Honolulu

Prospect, Probably inactive

Commodities and mineralogy

Main commodities Ag; Au; Cu
Other commodities Pb; Sn; Zn
Ore minerals chalcopyrite; galena; sphalerite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale HE
Quadrangle map, 1:63,360-scale A-5
Latitude 63.03
Longitude -149.48
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Honolulu prospect is at an elevation of about 2,950 feet in the headwaters of Honolulu Creek. The location is accurate to within 0.5 mile. The map site is in the SW1/4 of sec. 4, T. 22 S., R. 10 W., of the Fairbanks Meridian. This is location 36 of Cox and others, 1989; location D-22 of Balen (1990: OFR 34-90).

Geologic setting

Geologic description

The area of the Honolulu prospect is underlain by Lower Cretaceous to Upper Jurassic graywacke and argillite cut by Tertiary granites. The deposit is in highly altered granitic rock and consists of sulfide-rich quartz veinlets (Balen and others, 1991). The sulfide minerals are chalcopyrite, galena, and sphalerite. High tin assays suggest that cassiterite also is present. One channel sample collected across a 60-foot exposure of altered granite contained 1.09 ounce of silver per ton, 0.03 ounce of gold per ton, 1.5% copper, and 250 ppm tin. The highest grade samples contained 141 ounces of silver per ton, 0.05 ounce of gold per ton, 2.3% copper, 6.3% lead, 6% zinc, and 795 ppm tin (Balen, 1990: OFR 34-90; Balen and others, 1991).
In 2016, Honolulu Prospect Corp. conducted a multi-phase exploration program on their Honolulu project. Select hand samples include: sheeted arsenopyrite veins from Tiki Chute with 0.17 ounce of gold per ton and 1.35 ounces of silver per ton; disseminated arsenopyrite in drusy quartz from Bertram Gulch with 0.03 ounce of gold per ton and 7.3 ounces of silver per ton; and oxidized sulfide veins from Tempest with 8.26 percent lead, 6.47 percent zinc, and 223.8 ounces of silver per ton. Honolulu Prospect Corp. is planning a significant drilling campaign in 2017, along with geochemical and geophysical surveys and geologic mapping (Athey and Werdon, 2017).
Geologic map unit (-149.482275362261, 63.0295223164077)
Mineral deposit model Polymetallic veins (Cox and Singer, 1986; model 22c)
Mineral deposit model number 22c
Age of mineralization The sulfide minerals are in altered Tertiary granite.
Alteration of deposit Extensive silicification and phyllic alteration.

Production and reserves

Workings or exploration
Surface workings, and two shallow Winkie holes drilled in the mid-1970s (unpublished report for the New Alaska Syndicate, 1976). One channel sample collected across a 60-foot exposure of altered granite contained 1.09 ounce of silver per ton, 0.03 ounce of gold per ton, 1.5% copper, and 250 ppm tin. The highest grade samples contained 141 ounces of silver per ton, 0.05 ounce of gold per ton, 2.3% copper, 6.3% lead, 6% zinc, and 795 ppm tin (Balen, 1990: OFR 34-90; Balen and others, 1991).
In 2016, Honolulu Prospect Corp. conducted a multi-phase exploration program on their Honolulu project, which included 16 drill holes, collecting 1,505 sediment and 124 rock samples, defining a 1,000-foot strike length and up to 200-foot-wide mineralized structural zone with multiple mineralized fault splays containing continuous high-grade mineralization, and identification of four new areas with anomalous silver, copper, and gold. The 16 holes were drilled from 5 pads for a total of 8,645 feet. Select hand samples include: sheeted arsenopyrite veins from Tiki Chute with 0.17 ounce of gold per ton and 1.35 ounces of silver per ton; disseminated arsenopyrite in drusy quartz from Bertram Gulch with 0.03 ounce of gold per ton and 7.3 ounces of silver per ton; and oxidized sulfide veins from Tempest with 8.26 percent lead, 6.47 percent zinc, and 223.8 ounces of silver per ton. Honolulu Prospect Corp. is planning a significant drilling campaign in 2017, along with geochemical and geophysical surveys and geologic mapping (Athey and Werdon, 2017).
Indication of production None

References