|Quadrangle map, 1:250,000-scale||VA|
|Quadrangle map, 1:63,360-scale||B-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is on the north side of the ridge between Summit Lake and an unnamed north tributary to Bridge Creek at an elevation of about 5,000 feet. It is in SW1/4 section 21, T. 6 S., R. 7 E., of the Copper River Meridian. This occurrence is probably located to within one-half mile. It is locality 106B of Winkler and others (1981 [OFR 80-892-B]).|
Geologic descriptionWinkler and others (1981 [OFR 80-892-B]) reported that copper and nickel sulfides are disseminated in mafic rocks of the Haley Creek terrane (Winkler and others, 1981 [OFR 80-892-A]). 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.
|Geologic map unit||(-144.165972931991, 61.3297291200306)|
|Mineral deposit model||Magmatic disseminations and segregations of copper and nickel sulfides in mafic rocks|
|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]).|
|Workings or exploration||Surface reconnaissance only.|
|Indication of production||None|
Additional commentsThis occurrence is in Wrangell-St. Elias National Park.
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.
|Reporters||Travis L. Hudson|
|Last report date||12/14/2001|