|Quadrangle map, 1:250,000-scale||HE|
|Quadrangle map, 1:63,360-scale||A-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||TheNay Nadeli placer gold deposit is on a west-flowing tributary of upper Wickersham Creek. The area of placer activity extends from the mouth of the tributary, upstream to the map site, which is in the SW1/4 of sec. 1, T. 21 S., R. 1 W., of the Fairbanks Meridian. This is location B-5 of Balen (1990: 34-90).|
Geologic descriptionThis tributary of Wickersham Creek drains an area underlain by Tertiary or Cretaceous granodiorite, quartz monzonite and granite, and by Cretaceous or Jurassic turbidites (Wilson and others, 1998). The placer gold was probably derived from the erosion of auriferous lodes, such as those at HE172 and HE178. Placer samples collected by the BLM contained 0.0053 ounce of gold per cubic yard (Kurtak and others, 1992).
|Geologic map unit||(-147.67226007355, 63.1195483982818)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||Surface workings date from the early 1900s.|
|Indication of production||Yes; small|
|Production notes||There was very small production of gold in the early 1900s.|
Balen, M.D., 1990, Geochemical sampling results from Bureau of Mines investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Open-File Report 34-90, 218 p., 2 sheets, scale 1:63,360.
Clark, A.L., and Cobb, E.H., 1972, Metallic mineral resources map of the Healy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-394, 1 sheet, scale 1:250,000.
Kurtak, J.M., Southworth, D.D., Balen, M.D., and Clautice, K.H., 1991, Mineral investigations in the Valdez Creek Mining District, south-central Alaska: U.S. Bureau of Mines Open-File Report 1-92, 658 p., 2 sheets, scale 1:250,000.
Moffit, F.H., 1912, Headwater regions of Gulkana and Susitna Rivers, Alaska, with accounts of the Valdez Creek and Chistochina placer districts: U.S. Geological Survey Bulletin 498, 82 p.
Moffit, F.H., 1914, Preliminary report on the Broad Pass region: U.S. Geological Survey Bulletin 592-H, p. 301-305.
Moffit, F.H., and Pogue, J.J., 1915, Broad Pass region, Alaska, with sections on Quaternary deposits, igneous rocks, glaciations: U.S. Geological Survey Bulletin 608, 80 p.
|Reporters||N. Van Wyck (Stevens Exploration Management Corporation)|
|Last report date||4/7/2000|