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United States
Daneros Mine

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 Location:
62 km W from Blanding, Utah, United States

  Address:
217 Queen St. West, Suite 401
Toronto
Ontario, Canada
M5V 0R2
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Overview

StatusCare and Maintenance
Mine TypeUnderground
Commodities
  • Uranium
  • U3O8
Mining Method
  • Split-shooting
  • Room-and-pillar
Production Start...
Mine Life5 years (as of Jan 1, 2017)
Daneros Mine- Located in the White Canyon District, the Project is a developed and permitted underground mine that was most recently in production in 2013.


Owners

Source:
CompanyInterestOwnership
Consolidated Uranium Inc. 100 % Indirect
Oct. 27, 2021 (GLOBE NEWSWIRE) - Consolidated Uranium Inc. and Energy Fuels Inc. are pleased to announce the closing of the acquisition, previously announced on July 15, 2021, of a portfolio of conventional uranium projects located in Utah and Colorado pursuant to the asset purchase agreement among CUR and certain wholly-owned subsidiaries of Energy Fuels.
Pursuant to the Purchase Agreement, CUR has acquired from the EF Parties a 100% interest in the Tony M, Daneros and Rim mines in Utah, as well as the Sage Plain property and eight U.S. Department of Energy Leases in Colorado.

Contractors

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Deposit Type

  • Sandstone hosted


Summary:

The Daneros uranium deposit can be classified as Phanerozoic Sandstone; Tabular/Peneconcordant; Basal-channel Type in the classification scheme of Dahlkamp (1993). The Shinarump Member of the Chinle is the only host rock horizon with this type of deposit on the property. The property is not known to hold any potential for any other type of deposit.

The uranium deposit at the Daneros Mine, like nearly all others in the White Canyon district, is in the lower part of the Shinarump, especially where it has scoured into the Moenkopi. The lithology, facies, sedimentary structures, and locations within the channel deposits all were important in controlling the migration of fluids and localization of the deposits. Coarser-grained rock is more favorable than finegrained sand or silt units. Most of the uranium mineralization is overlying impermeable siltstones of the Moenkopi or local siltstone lenses internal of the Shinarump. The lateral edges of channels where they are bounded by mudstones are also favorable locations for mineralization. Sandstones and conglomerates bounded on the top by siltstones or clay layers are also favorable. Intersections of channels and meanders have been found to be favored locations. The most favorable sites are in the coarser sandstone/conglomerates adjacent to finer sediments that contain vegetal matter. The uranium was transported into the area in oxidized groundwaters. The permeability differences related to the grain size of the various f ........


Mining Methods

  • Split-shooting
  • Room-and-pillar


Summary:

The Daneros mine operated from 2009 until October 2012 when the mine was placed on standby. The Daneros deposit is accessed from the surface through a 450-foot long decline at a gradient of -15%. During this time period random room and pillar mining was employed, as was typical for the deposits in the local region. Mining utilized rubber tired loaders and small trucks to transport mineralized material to the surface, where it was loaded into over-the-road trucks, covered by a secure tarpaulin and transported to the WMM.

The Shinarump deposits are usually thinner than the mining height needed for personnel and equipment access; therefore, the mineralized material was mined by a split-shooting method. The split-shooting mining method involves assessing each face as the stopes advance by the mine geologist, engineer, mine foreman, or experienced lead-miner. Because the grades and thickness of the typical Shinarump uranium deposits are highly variable, they are usually unpredictable from one round to the next. (A round is a complete mining cycle of drillblast-muck-ground support, if needed to be ready to drill again; a normal round advances a face about 6 feet.). Typically, the thickness of the mineralized material was less than the height needed to advance the stope. As the stope face was being drilled, the blast holes were probed with a Geiger Counter probe in order to estimate the U3O8 grade. The uranium mineralization is usually dark gray to black. The minera ........


Crushing and Grinding


Processing

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Summary:

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Reserves at December 31, 2019:
Mineral Resources are estimated at a uranium cut-off grade of 0.23% eU3O8

CategoryTonnage CommodityGradeContained Metal
Indicated 20 kt U3O8 0.36 % 142 k lbs
Inferred 7 kt U3O8 0.37 % 52 k lbs



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 15, 2022
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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
Technical Report 2018
Corporate Presentation 2017
Form 10-K 2017
Form 10-K 2016
Form 10-K 2015
Technical Report 2012
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