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 ArticlesThe ElementsBooks & Magazines
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 MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Next Prospect, Chichagof District, Sitka Borough, Alaska, USA

This page is currently not sponsored. Click here to sponsor this page.
 
 
The prospect is in West Chichagof-Yakobi Wilderness.
Location: The Next prospect is at an elevation of about 1,000 feet, about 1.7 miles southeast of the head of Slocum Arm. The prospect is 0.2 mile west-southwest of the center of sec. 22, T. 51 S., R. 60 E. It is location P-96 of Bittenbender and others (1999) and MAS no. 0021140199 (U.S. Bureau of Land Management, 2002). The location is accurate within 0.5 mile.
Geology: Johnson and Karl (1985) map the rocks in the area of this prospect as Triassic(?) greenstone and marble, Cretaceous(?) phyllite, and the Freeburn assemblage, a collage of kilometer-scale, fault-bounded, lozenge-shaped blocks of Cretaceous and Cretaceous(?) metasedimentary and metavolcanic rocks. The contact between the Triassic(?) strata and the Cretaceous/Cretaceous(?) strata is the regional-scale Border Ranges Fault, a high-angle, northwest-striking fault that passes through just southwest of the prospect. Bittenbender and others (1999), citing Loney and others (1963), describe the prospect as malachite and disseminated pyrite and pyrrhotite in greenstone. Triassic(?) greenstone elsewhere on northwest Chichagof Island generally contains primary sulfide minerals that are about the same age as the greenstone host rock (see, for example, SI035 and SI036).
Age: Triassic(?) greenstone elsewhere on northwest Chichagof Island generally contains primary sulfide minerals that are about the same age as the greenstone host rock.

Commodities (Major) - Cu
Development Status: Undetermined.
Deposit Model: Basaltic copper? (Cox and Singer, 1986; model 23).

Mineral List



3 entries listed. 3 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

Bittenbender, P., Still, J.C., Maas, K., and McDonald, M., Jr., 1999, Mineral resources of the Chichagof and Baranof Islands area, southeast Alaska: Bureau of Land Management, BLM-Alaska Technical Report 19, 222 p. Johnson, B.R, and Karl, S.M., 1985, Geologic map of western Chichagof and Yakobi Islands, southeastern Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map 1-1506, 1 sheet, scale 1:125,000. Loney, R.A., Berg, H.C., Pomeroy, J.S., and Brew, D.A., 1963, Reconnaissance geologic map of Chichagof Island and northwestern Baranof Island, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-388, 1 sheet, scale 1:250,000. U.S. Bureau of Land Management, 2002, Alaska mineral locations database report (Sitka quadrangle), July 2, 2002, 205 p. [http://imcg.wr.usgs.gov/dem.html]

 
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 1993-2020, 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: March 28, 2020 09:51:41 Page generated: January 18, 2015 04:10:22
Go to top of page