @ 1.8% Cu, 0.3g/t Au and 27g/t Ag in 12m @ 0.7% Cu, 38m @ 0.5% Cu, 52m @ 0.2% Cu inc. 1m @ 2.4% Cu & 2m @ 1.0% Cu and an Actinolite skarn at Smelter Workings up to 10.1 g/t Au.
| High Grade Copper | High Grade Gold |
|---|---|
| 19.8% Cu Sample 244604 | 27g/t Au Sample 244126 |
| 10.67% Cu Sample 244010 | 17g/t Au Sample 244128 |
| 5.0% Cu Sample 244623 | 23g/t Au Sample 244127 |
| 16.2% Cu Sample 244626 | 11g/t Au Sample 244112 |
| 7.6% Cu Sample 244627 | 7g/t Au Sample 244599 |
| 8.6% Cu Sample 244005 | |
| 7.3% Cu Sample 244007 | |
| 7.7% Cu Sample 244596 | |
| 5.5% Cu Sample 244598 | |
| 12.0% Sample 244676 | |
| 11.0% Sample 244677 | Source: Homestake Annual Technical Report CR30506 |
Recent soil sampling defines a +1km long copper zinc zone (up to 0.2% Cu) in area of Back Creek formation sediments. In addition to a very coherent 600x170m >800ppm copper soil anomaly.
Magnetic data modelling indicates a ~12km x 3km buried intrusive complex at Valkyrie, with the potential for overlying impermeable sediments to act as a fluid trap.
Work on Valkyrie suggests mineral system fundamentals of fluid, pathway, trap and preservation are present > deposits of scale in commodities of desire are being targeted.
