Norra Kärr
Norra Kärr or Norra Kärr Alkaline Complex is an
A study has shown that the elevated rare-earth element concentrations in the bedrock in the Norra Kärr area are particularly well reflected in high contents of these elements in the fern Dryopteris filix-mas. This raises the possibility for the fern species to be used in biogeochemical prospecting.[4]
Norra Kärr is one of the two known sites where the mineral jinshajiangite can be found naturally, the other being in China.[5][6]
Mine project
Rare earth elements and Zirconium |
The Norra Kärr mine project represents one of the largest zirconium reserves in Sweden having estimated reserves of 58 million tonnes of ore grading 1.7% zirconium metal.[7]
Since 2009, the Canadian company
In February 2016 the supreme administrative court of Sweden withdrew Tasman's exploitation concession for Norra Kärr.
References
- ^ a b c d "Report on the Geology, Mineralization and Exploration Potential of the Norra Kärr Zirconium-REE Deposit, Gränna, Sweden" (PDF). Tasman Metals Ldt. Archived from the original (PDF) on 2014-02-07. Retrieved 2013-01-04.
- ^ .
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- ^ Bluemel, Britt; Leijd, Magnus; Dunn, Colin; Hart, Craig J.R.; Saxon, Mark; Sadeghi, Martiya (2013). "Biogeochemical expression of rare earth element and zirconium mineralization at Norra Kärr, Southern Sweden" (PDF). Journal of Geochemical Exploration. 133 (15–24).[dead link]
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- .
- ^ "Norra Kärr mine" (PDF). tasmanmetals.com. 2012. Retrieved 2013-07-05.
- ^ "Gränna kan bli nästa gruvort". Archived from the original on 2012-10-18. Retrieved 2017-07-26.
External links
- Bryta jordartsmetaller i Norra Kärr? - Presentation av Olov Holmstrand, 2016-04-02 (in Swedish), Naturskyddsföreningen i Tranås [Swedish Society for Nature Conservation in Tranås]
- Vattnets väg från Norra Kärr - Presentation av Stellan Hamrin, 2016-04-02 (in Swedish) Naturskyddsföreningen i Tranås [Swedish Society for Nature Conservation in Tranås]