Mount Denison

The Mt Denison Project is located within the Lower Proterozoic Arunta Block of the NT, on the northern margin of the Ngalia Basin, a proven uranium province. The Ngalia Basin is asymmetric with a steep tectonised northern boundary and a shallow northerly dipping unconformity forming the southern basin boundary.  

 

The northern boundary is defined in the east by low angle thrust faults over the Arunta inlier and in the west by high angle reverse faults that have thrust the basement rocks several kilometers over the basin sediments. The basement Arunta inlier consists of a metasedimentary sequence which is folded and metamorphosed and intruded by granite.


 

Mt Denison Tenement Location Map

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The project has the potential for occurrences of metamorphic and intrusive related uranium deposits within igneous basement rocks, and sandstone uranium deposits in the overlying sedimentary units. The basement consists of metamorphic rocks and granites and pegmatites and the uranium mineralisation is associated with apatites and granites nearby.

 

The uranium mineralisation of the Ngalia Basin is hosted in sedimentary channels, piedmont style, of carbonaceous arkosic sediments located towards the base of the Mt Eclipse Sandstone. The primary source of the uranium is inferred to be from the younger granites of the Arunta inlier.

 

Historic work at the project included radiometric studies and rock chip sampling, which returned values assaying up to 0.34% U3O8, which is thought to be related to sporadic supergene concentration, as well as 0.096% U3O8 which is associated with apatite schists.

 

The Company plans to undertake a further rock chip sampling and ground radiometric surveys in the coming reporting period.