Golden Hand Apex

Mine, Active

Commodities and mineralogy

Main commodities Au
Ore minerals gold
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale SI
Quadrangle map, 1:63,360-scale D-7
Latitude 57.7773
Longitude -136.1713
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Golden Hand Apex Mine is at an elevation of about 500 feet, about 1.3 miles east of upper Pinta Bay. The mine is 0.5 mile west-southwest of the center of sec. 22, T. 47 S., R. 57 E. It is location P-51 of Bittenbender and others (1999), location 22 of Cobb (1972, 1978), and MAS no. 0021140037 (U.S. Bureau of Land Management, 2002). The location is accurate.

Geologic setting

Geologic description

Johnson and Karl (1985) map the rocks in the area of the Golden Hand Apex Mine as Triassic(?) marble and greenstone, Cretaceous(?) phyllite, and a collage of metamorphosed Cretaceous and Cretaceous(?) sedimentary and volcanic rocks. The Triassic(?) and Cretaceous(?) rocks are separated by the Border Ranges Fault, a regional-scale, northwest-striking, steeply-dipping fault whose trace crosses the mine area. The rocks are also cut by other northwest-striking faults, and by northeast-striking faults.
Reed and Coats (1941) report that prospect pits expose limestone intruded by a small mass of quartz diorite, and that at least some of the contact is a fault; other faults also cut the limestone. Quartz replaces some of the limestone near the contact and there is some quartz-cemented limestone breccia. A few specks of gold are visible in quartz veinlets.
Bittenbender and others (1999) report that the Golden Hand Apex Mine was staked in 1921 along a quartz-bearing, northwest-striking fault zone (Stewart, 1923). Workings, mostly in the 1920s, included a 120-foot sloughed trench, 140 feet of crosscut, and 85 feet of drift. Still and Weir (1981) sampled a quartz vein exposed for 23 feet in two trenches; it averaged 0.34 ounce of gold per ton across a 3-foot mining width. A representative sample across a 0.2-foot by 3-foot, high-grade mineralized zone in the footwall of the same vein assayed 187 ounces of gold per ton, and a single selected sample assayed 489 ounces of gold per ton. A small amount of rich ore was produced in 1979 by the claim holder. According to Bittenbender and others, the property is an active inholding within the West Chichagof-Yakobi Wilderness area.
Isotopic studies indicate that the gold-quartz veins in coastal southern and southeastern Alaska are Eocene, about 50 Ma in age (Haeussler and others, 1995; Goldfarb, 1997; Goldfarb and others, 1997).
Geologic map unit (-136.173130263808, 57.7769233370321)
Mineral deposit model Low-sulfide gold-quartz vein (Cox and Singer, 1986; model 36a).
Mineral deposit model number 36a
Age of mineralization Isotopic studies indicate that the gold-quartz veins in coastal southern and southeastern Alaska are Eocene, about 50 Ma in age (Haeussler and others, 1995; Goldfarb, 1997; Goldfarb and others, 1997).

Production and reserves

Workings or exploration Bittenbender and others (1999) report that the Golden Hand Apex Mine was staked in 1921 along a quartz-bearing, northwest-striking fault zone (Stewart, 1922). Workings, mostly in the 1920s, included a 120-foot sloughed trench, 140 feet of crosscut, and 85 feet of drift.
Indication of production Yes; small
Production notes A small amount of rich ore was produced in 1979 by the claim holder.

References

MRDS Number A013260

References

Bittenbender, P., Still, J.C., Maas, K., and McDonald, M., Jr., 1999, Mineral resources of the Chichagof and Baranof Islands area, southeast Alaska: Bureau of Land Management, BLM-Alaska Technical Report 19, 222 p.
Goldfarb, R J., 1997, Metallogenic evolution of Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska: Economic Geology Monograph 9, p. 4-34.
Goldfarb, R.J., Miller, L.D., Leach, D.L., and Snee, L.W, 1997, Gold deposits in metamorphic rocks in Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska: Economic Geology Monograph 9, p. 151-190.
Haeussler, P J., Bradley, D., Goldfarb, R., Snee, L., and Taylor, C., 1995, Link between ridge subduction and gold mineralization in southern Alaska: Geology, v. 23, no. 11, p. 995-998.
U.S. Bureau of Land Management, 2002, Alaska mineral locations database report (Sitka quadrangle), July 2, 2002, 205 p. [http://imcg.wr.usgs.gov/dem.html]
Reporters H.C. Berg (U.S. Geological Survey)
Last report date 10/16/2004