Significant zones and thicknesses (up to 6m) of uranium mineralisation have been delineated at the Likuyu North prospect where a detailed ground scintillometer survey has demonstrated the internal coherency of the large 5 km by 1 km aerial radiometric anomaly.
In addition, RC drilling to depths of 130m has further confirmed the depth extent of the mineralisation enabling interpretation of a 3D anomaly envelope that could contain significant mineralisation accumulations similar to that of Mantra’s Nyota deposit, 25km to the north.
Pitting programmes were initiated to investigate the source of the strongest ground scintillometer anomalies with over 50 widely spaced, 3m deep pits dug. Two pits exposed visible spots of green uranium mineralisation (visually interpreted to be phosphuranylite) associated with extremely high scintillometer readings. Vertical channel samples collected from all pits have been submitted to the laboratory for assaying, and returns are awaited.
Two 300m spaced trenches were also dug to follow up these pits. High grade uranium mineralisation was intersected in trench MKTR0001 which returned 2m at 3,040 ppm U3O8 from a wider (inclined) zone of 6.3m at 1,401 ppm U3O8. Both trenches exposed visible uranium mineralisation in thick coarse grained cross bedded arkosic sandstone units, separated by thinner siltstone and mudstone. Assays for MKTR0002 are pending.
The Likuyu North mineralisation, radiometric anomaly and host stratigraphy are similar to that at Mantra Resources’ Nyota Project. Mineralisation is consistent with uranium bearing fluids migrating along permeable coarse grained units and uranium mineralisation being deposited adjacent to, and within, reduced siltstone and mudstone units.
John Cottle, company’s managing director said “These excellent results provide very strong evidence of the high potential for discovery of significant accumulations of roll-front uranium type mineralisation in Uranex’s Mkuju exploration ground in Southern Tanzania”.
Based on the results to date and expected good results to come, exploration at the Mkuju Project is planned to be intensified for the 2010 field season with the objective of progressing towards, in-fill, and extension of current mineralisation, as quickly and efficiently as possible.
