The Empress Gold Lodes at Granite Flat are hosted within the Banimboola Quartz Monzodiorite approximately 9 km SE of Mitta Mitta, accessed off the Omeo Highway. The small goldfield falls within EL Application EL006277. The 417 Ma zoned Banimboola Quartz Monzodiorite hosts gold and associated copper mineralisation within near vertical shear / vein systems (lodes) with alteration halos up to 30m wide. The lode style mineralisation has been targeted historically (period 1866 to 1920) in small workings and by previous modern explorers with geophysics, rock chip/soil/stream sediment geochemistry and drilling. Previous small soil grids have established 8 strong soil anomalies, the anomalies have had variable drill follow-up completed.
Drill results from these past programs show up to 5 m @ 8.34 g/t Au, 7 m @ 5.26 g/t Au & 4 m @ 6.08 g/t Au and have been completed by various explorers – see EL3025_G47813_GSV_sum.pdf
Sporadic drilling has been carried out both along strike and at shallow depths below historic workings, however there has not been a systematic program of drilling to fully evaluate each anomaly or expand isolated high grade intersections such as the intersection in drill hole GF19 showing 8m @ 6.24g/t Au from 16m down hole. No other drilling is evident to follow up this intersection down dip or along strike. A full 3D drill database is being compiled to assist Dart Mining reconcile past exploration efforts and plan further exploration.
The larger porphyry style system potential (discussed in the Porphyry Projects Page) has not have been fully explored but has been recognised as being a potential mineralising event by Potter, 1997 (Perseverance Mining Pty Ltd).