Unnamed (on Towers Creek)

Prospect, Undetermined

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite; pyrite

Geographic location

Quadrangle map, 1:250,000-scale PE
Quadrangle map, 1:63,360-scale D-5
Latitude 56.8578
Longitude -133.4017
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is on Towers Creek at an elevation of about 170 feet, about about 1.5 miles from the head of Towers Arm. It is near the center of section 11, T. 58 S., R. 76 E.

Geologic setting

Geologic description

Still and others (2002) sampled this prospect which consists of an outcrop/boulder in Towers Creek of iron-stained, calcareous, silicified schist with disseminated and narrow bands of pyrite with sparse chalcopyrite. The country rock is Devonian schist near the contact with Triassic argillite of the Hyd Group (Karl and others, 1999). Six samples across the schist and the sulfide bands contained 175 to 713 ppm copper. This prospect was one of the discoveries by Amoco Minerals in 1978 and 1979. This work included airborne and ground geophysics, geologic mapping, soil and stream geochemical samples, and core drilling on a large block of claims covering the Tower Creek prospect.
Geologic map unit (-133.403431840782, 56.8574604187818)
Mineral deposit model Volcanogenic massive sulfide deposit?

Production and reserves

Workings or exploration This prospect was one of the discoveries by Amoco Minerals in 1978 and 1979. This work included airborne and ground geophysics, geologic mapping, soil and stream geochemical samples, and core drilling on a large block of claims covering the Tower Creek prospect.
Indication of production None

References

References

Still, J.C., Bittenbender, P.E., Bean, K.W., and Gensler, E.G., 2002, Mineral assessment of the Stikine area, central Southeast Alaska: U.S. Bureau of Land Management Technical Report 51, 560 p.
Reporters Donald Grybeck (Port Ludlow, WA)
Last report date 4/8/2007