Damsfontein-Bloemfontein Prospect
The prospecting rights on this area are currently under review with the DME.
Background
The Damsfontein-Bloemfontein prospect is generally an area of low relief with isolated ridges and small hills that rise to a maximum of 110m from the elevation of the river bed. The rivers in this area only flow during periods of heavy rainfall. Towards the southern side of the prospect two dams have been constructed in the river bed.
Geology
The Damsfontein-Bloemfontein Prospect is underlain by approximately 59.4 km2 of the target sandstone (the Poortjie Member), which is known to be mineralised to potentially economic grades on the prospect itself. As described in Section 4.3 of the SRK Report, the Poortjie Member outcrops on the prospect. This sandstone body is essentially flat-lying and has a maximum thickness of 33 m. The sandstone sheet trends north-northeast for at least 15 km and has an average width of 5 km.
The mineralised zones are lenticular in shape and occur at various horizons in the sandstone unit, from directly above the base to 5 m above the base. They vary in thickness from 16 cm to 1.5 m and generally occur in the lower third of the sandstone body. Mineralisation is hosted by grey, non-calcareous, fine-grained and subordinate mudstone-pebble conglomerate.
The higher uranium grades tend to coincide with the thicker mineralised zone and do not exceed 2,000 ppm U over the thickness of mineralised zones. Individual samples can be as high as 4,000 ppm U. Molybdenum grade is generally higher than uranium, with individual samples as high as 7,000 ppm Mo.
Mineralisation
Historic estimates of mineralisation showed an in-situ grade of U3O8 from 1,170 to 1,600 ppm U and a Mo grade of 1,000 to 1,060 ppm Mo. The above historic estimates of uranium and molybdenum values expressed as ppm, are extracted from the SRK Report and do not conform with any of the modern internationally accepted standards for reporting mineral resources and are included in the SRK Report only as descriptions of the style and quality of mineralisation evident on Brinkley’s U- Mo Prospects. SRK does not support or otherwise credit the numbers quoted and has not attributed any quantities to Brinkley as an established mineral resource. Accordingly, no resource estimate either indicated or inferred has yet been prepared for this prospect.
