Canada

Kiggavik Project

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Categories

Overview

Mine TypeOpen Pit & Underground
 Archived Information
Commodities
  • Uranium
Mining Method
  • Truck & Shovel / Loader
  • Drift & Fill
Mine Life14 years (as of Jan 1, 2014)
ShapshotAugust 3, 2016 – The Beverly and Qamanirjuaq Caribou Management Board is very pleased the federal government has accepted the Nunavut Impact Review Board’s (NIRB) recommendation that AREVA’s proposed Kiggavik uranium mine project should not proceed at this time.The BQCMB has been a fully engaged participant in all stages of the NIRB’s screening and review processes for the Kiggavik uranium mine proposal since 2009.

Owners

SourceSource
CompanyInterestOwnership
UEX Corp. 16.9 % Indirect
Denison Mines Corp. 16.9 % Indirect
Orano Canada Inc. 24.0034 % Indirect
JCU (Canada) Exploration Co., Ltd. 33.81 % Indirect
Urangesellschaft Canada Ltd. 42.1848 % Indirect
33.8118% JCU (Canada) Exploration Co., Ltd.

24.0034% Orano Canada Inc.

42.1848% Urangesellschaft Canada Ltd.

Through its 50% ownership of JCU (Canada) Exploration Company, Limited (“JCU”), Denison holds indirect interests in the Kiggavik project (JCU 33.8123%).

Through its 50% ownership of JCU (Canada) Exploration Company, Limited (“JCU”), UEX holds indirect interests in the Kiggavik project (JCU 33.8123%).

On August 22, 2022, Uranium Energy Corp and UEX Corporation closed the previously announced plan of arrangement (the “Arrangement”) under the Canada Business Corporations Act, pursuant to which UEX Corporation (UEC) acquired all of the issued and outstanding common shares of UEX that it did not already own.

Deposit type

  • Unconformity related

Summary:

Basement host rocks are composed of metasediments, and to a lesser extent altered granite and intrusive rocks. Metasediments are sedimentary rocks that have been metamorphosed (altered by heat, pressure or chemically active fluids). Intrusive rocks are igneous rocks that intrude into pre-existing rocks, along some structure. Uranium mineralization in the Kiggavik area is hosted for the most part in altered metasedimentary rocks (mainly meta-arkose, metapelites and sericite schist), and to a much lesser extent in altered granite and intrusive rocks. There is no mineralization hosted in the Mackenzie diabase which cuts through the Kiggavik property.

In general the mineralization is finely disseminated along foliation planes and/or in veinlets parallel to the foliation, but can also be found as fracture infill and coating along cross-cutting structures. The two major uranium minerals are pitchblende and coffinite. Secondary uranium minerals are not common. Fine-grained uranophane occurs in weathered rocks outcropping at surface but also occasionally at greater depth. Pitchblende and coffinite are often associated with marcasite and pyrite. Other sulphides or accessory metals are present only in minor amounts, indicating the single elemental composition characteristic of the Kiggavik ore zones. The uranium mineralization is associated with an intensive alteration halo. The alteration is characterized by desilification and by the conversion of feldspar and mica to clay minerals consisting mainly of illite and sericite which is somewhat typical of unconformity type deposits.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Summary:

The nominal capacity of the current mill design is 3,190 tonnes of ore at 0.4% U per year, to produce up to 4,000 tonnes of U per year. The key circuits included in the proposed Kiggavik mill are: • Crushing and grinding where the rock is mixed with water and reduced in size to increase the surface area off the ore particles relative to their mass; • Leaching where the ore is mixed with reagents to dissolve the uranium, along with other metals and elements, from the rock into solution; • Solid-liquid separation where the particles, which no longer contain uranium, are separated from the solution; • Extraction and purification where the dissolved uranium is separated from any other metals and elements that were solubilised; and • Precipitation, drying and packaging of the uranium as a granular uranium concentrate. In the mill process all the residual rock particles and process solution waste streams will be treated in a Tailings Neutralization circuit. Solution streams will be recycled where possible, with bleed streams treated in Tailings Neutralization. The mill complex will consist of a central mill building housing the milling process equipment and services with main ancillary buildings joined by arctic corridors. The four key ancillary buildings supporting mill operations will be the acid plant, oxygen plant, hydrogen peroxide storage, and powerhouse.

Processing

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Production

CommodityUnitsAvg. Annual
Uranium kt 3.8
All production numbers are expressed as concentrate.

Production Costs

Commodity production costs have not been reported.

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Source Source
Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 6, 2018

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