|Quadrangle map, 1:250,000-scale||HE|
|Quadrangle map, 1:63,360-scale||D-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The McCuen Gulch placer gold prospect is on a south-flowing tributary to Totatlanika River, approximately 0.5 miles upstream from Needle Rock. The map site is near the mouth of the gulch, in sec. 12, T. 11 S., R. 5 W., of the Fairbanks Meridian. This is locality 58 of Clark and Cobb (1972).|
McCuen Gulch drains an area of mid-Tertiary coal-bearing strata that overlie mid-Paleozoic Totatlanika Schist, composed predominantly of felsic and mafic metavolcanic and metavolcaniclastic rocks (Wilson and others, 1998). The schist is intruded by Tertiary hypabyssal plutons.The placer deposit is in poorly-sorted alluvium consisting of well-rounded clasts, mainly of coarse-grained schist. According to Maddren (1918), the gold is derived from bedrock schist rather than reconcentrated from the Tertiary gravels (Maddren, 1918).
|Geologic map unit||(-148.442332313591, 63.9795507894932)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||Surface development, all prior to 1918.|
|Indication of production||Yes; small|
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.
Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-1062, 113 p.
Maddren, A.G., 1918, Gold placers near the Nenana coal field: U.S. Geological Survey Bulletin 662-G, p. 363-402.
|Reporters||N. Van Wyck (Stevens Exploration Management Corporation)|
|Last report date||4/7/2000|