Nörr Döttern (U, Au)
The Nörr Döttern project consists of four exploration licenses located within the Arvidsjaur uranium province of northern Sweden (figure 1). Uranium mineralisation was originally discovered within the area by the Swedish Geological Survey (SGU) during the mid- 1970's using boulder tracing.
Historical surface sampling, mapping, trenching and ground geophysics completed during 1974-1975 resulting in the discovery of eight significant uranium bearing prospect areas associated with discrete mineralised boulder fields and locallised areas of mineralised bedrock (figure 2 & table 1).
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Results of historic boulder sampling averaged 0.32% U3O8 with ranges up to 1.0% U3O8 while trenching, which locally exposed high-grade uranium-bearing beadrock returned a best intersection of 3m @ 3.5%U3O8 (including 0.2m @28.2% U3O8) from the Nörr Döttern 2 prospect (Photo 1). Limited diamond drilling was undertaken by the SGU at the Nörr Döttern 1, Nörr Döttern 2 and Västra Kikkejaur prospects with a best result of 5m @0.13 %U3O3 (DOT77003) returned from the later.
The project geology is comprised dominantly by a series of Palaeozoic granites and epi-syenites which have been emplaced into a sequence of metamorphosed sediments and volcanics assigned to the early Proterozoic Karelian Supracrustal group (figure 3). Mineralisation is typically fracture controlled and associated with areas of alkali metasomatism.
Östra Järntjärnbäcken Prospect
Boulder and bedrock mineralisation occurrences at the Östra Järntjärnbäcken Prospect were originally tested by the SGU using a program of hammer drilling during the 1970’s (figure 4). Drilling reported 15 out of 21 holes as containing anomalous uranium values including peak values of 0.47%U3O8 and 0.05%U3O8 returned respectively from holes H83011 and H83012.
Following the return of positive results returned from a ground scintillometer survey completed in 2007, Hodges Resources undertook a program of 7 diamond holes during the 2008 winter field season testing both the strike and depth continuities of previously defined mineralization. The program successfully intersected fracture controlled mineralisation with better intersections including: 7m @0.13%U3O8 from 22m (JB08002), 1m @0.10%U3O8 from 36m (JB08007) and 5m @0.05%U3O8 from 36m (JB08007).
Nörr Döttern 2 Prospect
Summer 2009 field activities focused on the Nörr Döttern 2 prospect area where radon cup and further ground scintillometer surveying over an ~ 1.0km2 grid was completed to follow-up areas of bedrock mineralisation previously identified by the SGU. A total of 89 radon cup detectors were deployed at 25m or 50m grid spacings and an additional 6.4km (prospect total = 13.3km) of ground scintillometer measurements were completed. Results from both surveys identified multiple target areas interpreted as prospective as the sources for uraniferous boulder trains located down ice flow from the Nörr Döttern 2 prospect area (figures 5 & 6). Permits are currently being prepared for a winter drill program to test higher priority targets.
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