|Quadrangle map, 1:250,000-scale||VA|
|Quadrangle map, 1:63,360-scale||C-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect is located on the west side of Liberty Creek valley about 3,700 feet southwest of the Edgerton Highway. It is at an elvation of 1,700 feet in the northeast corner of section 17, T. 3 S., R. 5 E., of the Copper River Meridian. This prospect is approximately located, probably to within one-quarter mile. It is locality 56 of of Cobb and Matson (1972) and locality 47 of Winkler and others (1981 [OFR 80-892-B]).|
Geologic descriptionChloritic schists of the Liberty Creek terrane (Winkler and others, 1981 [OFR 80-892-B]) contain discontinuous, lenses, veins, and veinlets that contain quartz and manganite (Jasper, 1967; Berg and Cobb, 1967). Individual lenses are 1 to 5 feet thick and as much as 40 feet long; veins are as much as 3 inches wide. Veins occur irregularly over a strike length of about a mile in the schist. Selected specimens assayed as much as 58.7 percent manganese (Berg and Cobb, 1967, p. 49).
|Geologic map unit||(-144.564500188903, 61.6128247500798)|
|Mineral deposit model||Quartz-manganite veins|
|Age of mineralization||Not known; the schist in the Liberty Creek terrane was probably metamorphosed during the mid-Cretaceous (Winkler, Silberman, and others, 1981).|
|Workings or exploration||The Liberty Creek prospect was explored with a few shallow trenches in 1959 (Berg and Cobb, 1967).|
|Indication of production||None|
Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska: U.S. Geological Survey Bulletin 1246, 254 p.
Cobb, E.H., and Matson, N.A., Jr., 1972, Metallic mineral resources map of the Valdez quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-438, 1 sheet, scale 1:250,000.
Jasper, M.W., 1967, Geochemical investigations along the Valdez to Chitina Highway, south-central Alaska: Alaska Division of Geological and Geophysical Surveys Geochemical Report 15, 33 p.
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|