Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
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 ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
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 CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Specimen Creek Mine, Delta River District, Southeast Fairbanks Borough, Alaska, USA

This page is currently not sponsored. Click here to sponsor this page.
DisplayPhotosMapsSearch
 
 
Location: The Specimen Creek placer mine is at an elevation of about 4,000 feet in the upper part of Specimen Creek. The location is approximate but is probably about 1,800 feet west of the center of section 33, T. 18 S., R. 9 E., Fairbanks Meridian.
Geology: The course of upper Specimen Creek is apparently controlled by a steep fault that strikes north-northeast and that separates mafic-ultramafic rocks of the Upper Triassic Eureka ultramafic complex on the east from Pennsylvanian and Permian strata to the west (Rose, 1965, figure 2; Nokleberg and others, 1991). The placer mine is marked by remnants of sluice boxes; it probably was worked on a small scale. The source of the gold is uncertain; Rose (1965) suggested that it may include pyritic rocks (his group A), ultramafic rocks, and high gravels. Rose (1965, locality 14, figure 2) noted copper-stained areas in metavolcanic rocks on the west bank of Specimen Creek. His stream-sediment samples 220 and 223 were anomalous in copper, zinc, and nickel.
Workings: Several placer claims and remnants of sluices were found on the upper part of Specimen Creek (Rose, 1965). The occurrence is on active Online Exploration claims.
Age: Holocene.

Commodities (Major) - Au; (Minor) - Cu, Ni, Zn
Development Status: Undetermined.
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a).

Mineral List



2 entries listed. 2 valid minerals.

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

Nokleberg, W.J., Lange, I.M., Roback, R.C., Yeend, Warren, and Silva, S.R., 1991, Map showing locations of metalliferous lode and placer mineral occurrences, mineral deposits, prospects, and mines, Mount Hayes quadrangle, eastern Alaska Range, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1996-C, 42 p., 1 sheet, scale 1:250,000. Rose, A.W., 1965, Geology and mineral deposits of the Rainy Creek area, Mt. Hayes quadrangle, Alaska: Alaska Division of Mines and Minerals Geologic Report 14, 57 p., 1 sheet, scale 1:36,000.

 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: March 19, 2024 04:05:35 Page updated: January 20, 2015 13:27:01
Go to top of page