Enterprise’s Murchison Project is centred 30km north of Cue and 35km north-east of the Big Bell Gold Mine. The project covers approximately 820 km2 of the northern and north-eastern extensions of the same greenstone belts and shear zones that host the Big Bell and Cuddingwarra gold deposits and extensions of the Chieftain (or “Mt Magnet”) and Emily Well shear zones, which also host gold mineralization.
The Cue district contains several major gold mines, including Westgold’s Big Bell (2.8 Moz historical production, and 2.5 Moz resource), Day Dawn (Great Fingall and Golden Crown mines, 1.7 Moz historical production and 0.89 Moz resource) and Cuddingwarra camp gold mines (Cuddingwarra produced 0.8 Moz with current resources of 0.55 Moz). [Source: Westgold Resources Ltd, Diggers & Dealers presentation August 2017]
In addition to the gold potential, the tenement package contains two stratigraphic horizons with VMS style mineralization identified by previous explorers. The tenements contain 21km of strike of the Wattagee horizon, containing the AM14, Wattagee Hill and Metals Ex gossans or prospects, and 16km of strike of the Emily Well horizon, with VMS mineralization and gossans located at or near Emily Well. Recent geochemical work by the GSWA indicates felsic volcanics in both the Wattagee horizon and the Emily Well horizon have geochemical characters consistent with VMS fertile packages across the Yilgarn and Canadian Abitibi Provinces.
Upon grant of the tenements Enterprise plans to:
- fly detailed airborne EM on 50-100m line spacings, looking for both:
- bedrock conductors, indicative of VMS related massive sulphide; and
- zones of deep weathering indicative of oxidation of disseminated sulphides around possible VMS massive sulphide systems; and
- undertake drill spoil sampling from historical drilling, looking to identify large scale gold and VMS style alteration systems without having to undertake new grid based regolith drilling.
For gold exploration, a comprehensive drill hole database for the region has been compiled, which is being interrogated for:
- Effective holes i.e. those drilled deeper than the base of complete oxidation into the partly oxidized (transition) zone;
- Gold dispersion blankets within the weathering profile; and
- Significant bedrock intersections.
Geochemically focused exploration will be combined with structural targets drawn from compilation and interpretation of the most recent detailed aeromagnetic datasets, and multi-element geochemistry, and potential basement weathering zones identified in the airborne TEM flown for base metal exploration.