|Quadrangle map, 1:250,000-scale||RB|
|Quadrangle map, 1:63,360-scale||B-5|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Lucky Creek is a tributary of Crooked Creek that is not shown on the 1952 USGS Ruby (B-5) Quadrangle map (minor revisions in 1973). The coordinates above correspond to location 8 of Cobb (1972[MF405]) and were used to find the site location in section 14, T. 12 S., R. 17 E. of the Kateel River meridian. The location is accurate within 1 mile.|
The bedrock geology in the Lucky Creek area consists of two different rock types. If the location is accurate, the creek drains amphibolite grade schist and gneiss of the Ruby terrane (Puchtner and others, 1998). The contact with a phyllite and quartzite unit of the Ruby terrane is mapped 1 to 2 miles to the south, and the contact with a Tertiary-Cretaceous granite stock is projected to be approximately 1/2 mile north of the Lucky Creek prospect site, buried under Quaternary fill (Puchter and others, 1998).Some prospecting and mining took place along this creek around 1933 (Mertie, 1936). Although gold was reported, the amount of gold is unknown, and the presence of cassiterite is uncertain (Mertie, 1936; Chapman and others, 1963). The potential for placer mining in this valley is probably slight (Eberlein and others, 1977).
|Geologic map unit||(-155.396177778556, 64.445137665853)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary?|
|Workings or exploration||Some placer gold mining took place along Lucky Creek around 1933 (Mertie, 1936; Chapman and others, 1963).|
|Indication of production||Yes; small|
Chapman, R.M., Coats, R.R., and Payne, T.G., 1963, Placer tin deposits in central Alaska: U.S. Geological Survey Open-File Report 239, 53 p.
Cobb, E.H., 1972, Metallic mineral resources map of the Ruby quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-405, 1 sheet, scale 1:250,000.
Cobb, E.H., and Chapman, R.M., 1981, Mineral occurrences (other than mineral fuels and construction materials) in the Kantishna River and Ruby quadrangles, Alaska: U.S. Geological Survey Open-File Report 81-170, 94 p.
Eberlein, G.D., Chapman, R.M., Foster, H.L., and Gassaway, J.S., 1977, Map and table describing known metalliferous and selected nonmetalliferous mineral deposits in central Alaska: U.S. Geological Survey Open-File Report 77-168-D, 132 p., 1 sheet, scale 1:1,000,000.
|Reporters||C.E. Cameron (Alaska Division of Geological and Geophysical Surveys)|
|Last report date||3/22/2000|