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Bahi Project Area – Central Tanzania
Uranex 100%
Background
The Bahi Project comprises 4 tenements (3 granted and 1 application) covering an area of 4,700km2. The project area is linked by road and rail to the national capital of Dodoma located 70kms to the east.
Uranex’s Bahi Project area incorporates an extensive closed and drainage system that has developed over weathered uranium rich granites. This drainage system captures all soluble uranium leached from the underlying rocks and provides transport to suitable trap sites along the drainages and ultimately into the Bahi salt lake
Click here to view Bahi Project Area
Uranium was first reported from the area in 1954 when drilling for salt at Lake Bahi recorded a 0.15m interval assaying 2.30kg/t U3O8 associated with strontium carbonate. Historic reconnaissance of the country wide radiometric survey in the seventies located uranium mineralisation in the form of carnotite associated with drainage systems leading into the lake.
Uranex’s initial work program focussed largely on a system of channels and playa lakes that lead into the central ephemeral Bahi salt lake. Two of the several playa lakes in this system were selected for initial broad spaced reconnaissance testing.
These lakes (Anomaly ‘A’ and ‘C’) occur 45 and 30kms north-west of Lake Bahi. A course grid of pits, trenches auger and RAB drilling established an extensive, shallow sheet of anomalous uranium mineralisation greater than 100ppm U3O8 over a combined area of 20km2.
Click here to view Anomaly ‘A’ and ‘C’
Exploration to December 2006
Follow-up trenching and pitting has discovered a new zone of uranium mineralisation within the broader Anomaly ‘C’ area 30 kilometres north of the Bahi Salt Lake. This zone of mineralisation has been named the C1 prospect.
Abundant secondary uranium mineralisation has been exposed in hand dug pits and trenches between 1 to 3m and widths of uranium mineralisation in what is interpreted as a near surface sheet of mineralisation.
Click here to view the C1 prospect
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Vertical continuous channel samples taken from a north-south trending series of pits dug at 65m intervals and an adjacent trench returned the following composited assay results:
Summary pit and trench channel assays:
| Pit/Trench No | East | North | From (m) | To (m) | Interval (m) | U3O8 ppm* | U3O8kg/t |
| BPIT202 | 707650 | 9367958 | surface | 2.0 | 2.0 | 1351 | 1.351 |
| includes | 0.3 | 0.7 | 0.4 | 2376 | 2.376 | ||
| BPIT203 | 707669 | 9368014 | surface | 1.5 | 1.5 | 1094 | 1.094 |
| includes | 0.5 | 1.0 | 0.5 | 2227 | 2.227 | ||
| BPIT204 | 707681 | 9368084 | surface | 1.6 | 1.6 | 1394 | 1.394 |
| BTR2003 | 707442 | 9368262 | 0.4 | 3.0 | 2.6 | 823 | 0.823 |
| includes |
0.7 |
2.0 | 1.3 | 1186 | 1.186 |
*Intervals calculated using a 300ppm U3O8 cut-off.
Pit BPIT201 closes off the high grade 150m to the south but the zone remains open to the east and northeast. Trench BTR003, which assayed 1.86kg/t U3O8 over a vertical interval of 1.3m, occurs 350m to the north-west of the pit traverse. The mineralisation is hosted by lake sediments comprising calcareous and gypsum bearing clays and clayey sands/gravel. The historic radiometric data indicates that the zone could extend over an area of 2 to 3 square kilometres.
The new high grade zone of surface uranium mineralisation lends itself to rapid delineation by detailed shallow pitting, trenching and auger drilling. The discovery of greater than 1kg/t U3O8 at the surface in soft sediment with negligible stripping ratio adjacent to a railway line provides an outstanding exploration opportunity and an accelerated work program is being formulated. Field work on this exciting uranium discovery is scheduled to re-commence in May at the start of the Tanzanian dry season.
Work Program Planned for 2007
The discovery of high grade uranium in a calcrete type setting at the CI Prospect provides an immediate focus for the 2007 field season due to commence in early May. A program has been defined to further delineate and quantify the deposit.
There are several playa lakes and channels in the drainage system that have not yet been investigated. All of these have potential for uranium mineralisation similar to that discovered at the CI Prospect. Company plans to fly a close spaced radiometric survey over all of its Bahi land holdings in order to assist the planning and testing of the multiple targets within the drainage network.
