Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

California Creek Mine, Shungnak District, Northwest Arctic Borough, Alaska, USA

This page is currently not sponsored. Click here to sponsor this page.
 
 
Stream gradient is approximately 200 feet per mile. Asbestos fibers said to be as long as 3 inches were found in placer workings.
Location: The California Creek placer deposit is on California Creek between Little Creek and Wonder Creek. The coordinates are for the mine symbol on Shungnak D-2 quadrangle. The deposit is in sections 14, 15, and 22, T. 18 N., R. 10 E., of the Kateel River Meridian. Cobb (1972, MF-448), location 16, and Mayfield and Grybeck (1978), location 34.
Geology: At California Creek, placer gold occurs in the lower 5 feet of creek gravels, but not in bedrock crevices. The gold is smooth, flat and coarse; about half of it was nugget size. It was worth about $17.20 per ounce in 1931. The grade of the deposit was said to average $0.81 per cubic yard up to and including production from 1930. In 1931 the ground averaged about $0.385 per cubic yard (gold at $20.67/ounce). Both creek and bench deposits were auriferous. Depth to bedrock ranged from 14 to 20 feet. The gravel is coarse, up to 3 inches in diameter, and contains numerous subangular boulders of greenstone and greenschist up to 3 feet in diameter. Nephrite boulders were common, but few of gem quality. Asbestos fibers said to be as long as 3 inches were found in placer workings. The valley is unglaciated. The stream drains an area of lower Paleozoic metavolcanic rock and phyllite that is cut by many quartz veins from which the gold in the placers was probably derived. The veins may be genetically linked to the mid-Paleozoic granitic intrusion that outcrops on lower Lynx Creek (ARDF number SH006) (Reed, 1931). Quartz crystals have been recovered from gold placers.
Workings: California Creek has been mined since gold was discovered on it in 1918. The deposit was mined by hydraulicking pits and washing the lower 6 to 10 feet of gravel through a sluice box. Flumes, hydraulic mining equipment and piles of stripped gravel remain along the creek. The deposit is probably mined out.
Age: Quaternary.
Reserves: The deposit is probably mined out.

Commodities (Major) - Au; (Minor) - Asbestos, nephrite
Development Status: Yes; small
Deposit Model: Placer Au-PGE (Cox and Singer, 1986; model 39a).

Mineral List



1 entry listed. 1 valid mineral.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Anderson, Eskil, 1945, Petrographic descriptions of rocks collected during 1944 field investigation in north-west Alaska, and lists of ore and rock samples and placer concentrates collected in northwestern and interior Alaska during 1945 field season: Alaska Territorial Department of Mines Miscellaneous Report 195-28, 76 p. Anderson, Eskil, 1947, Mineral occurrences other than gold deposits in northwestern Alaska: Alaska Territorial Division of Mines Pamphlet 5-R, 48 p. Brooks, A.H., 1925, Alaska's mineral resources and production, 1923: U.S. Geological Survey Bulletin 773-A, p. 3-52. Brooks, A.H., and Capps, S.R., 1924, The Alaska mining industry in 1922: U.S. Geological Survey Bulletin 755-A, p. 1-56. Cathcart, S.H., 1920, Mining in northwestern Alaska: U.S. Geological Survey Bulletin 712-G, p. 185-198. Cobb, E.H., 1972, Metallic mineral resources map of the Shungnak quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-448, 1 sheet, scale 1:250,000. Cobb, E.H., 1973, Placer deposits of Alaska: U.S. Geological Survey Bulletin 1374, 213 p. Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in five quadrangles in west central Alaska (Hughes, Kotzebue, Melozitna, Selawik, Shungnak): U.S. Geological Survey Open-File Report 75-627, 58 p. Cobb, E.H., 1977, Placer deposit map of central Alaska: U.S. Geological Survey Open-File Report 77-168-B, 64 p., 1 map, scale 1:1,000,000. Fritts, C.E., 1969, Geology and geochemistry in the southeastern part of the Cosmos Hills, Shungnak D-2 quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Geological Report 37, 35 p., 2 sheets, scale 1:48,000. Fritts, C.E., 1970, Geology and geochemistry of the Cosmos Hills, Ambler River and Shungnak River quadrangles, Alaska: Alaska Division of Geological and Geophysical Surveys Geological Report 39, 63 p., 4 sheets, scale 1:63,360. Grybeck, Donald, 1977, Map showing known mineral deposits of the Brooks Range, Alaska: U.S. Geological Survey Open-File Report 77-166-C, 45 p., 1 sheet, scale 1:1,000,000. Martin, G.C., 1920, The Alaska mining industry in 1918: U.S. Geological Survey Bulletin 712-A, p. 1-52. Mayfield, C.F., and Grybeck, D., 1978, Mineral occurrences and resource map of the Ambler River quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-120-I, 1 sheet, scale 1:250,000. Moffit, F.H., 1927, Mineral industry in Alaska in 1925: U.S. Geological Survey Bulletin 792-A, p. 1-39. Reed, I.M., 1931, Report on the placer deposits of the upper Kobuk goldfields: Alaska Territorial Department of Mines Miscellaneous Report 37-1, 57 p. Smith, P.S., 1929, Mineral industry of Alaska in 1926: U.S. Geological Survey Bulletin 797, p. 1-50. Smith, P.S., 1930, Mineral industry of Alaska in 1927: U.S. Geological Survey Bulletin 810-A, p. 1-64. Smith, P.S., 1930, Mineral industry of Alaska in 1928: U.S. Geological Survey Bulletin 813-A, p. 1-72. Smith, P.S., 1932, Mineral industry of Alaska in 1929, in Smith, P.S., and others Mineral resources of Alaska, report on progress of investigations in 1929: U.S. Geological Survey Bulletin 824-A, p. 1-81. Smith, P.S., 1933, Mineral industry of Alaska in 1930: U.S. Geological Survey Bulletin 836-A, p. 1-83. Smith, P.S., 1933, Mineral industry of Alaska in 1931: U.S. Geological Survey Bulletin 844-A, p. 1-81. Smith, P.S., 1934, Mineral industry of Alaska in 1932: U.S. Geological Survey Bulletin 857-A, p. 1-91. Smith, P.S., 1937, Mineral industry of Alaska in 1935: U.S. Geological Survey Bulletin 880-A, p. 1-95. Smith, P.S., 1938, Mineral industry of Alaska in 1936: U.S. Geological Survey Bulletin 897-A, p. 1-107. Smith, P.S., 1942, Mineral industry of Alaska in 1940: U.S. Geological Survey Bulletin 933-A, p. 1-102. Smith, P.S., and Mertie, J.B., Jr., 1930, Geology and mineral resources of northwestern Alaska: U.S. Geological Survey Bulletin 815, 315 p.

Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: June 18, 2019 04:45:41 Page generated: January 19, 2015 12:51:40
Go to top of page