|Quadrangle map, 1:250,000-scale||GU|
|Quadrangle map, 1:63,360-scale||D-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is on a minor southwest tributary to the West Fork of Ahtell Creek about 2.3 miles northwest of the junction of Ahtell Creek and its West Fork. It is in the NW1/4, section 9, T. 12 N., R. 7 E., Copper River Meridian. The occurrence is number 3d of WGM Inc. (1980).|
Geologic descriptionThe occurrence is in the contact of the Pennsylvanian to Permian, Ahtell intrusion (Richter, 1966). Stream sediments draining the contact contain 2,000 ppb gold and 450 ppm copper (Richter and Matson, 1968; WGM, 1980). Rock chip samples found in a later follow-up by Homestake Mining Company (Bull, Freeman, and Schneider, 1999) contain more than 1,000 ppm copper and 100 ppb gold. Soils collected in the drainage at about 4,400 foot elevation contain more 500 ppm copper and 100 ppb gold.
|Geologic map unit||(-144.112200843492, 62.8396094151866)|
|Mineral deposit model||Porphyry Cu-Au? (Cox and Singer, 1986; model 20c?).|
|Mineral deposit model number||20c?|
|Age of mineralization||Uncertain; probably related to the Pennsylvanian to Permian, Ahtell pluton although there is a Jurassic diorite at the head of the drainage that may be related to this occurrence.|
|Indication of production||None|
Additional commentsAdditional information can be obtained from Ahtna Minerals in Anchorage, Alaska.
Bull, Katharine, Freeman, Larry, and Schneider, Craig, 1999, Slana property summary report for Homestake Mining Company: 11 p., analytical appendices. (Report held by Ahtna Minerals Co., Anchorage, Alaska).
Richter, D.H., 1966, Geology of the Slana district, southcentral Alaska: Alaska Division of Geological and Geophysical Surveys Geological Report 2l, 54 p., 3 sheets, scale 1:63,360.
Richter, D.H., and Matson, N.A., Jr., 1968, Distribution of gold and some base metals in the Slana area, eastern Alaska Range, Alaska: U.S. Geological Survey Circular 593, 20 p.
WGM Inc., 1980, 1979 Summary report of gold potential, Slana District, Ahtna project: WGM Inc., 10 p., map, scale 1:63,360. (Report held by Ahtna Mineral Co., Anchorage, Alaska).
|Reporters||W.T. Ellis (Alaska Earth Sciences), C.C. Hawley (Hawley Resource Group), and W.J. Nokleberg (U.S. Geological Survey)|
|Last report date||12/6/2000|