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Hodson

Occurrence, Inactive

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Commodities and mineralogy

Main commodities Cu

Geographic location

Quadrangle map, 1:250,000-scale JU
Quadrangle map, 1:63,360-scale D-5
Latitude 58.8406
Longitude -135.4527
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 750 feet, approximately 4.5 miles southeast of Mt. Young, on a north tributary of the Endicott River. It is in the NW1/4 section 17, T. 35 S., R. 60 E. of the Copper River Meridian. The location is accurate within 1 mile.

Geologic setting

Geologic description

The regional geology consists of deformed and metamorphosed Silurian or Devonian carbonate, clastic and volcanic clastic rocks that have been intruded by Upper Jurassic and Lower Cretaceous granitic and dioritic rocks (Brew and others, 1992). Brew and Ford (1985) describe the rocks in the vicinity of this occurrence as predominantly Devonian and Silurian greenstone, greenschist, limestone and graywacke intruded by Cretaceous biotite-hornblende granodiorite.
Jim Burnett, a prospector, reported that he sampled a 12-foot vein or zone of copper in the area that assayed 14% copper (Williams, 1953). Williams failed to locate the occurrence. Wells and others (1986) report a copper vein in this vicinity and assert that claims were active in 1900.
Geologic map unit (-135.454545322788, 58.8402674055223)

Production and reserves

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.
Brew, D.A., Himmelberg, G.R., Loney, R.A., and Ford, A.B., 1992, Distribution and characteristics of metamorphic belts in the southeastern Alaska part of the North American Cordillera--Metamorphic styles in young and ancient orogenic belts: Journal of Metamorphic Geology, v. 10, no. 3, p. 465-482.
Brew, D.A., Johnson, B.R., Grybeck, D., Griscom, A., Barnes, D.F., Kimball, A.L., Still, J.C., and Rataj, J.L., 1978, Mineral resources of the Glacier Bay National Monument Wilderness Study Area, Alaska: U.S. Geological Survey Open-File Report 78-494, 670 p., 7 sheets.
Wells, D.E., Pittman, T.L., Brew, D.A. and Douglass, S.L., 1986, Map and description of the mineral deposits in the Juneau, Taku River, Atlin, and part of the Skagway quadrangles, Alaska: U.S. Geological Survey Open-File Report 85-717, 332 p., 1 sheet, scale 1:250,000.
Williams, J.A., 1953, Reconnaissance trip, Endicott River area, Lynn Canal: Alaska Territorial Department of Mines Mineral Investigation 112-2, 3 p.
Reporters J.C. Barnett and L.D. Miller (Juneau, Alaska )
Last report date 12/15/2001