Maybe Creek occurrence, Iditarod District, Yukon-Koyukuk Borough, Alaska, USA
This page is currently not sponsored. Click here to sponsor this page.
Location: This placer occurrence is on Maybe Creek about one and a half miles below its head. The coordinates are at a location where gold was panned at an elevation of about 1,450 feet in the NW1/4 NW1/4, section 9, T. 30 N., R. 42 W., of the Seward Meridian. The location is accurate.
Geology: Maybe Creek drains an area underlain by a monzonite pluton of Upper Cretaceous age (Bundtzen, Laird, and Lockwood, 1988; Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). The creek heads into a glacial cirque which indicates that the drainage basin was glaciated in Pleistocene time. The placer occurrence is in shallow, coarse, fluvial gravels along about 0.6 mile of upper Maybe Creek from about 1,450 to 1,800 feet in elevation. Up to 10 grains of fine gold per pan were found at several sites in this portion of the creek. The grade and volume are unknown. The principal heavy minerals identified in panned concentrates include gold, cinnabar, polybasite (?), scheelite, chromite, and magnesiochromite (Bundtzen, Cox, and Veach, 1987).
Workings: Surface sampling was conducted by both the Alaska Division of Geological and Geophysical Surveys and the U.S. Geological Survey in the 1980s (Bundtzen, Cox and Veach, 1987; Bennett and others, 1988).
Age: Probably Late Quaternary.
Commodities (Major) - Au; (Minor) - Ag, Hg, W
Development Status: None
Deposit Model: Placer Au deposit (Cox and Singer, 1986; model 39a).
6 entries listed. 6 valid minerals.
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Bennett, G.J., Gray, J.E., and Taylor, C.D., 1988, Mineralogy and sample locality map of the nonmagnetic, heavy-mineral-concentrate samples, Iditarod quadrangle, Alaska: U.S. Geological Survey Open-File Report 88-32, 37 p., 1 plate, scale 1:250,000. Bundtzen, T.K., Cox, B.C., and Veach, N.C., 1987, Heavy mineral provenance studies in the Iditarod and Innoko districts, western Alaska: Process Mineralogy VII, The Metallurgical Society, p. 221-246. Bundtzen, T.K., Laird, G.M., and Lockwood, M.S., 1988, Geologic map of the Iditarod C-3 quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Professional Report 96, 13 p., 1 sheet, scale 1:63,360. Miller, M.L., and Bundtzen, T.K., 1994, Generalized geologic map of the Iditarod quadrangle, Alaska showing potassium-argon, major oxide, trace element, fossil, paleocurrent, and archeological sample localities: U.S. Geological Survey Miscellaneous Field Studies Map MF-2219-A, 48 pages; 1 sheet, scale 1:250,000. Miller, M.L., Bundtzen, T.K., and Gray, J.E., 2005, Mineral resource assessment of the Iditarod quadrangle, west-central Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2219-B, scale 1:250,000, pamphlet.