Zelda (ARDF #JU223) Au

Zelda

Prospect, Inactive

Commodities and mineralogy

Main commodities	Au
Ore minerals	pyrite
Gangue minerals	quartz

Geographic location

Quadrangle map, 1:250,000-scale	JU
Quadrangle map, 1:63,360-scale	A-1
Latitude	58.2418
Longitude	-134.3264
Nearby scientific data	Find additional scientific data near this location
Location and accuracy	The Zelda prospect is on the northeast shore of Douglas Island, 1 mile northwest of the mouth of Nevada Creek. It is near the center of section 8, T. 42 S., R. 68 E. of the Copper River Meridian. The location is accurate.

Geologic setting

Geologic description The Zelda prospect was discovered in 1912 and was developed by 2 small adits. The deposit consists of black phyllite that contains several discontinuous, concordant quartz veins (Redman and others, 1989). The quartz veins contain pyrite. U.S. Bureau of Mines samples contained up to 1.7 ppm gold (Redman and others, 1989). The rocks in the general area are Upper Jurassic or Cretaceous marine argillite and graywacke, interbedded with andesite or basalt (Brew and Ford, 1985). The bedded rocks are regionally metamorphosed to prehnite-pumpellyite or greenschist grade, and cut by diorite or gabbro dikes and sills.
Geologic map unit	(-134.328165253574, 58.2414710443862)

Geologic description

The Zelda prospect was discovered in 1912 and was developed by 2 small adits. The deposit consists of black phyllite that contains several discontinuous, concordant quartz veins (Redman and others, 1989). The quartz veins contain pyrite. U.S. Bureau of Mines samples contained up to 1.7 ppm gold (Redman and others, 1989).

The rocks in the general area are Upper Jurassic or Cretaceous marine argillite and graywacke, interbedded with andesite or basalt (Brew and Ford, 1985). The bedded rocks are regionally metamorphosed to prehnite-pumpellyite or greenschist grade, and cut by diorite or gabbro dikes and sills.

Geologic map unit

(-134.328165253574, 58.2414710443862)

Production and reserves

Workings or exploration	The Zelda prospect was discovered in 1912 and was developed by 2 small adits.
Indication of production	None

References

References Brew, D.A., and Ford, A.B., 1985, Preliminary reconnaissance geologic map of the Juneau, Taku River, Atlin, and part of the Skagway 1:250,000 quadrangles, southeastern Alaska: U.S. Geological Survey Open-File Report 85-395, 23 p., 2 sheets, scale 1:250,000. Redman, E.C., Maas, K.M., Kurtak, J.M., and Miller, L.D., 1991, Section D: Juneau Gold Belt subarea, in U.S. Bureau of Mines, Mineral investigations in the Juneau Mining District, Alaska, 1984-1988: Volume 2 - Detailed mine, prospect, and mineral occurrence descriptions: U.S. Bureau of Mines Special Publication VOL. 2D, 424 p., 19 sheets.
Reporters	J.C. Barnett and L.D. Miller (Juneau, Alaska )
Last report date	12/15/2001