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Unga/Popof Property

Alaska, USA

Redstar Gold Corporation's Unga Project (the "Project") consists of both the Shumagin and Unga/Popof properties, which together make up approximately 250 square km covering portions of Unga and Popof Islands at the eastern end of the Aleutian Islands (~925 km southwest of Anchorage).

Alaska

Overview


The large Unga-Popof Property contains a number of known mineralized areas with high-grade veins (Aquila), disseminated gold with a high-grade component (Centennial) and porphyry copper-gold (Zachary Bay). The property also contains the strike extensions to the Shumagin and Apollo-Sitka veins (see Shumagin Property)

Centennial Deposit

  • Disseminated replacement-style low-grade gold system containing high-grade (+3 g/t) zones/structures
  • In the late 1980's Battle Mountain Gold Corp completed 59 drill holes and defined a non 43-101 compliant resource of 4.8 million tons with an average grade of 1.5g/t gold to a depth of 50m
  • Historic drillholes were very shallow (94m average length) and steep, thereby not allowing for an opportunity to intersect steeply-dipping higher-grade structures
  • Analysis of the historic results indicates that the disseminated mineralization is open for expansion and that there is potential to delineate high-grade mineralized feeder structures
  • Road access from the town of Sand Point allows for easier year round exploration
  • Selected historic trenches:
    • T5: 1.82 g/t over 72.5m containing 7.53 g/t over 10.8m (containing 18.1 g/t over 3m)
    • T4: 2.12 g/t over 12.5m containing 7.70 g/t over 3m
    • T10: 0.83 g/t over 36.6m
  • Selected historic drillholes:
    • CENT-1: 1.07 g/t over 61.3m containing 3.17 g/t over 5.6m
    • CENT-2: 4.15 g/t over 6.1m
    • CENT-6: 0.92 g/t over 14.6m, 5.13 g/t over 4.6m
    • CENT-7: 0.64 g/t over 22.6m
    • CENT-20: 1.52 g/t over 10.7m containing 4.45 g/t over 3m
    • CENT-30: 1.93 g/t over 10.7m containing 4.42 g/t over 1.5m
    • CENT-34: 0.74 g/t over 39.6m
    • CENT-36: 0.58 g/t over 29.0m containing 3.06 g/t over 2.7m

Zachary Bay Poprhyry Cu-Au


The Zachary Bay porphyry copper-gold target is 7 kilometres northwest of the Shumagin vein. Surface rock-chip sampling in 1974 returned 46 metres of 0.36% copper and 0.550 g/t gold. Four shallow (<120 metre) drillholes completed in 1975 by Quintana Minerals Corp and Duval Corp intersected disseminated Cu-Au mineralization in intrusive rocks. The deepest drillhole (Z1, 117 metres) was mineralized over its entire length, with 107 metres grading 0.11% copper and 0.280 g/t gold. These assays were completed by Resource Associates of Alaska in 1981, who re-assayed the original core. Abundant disseminated hydrothermal biotite, magnetite and chalcopyrite within a quartz-diorite intrusion with pink potassium feldspar phenocrysts are consistent with classic porphyry copper-gold mineralization. The strong correlation between copper and gold is also indicative of a porphyry system. There has been no exploration at Zachary Bay since 1975.

Other Advanced Targets


Aquila Vein Field
  • Along district-scale Shumagin Vein Trend
  • Vein field at least 2km by 0.7km
  • Shallow exploration in early 1980's identified high-grade gold, including:
    • 11.5 g/t over 3.6m in trench
    • 113 g/t over 0.45m at base of 49m core hole (hole terminated due to broken ground)
  • No drilling since 1981
Bloomer Ridge
  • Undrilled vein system near Shumagin Vein with surface samples to 5.3 g/t