|Quadrangle map, 1:250,000-scale||NM|
|Quadrangle map, 1:63,360-scale||C-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This alluvial placer gold mine is on Lindblom Creek, an east tributary to Snake River. The placer is upstream of the Snake River road crossing of Lindblom Creek and 1.5 miles south-southwest of Mount Byrnteson. This is locality 97 of Cobb (1972 [MF 463], 1978 [OFR 78-93]). The location is in the east-central part of section 15, T. 10 S., R. 34 W., Kateel River Meridian, and is accurate to about 500 feet.|
Small amounts of placer gold and scheelite are present on Lindblom Creek. Some placer gold was produced from 4- to 5-foot-thick gravels in the narrow, 25-foot-wide part of the upper creek (Collier and others, 1908; Moffit, 1913). Some scheelite-bearing quartz veins are also reported in the drainage (Coats, 1944; Anderson, 1947; Thorne and others, 1948).
Lower Lindblom Creek drains an area of sulfidized schist marked by an arsenic soil anomaly defined as greater than 400 ppm arsenic. A gold-in-soil anomaly, contained within the arsenic anomaly, defined as greater than 80 ppb gold, extends for about 2000 feet along and immediately north of Lindblom Creek (BHP Minerals, written communication, 1990; C. C. Hawley, written communication for Kennecott Exploration Company, 1993). The arsenic anomaly projects toward the extensive arsenic anomaly at the Rock Creek deposit (NM207) but is separated from it by a possibly barren zone along the post-mineral Brynteson fault, the unnamed, north-striking fault mapped by Hummel (1962 [MF 247]), about one-half mile west of Mount Brynteson.The country rocks are mainly chloritic mica schist of Paleozoic protolith age (Hummel, 1962 [MF 247]; Sainsbury, Hummel, and Hudson, 1972 [OFR 72-326]; Till and Dumoulin, 1994; Bundtzen and others, 1994).
|Geologic map unit||(-165.445407629736, 64.6214338547407)|
|Mineral deposit model||Alluvial placer gold deposit probably in part developed as a residual placer on sulfidized (arsenopyrite) schist. (Cox and Singer, 1986; model 39a).|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary.|
|Alteration of deposit||Sulfidization of bedrock schist.|
|Workings or exploration||Some small-scale surface placer mine workings are present.|
|Indication of production||Yes; small|
|MRDS Number||A012896; D002587|
Anderson, Eskil, 1947, Mineral occurrences other than gold deposits in northwestern Alaska: Alaska Territorial Division of Mines Pamphlet 5-R, 48 p.
Bundtzen, T.K., Reger, R.D., Laird, G.M., Pinney, D.S., Clautice, K.H., Liss, S.A., and Cruse, G.R., 1994, Progress report on the geology and mineral resources of the Nome mining district: Alaska Division of Geological and Geophysical Surveys, Public Data-File 94-39, 21 p., 2 sheets, scale 1:63,360.
Coats, R.R., 1944, Lode scheelite occurrences of the Nome area: U.S. Geological Survey Open-File Report 17, 6 p.
Cobb, E.H., 1972, Metallic mineral resources map of the Nome quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-463, 2 sheets, scale 1:250,000.
Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Nome quadrangle, Alaska: U.S. Geological Survey Open-File report 78-93, 213 p.
Collier, A.J., Hess, F.L., Smith, P.S., and Brooks, A.H., 1908, The gold placers of parts of Seward Peninsula, Alaska, including the Nome, Council, Kougarok, Port Clarence, and Goodhope precincts: U.S. Geological Survey Bulletin 328, 343 p.
Hummel, C.L., 1962, Preliminary geologic map of the Nome C-1 quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-247, 1 sheet, scale 1:63,360.
Moffit, F.H., 1913, Geology of the Nome and Grand Central quadrangles, Alaska: U.S. Geological Survey Bulletin 533, 140 p.
Sainsbury, C.L., Hummel, C.L., and Hudson, Travis, 1972, Reconnaissance geologic map of the Nome quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 72-326, 28 p., 1 sheet, scale 1:250,000.
Thorne, B.L., Muir, N.M., Erickson, A.W., Thomas, B.I., Heide, H.E., and Wright, W.S., 1948, Tungsten deposits of Alaska: U.S. Bureau of Mines Report of Investigations 4174, 51 p.
Till, A.B., and Dumoulin, J.A, 1994, Geology of Seward Peninsula and St. Lawrence Island, in Plafker, G., and Berg, H.C., eds., The Geology of Alaska: Geological Society of America, DNAG, The Geology of North America, v. G-1, p. 141-152.
|Reporters||C.C. Hawley and Travis L. Hudson|
|Last report date||7/10/2000|