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

Porcupine River--ancient channel placer Occurrence, Sheenjek District, Yukon-Koyukuk Borough, Alaska, USA

This page is currently not sponsored. Click here to sponsor this page.
DisplayPhotosMapsSearch
 
 
See MAS/MILS Sequence # 0020330010 (USBM, 1995)
Location: Location plotted is locality 3 of Barker (1981, p. 47) and 9a of Barker and Clautice (1978, p. 14), in abandoned stream drainage perched about 300 ft (91 m) above river level on south side of Porcupine River, midway between the junctions of Campbell River and Fred Creek, and about 9 mi (14.4 km) downstream from the Yukon border; located to within 1000 ft (305 m).
Geology: Placer deposit in abandoned channel now perched 100-300 ft (30.5-91.5 m) above river level; probably derived from granitic igneous rocks 10-35 mi (16-56 km) upstream in Yukon Territory (Barker and Clautice, 1978, p.19, no.9).
Workings: Panned samples contained 10,000 ppm Zn, 5000 ppm Sn, and minor tungsten (Barker, 1981, p. 117-120).

Commodities (Major) - Sn; (Minor) - B, Pb, Rare earth elements, W, Zn
Development Status: No
Deposit Model: Placer, stream

Mineral List



3 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

Barker, J.C., 1981, Mineral investigations in the Porcupine River drainage, Alaska: U.S. Bureau of Mines Open-File Report 27-81, 189 p., 2 sheets. Barker, J.C., and Clautice, K.H., 1978, Mineral reconnaissance of the Porcupine River region--A summary report: U.S. Bureau of Mines Open-File Report 87-78, 20 p.

 
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 10:19:48 Page updated: January 21, 2015 02:29:53
Go to top of page