|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||This occurrence is at an elevation of about 3,600 feet on the west bank of an unnamed, southeast-flowing tributary of Wickersham Creek. It is about 6 miles west of the Denali Highway bridge over the Susitna River. The site is in the NW1/4 of sec. 11, T. 21 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet. This is locality 13 of Smith and others (1975: OFR 69).|
Geologic descriptionThis occurrence consists of chalcopyrite disseminations in an altered intrusive rock that cuts metamorphosed Lower Cretaceous and Upper Jurassic flysch (Wilson and others, 1998). The intrusive rock probably is an apophysis of the quartz monzonite stock at the Gold Hill prospect (HE172). The stock is correlated with the Tertiary (63 and 55 Ma) Butte Lake pluton (Smith and others, 1988).
|Geologic map unit||(-147.704259622332, 63.1095480597731)|
|Mineral deposit model||Porphyry Cu-Au (Cox and Singer, 1986; model 20c)|
|Mineral deposit model number||20c|
|Age of mineralization||Tertiary, assuming that the deposit is indigenous to the intrusive host rock.|
|Workings or exploration||Surface exploration only.|
|Indication of production||None|
Smith, T.E., Kline, G.L., Kline, J.T., and Coursey, N.D., 1975, Analyses of rock and stream-sediment samples, Healy A-2 Quadrangle, south-central Alaska: Alaska Division of Geological & Geophysical Surveys Alaska Open-File Report 69, 2 sheets, scale 1:63,360.
|Reporters||N. Van Wyck (Stevens Exploration Management Corporation)|
|Last report date||4/7/2000|