 |
 |
 |
 |
 |
 |
Mkuju and Songea Projects (UNX 100%)
Background
The Mkuju and Songea projects are located in the south-west of Tanzania close to the country boarders of Mozambique and Malawi. The project areas comprise 8 granted/offered tenements and 3 applications covering a total area of about 8,000km2.
Click here to view Mkuju Tenements and Geology
The areas incorporate exposure of the uranium prospective stratigraphic interval of the Karoo basin sediments. Most of the known uranium mineralisation in southern Africa are hosted by similar Karoo sandstones.
Uranium mineralisation was first evidenced in this geological region as a result of exploration during the period 1978-1982. Assessment of airborne radiometric anomalies during the period led to the discovery of two uranium deposits at Mkuju and Mdaba. These deposits were not quantified but record uranium values up to 6.16kg/t U3O8. These deposits are now largely contained within the world heritage listed Selous Game Reserve. The Kayelekera uranium deposit occurs in similar rocks 300km to the south-west in Malawi. These deposits though not in Uranex’s tenements provide the target exploration model for similar prospective Karoo sediments within Uranex’s extensive land holding.
Exploration to December 2006
A review of late seventies radiometric data identified several radiometric response areas within the tenement package. Due to the coarse grid spacing the Company commissioned a state of the art airborne survey over an area of 3,000km2. A total of 12,165 line kilometres were flown at nominal spacing of 200m and 400m intervals and was completed in June 2006.
The 256 channel spectral data was sent to independent specialists for processing. A total of 24 uranium anomalies were identified. These anomalies occur in clusters within trends that extend up to 16 kilometres in length and up to 2 kilometres wide.
The Company undertook a short reconnaissance survey in late October to field check some of the anomalies.
Assay results from this survey show strong uranium values in both soil and auger drill samples. Peak results were returned from anomaly 16 which forms part of the 16km long by 2km wide trend of radiometric anomalies.
Click here to view Mkuju radiometrics
Results from auger hole MP0007, located at E229742, N8844750 are as follows;
| From (m) | To (m) | Interval (m) | U3O8 ppm | U3O8 kg/t |
| 0 | 1.4 | 1.4 | 1810 | 1.810 |
| Includes: | ||||
| 0 | 0.3 | 0.3 | 1945 | 1.945 |
| 0.3 | 0.6 | 0.3 | 1370 | 1.370 |
| 0.6 | 0.9 | 0.3 | 1889 | 1.889 |
| 0.9 | 1.2 | 0.3 | 2177 | 2.177 |
|
1.2 |
1.4 | 0.2 | 1065 | 1.065 |
Auger drill hole MP0007 averaged 1.81kg/t (1810ppm) U3O8 from surface to 1.4m depth finishing in mineralisation. An adjacent soil sample 5m away, showing abundant visible secondary uranium mineralisation associated with sandstone fragments, returned 16.4kg/t (16413ppm; 1.64%) U3O8.
These results demonstrate the potential for Karoo sandstone hosted uranium mineralisation within the company’s tenements. A robust exploration program is being formulated for the 2007 field season with the high grade surface mineralisation at anomaly 16 a priority target.
Work Program Planned for 2007
The high grade surface mineralisation at anomaly 16 provides a priority target for follow-up drilling. The Company plans to conduct about 3,000 metres of reverse circulation drilling at anomaly 16 and other targets within the 16 kilometre long radiometric trend. Grid based scintillometer surveys and soil sampling will provide further targets for trenching and follow-up drilling.
The Company is also planning to conduct a 256 channel spectral radiometric survey over the remaining 5,000km2 of its land holding at Mkuju.
