|Quadrangle map, 1:250,000-scale||TK|
|Quadrangle map, 1:63,360-scale||A-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Placer claims on Landslide Creek, a south tributary to the Oshetna River, extend upstream for about 2 1/2 miles from its mouth. The coordinates are at an elevation of about 3,700 feet. The location is accurate to within 1/2 mile.|
Geologic descriptionUpper Landslide Creek drains an area of Tertiary volcanic rocks and Quaternary landslide deposits (Kurtak and others, 1992). The lower part of the drainage is underlain by Talkeetna Formation volcanic rocks, sandstone(?), and argillite; Tertiary fluviatile conglomerate; a Jurassic intrusion; and Quaternary landslide and glacial deposits. Gold occurs in the alluvial gravel deposits which are up to 400 feet wide and 20 to 40 feet thick (Kurtak and others, 1992). A placer sample collected by the U.S. Bureau of Mines contains no gold (Kurtak and others, 1992).
|Geologic map unit||(-147.863384309425, 62.2375269663911)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Workings or exploration||Twenty-five claims were staked in 1982 (Kurtak and others, 1992). A placer sample collected by the U.S. Bureau of Mines contains no gold (Kurtak and others, 1992).|
|Indication of production||None|
|Reserve estimates||An estimated 1.5 million cubic yards of alluvial material are in the drainage (Kurtak and others, 1992).|
Additional commentsMAS/MILS number 20760115.
Csejtey, Bela, Jr., Nelson, W.H., Jones, D.L., Silberling, N.J., Dean, R.M., Morris, M.S., Lanphere, M.A., Smith, J.G., and Silberman, M.L, 1978, Reconnaissance geologic map and geochronology, Talkeetna Mountains quadrangle, northern part of Anchorage quadrangle, and southwest part of Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-558-A, 60 p., 1 sheet, scale 1:250,000.
|Reporters||R.K. Rogers (U. S. Geological Survey contractor)|
|Last report date||10/3/2002|