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The Tubas area includes the Tubas Red Sand and Tubas Calcrete deposits and is located within the extensive, mainly east-west trending,
Uranium mineralisation in the Tubas Calcrete deposit occurs in association with calcium carbonate precipitations (calcrete) in palaeovalley-fill sediments. In places, the calcrete is overlain by transported reddish aeolian sand, which also shows carnotite uranium mineralisation and is referred to as the Tubas Red Sand deposit.
The first phase of the RC program commenced
Importantly, 42 (60%) of the 70 holes in this scouting program returned uranium mineralisation greater than 100ppm eU3O8 over 1m, with 30% showing uranium mineralisation greater than 200ppm eU3O8 over 1m. The equivalent uranium values (eU3O8) are based on down-hole radiometric gamma logging carried out by qualified operators using a fully calibrated AusLog gamma logging system.
The GT intervals of the latest drill holes largely confirm the historical drill data and grade continuity within the Tubas deposits and have, in part, extended the mineralisation along the peripheral areas. Results further suggest that the mineralisation located in the eastern part of the Tubas area connects to the Tumas Central mineralisation, highlighting the possibility of further improvement in the resource base from this 5km long intermediate area.
The near-surface uranium mineralisation identified occurs as a single strata-bound layer from near- surface up to a depth of 10m and includes both the Tubas Red Sand and Tubas Calcrete deposits. Some isolated pockets of lower grade uranium mineralisation were also intersected within the area of the Tubas Calcrete deposit between 20 and 40m depth, signifying that potential also exists in this horizon for resource expansion.
The palaeochannels occurring west of
Contact:
Tel: +61 8 9286 6999
Email: john.borshoff@deepyellow.com.au
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