Unnamed (near Canyon Creek) (ARDF #VA079) Cu, Zn

Unnamed (near Canyon Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities	Cu; Zn
Ore minerals	chalcopyrite; limonite; pyrite; sphalerite

Geographic location

Quadrangle map, 1:250,000-scale	VA
Quadrangle map, 1:63,360-scale	B-1
Latitude	61.2762
Longitude	-144.388
Nearby scientific data	Find additional scientific data near this location
Location and accuracy	This occurrence is about one-half mile southwest of the pass at the head of Canyon Creek near the foot of two active glaciers. It is at an elevation of about 4,300 feet in the NE1/4 section 7, T. 7 S., R. 6 E., of the Copper River Meridian. This occurrence is probably located to within one-quarter mile. It is locality 81of Winkler and others (1981 [OFR 80-892-B]).

Geologic setting

Geologic description Diffuse, widespread iron-stained zones in mylonitic metavolcanic rocks of the Haley Creek terrane contain disseminated pyrite and possibly chalcopyrite and sphalerite (Winkler and others, 1981 [OFR 80-892-B]). The polydeformed Haley Creek terrane consists of metasedimentary rocks, including marble and metaplutonic rocks that range from peridotite to trondhjemite (Winkler and others, 1981 [OFR 80-892-A]). The protolith ages are not known, but much deformation and recrystallization of the Haley Creek terrane probably occurred in the mid-Cretaceous or later (Winkler and others, 1981 [OFR 80-892-A]).
Geologic map unit	(-144.390070080697, 61.2757239202201)
Mineral deposit model	Submarine volcanogenic (Winkler and others, 1981 [OFR 80-892-B])
Age of mineralization	Not known; the protolith ages of metasedimentary and metaplutonic rocks in the Haley Creek terrane are not known, but much deformation and recrystallization probably occurred in the mid-Cretaceous or later (Winkler and others, 1981 [OFR 80-892-A]).
Alteration of deposit	Oxidation; diffuse iron-stained zones are present.

Production and reserves

Workings or exploration	Surface reconnaissance only.
Indication of production	None
Additional comments This occurrence is in Wrangell-St. Elias National Park.

References

MRDS Number	A011595
References Winkler, G.R., Miller, R.J., MacKevett, E.M., Jr., and Holloway, C.D., 1981, Map and summary table describing mineral deposits in the Valdez quadrangle, southern Alaska: U.S. Geological Survey Open-File Report 80-892-B, 2 sheets, scale l:250,000. Winkler, G.R., Silberman, M.L., Grantz, Arthur, Miller, R.J., and MacKevett, E.M., Jr., 1981, Geologic map and summary geochronology of the Valdez quadrangle, southern Alaska: U.S. Geological Survey Open-File Report 80-892-A, 2 sheets, scale 1:250,000.
Reporters	Travis L. Hudson
Last report date	12/14/2001