Karrat REE
Licence 2010/05, 122km2
Avannaa located a Rare Earth Element (REE) mineralisation during the 2007 field season whilst conducting regional prospecting. The mineralization is located in a sequence of amphibolites and mafic schists belonging to the early Proterozoic Karrat Group. The grab samples had estimated total REE oxides + yttrium oxide (TREO + Y) of 0.8 to 1.7 wt %. Further prospecting in 2008 demonstrated that the REE mineralisation occurs in a 13 to 35 meter thick layer, conformable with the regional foliation, with a strike length of over 1.5 km. The down dip extent is unknown. The anomaly is located on the coast in low lying easy to access terrain.
During the 2009 field season more work was conducted including channel sampling, bulk sampling and prospecting. A channel sample profile through 29 meters of the mineralised layer gave an average grade of TREO+Y = 1.2% including 12.5 meters thickness with TREO+Y=1.47% with individual values of up to 2.59% over 1 meter. The content of HREO+Y (rare earth oxides Eu to Lu + Y as percentage of TREO+Y) is between 14.2% and 14.8% in this interval.
In addition a second discovery site was discovered during regional prospecting that has the potential to at least double the tonnage of the deposit and increases the overall strike length of the system to >10 km. Additional prospective areas have been identified for follow up during the 2010 field seaon that have the potential to further increase the regional extent of mineralisation.
Rare earth elements are specialised commodities that are often used for high-technology applications in electronics, energy efficient lighting, hybrid cars, LCD screens and super-magnets. Most of the world’s rare earths are produced from one mine in China and there is a growing desire to see some diversity of supply.
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