|Quadrangle map, 1:250,000-scale||TK|
|Quadrangle map, 1:63,360-scale||A-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Placer mining has occurred on North Creek, a west tributary to Crooked Creek at several locations. The coordinates are near the midpoint of the creek at an elevation of about 3,750 feet, near the southeast corner of sec. 6, T. 22 N., R. 12 E., Seward Meridian. The location is accurate.|
Geologic descriptionThe rocks in the drainage of North Creek drains are volcanic and sedimentary rocks of the Lower Jurassic, Talkeetna Formation (Csejtey and others, 1978). The gold placers occurs in Tertiary(?) alluvial gravel. Fine gold also occurs in Quaternary glacial and glaciofluvial deposits in the vicinity, but not in mineable quantities (Cobb, 1973 [B 1374]). Intermittent, small-scale mining occurred from 1912 to at least 1961 (Cobb, 1973).
|Geologic map unit||(-147.31279836202, 62.013991418008)|
|Mineral deposit model||Placer Au-PGE (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Tertiary(?) and Quaternary placers.|
|Workings or exploration||Intermittent, small-scale mining occurred from 1912 to at least 1961 ( Cobb, 1973).|
|Indication of production||Yes; small|
Additional commentsMAS/MILS number 20760027.
Chapin, Theodore, 1918, The Nelchina-Susitna region, Alaska: U.S. Geological Survey Bulletin 668, 67 p.
Cobb, E.H., 1972, Metallic mineral resources map of the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-370, 1 sheet, scale 1:250,000.
Cobb, E.H., and Csejtey, Bela, Jr., 1980, Summaries of data on and lists of references to metallic and selected nonmetallic mineral deposits in the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-716, 63 p.
Csejtey, Bela, Jr., and Miller, R.J., 1978, Map and table describing metalliferous and selected nonmetalliferous mineral deposits in the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-558-B, 22 p., 1 sheet, scale 1:250,000.
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.
MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.
Martin G.C., and Mertie, J.B., 1914, Mineral resources of the upper Matanuska and Nelchina valleys, Alaska: U.S. Geological Survey Bulletin 592-H, p. 273-299.
|Reporters||R.K. Rogers (U. S. Geological Survey contractor)|
|Last report date||10/3/2002|