RARE-EARTH ELEMENT CONCENTRATION CONDITIONS IN THE RARE-METAL DEPOSITS OF THE KARAKAMYS ORE DISTRICT

Author(s):  
Daulet Muratkhanov ◽  
Kuanysh Togizov ◽  
Yerlan Aksholakov
2019 ◽  
Vol 56 (8) ◽  
pp. 857-869
Author(s):  
M.B. McClenaghan ◽  
R.C. Paulen ◽  
I.M. Kjarsgaard

A study of rare metal indicator minerals and glacial dispersal was carried out at the Strange Lake Zr – Y – heavy rare earth element deposit in northern Quebec and Labrador, Canada. The heavy mineral (>3.2 specific gravity) and mid-density (3.0–3.2 specific gravity) nonferromagnetic fractions of mineralized bedrock from the deposit and till up to 50 km down ice of the deposit were examined to determine the potential of using rare earth element and high fileld strength element indicator minerals for exploration. The deposit contains oxide, silicate, phosphate, and carbonate indicator minerals, some of which (cerianite, uraninite, fluorapatite, rhabdophane, thorianite, danburite, and aeschynite) have not been reported in previous bedrock studies of Strange Lake. Indicator minerals that could be useful in the exploration for similar deposits include Zr silicates (zircon, secondary gittinsite (CaZrSi2O7), and other hydrated Zr±Y±Ca silicates), pyrochlore ((Na,Ca)2Nb2O6(OH,F)), and thorite (Th(SiO4))/thorianite (ThO2) as well as rare earth element minerals monazite ((La,Ce,Y,Th)PO4), chevkinite ((Ce,La,Ca,Th)4(Fe,Mg)2(Ti,Fe)3Si4O22), parisite (Ca(Ce,La)2(CO3)3F2), bastnaesite (Ce(CO3)F), kainosite (Ca2(Y,Ce)2Si4O12(CO3)·H2O), and allanite ((Ce,Ca,Y)2(Al,Fe)3(SiO4)3(OH)). Rare metal indicator minerals can be added to the expanding list of indicator minerals that can be recovered from surficial sediments and used to explore for a broad range of deposit types and commodities that already include diamonds and precious, base, and strategic metals.


Fact Sheet ◽  
2018 ◽  
Author(s):  
Mark J. Mihalasky ◽  
Robert D. Tucker ◽  
Karine Renaud ◽  
Ingrid M. Verstraeten

Author(s):  
Ian M. London ◽  
Mandeep Singh Rayat ◽  
William Mercer

Avalon Rare Metals Inc., a mineral exploration and development company with a primary focus on developing rare earth element and rare metal projects, launched its University Outreach Initiative in 2011. A scarcity of engineers in North America familiar with rare earth process engineering and a lack of rare earth element course material at Canadian universities were key motivating factors for the launch of the Outreach Initiative. Through this Initiative, the Company has been proactive in educating students about science and engineering issues related to rare earth elements, by means of lectures, sponsored course projects, and sponsored participation at conferences and symposia. All projects had a sustainability dimension. This paper details seven undergraduate engineering projects and three graduate research projects initiated by Avalon at a total of seven different universities. The paper also provides recommendations to university engineering and science programs to ensure graduating students can build and play contributing roles in the emerging rare earth supply chain sector.


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