Lekobolo Projekt
Infill Drilling Confirms Uranium Potential at Lekobolo Projekt
14.07.2010 | Deskman: Marion Henig
Following a successful reconnaissance maiden drill programme at Lekobolo Impact has now completed a follow-up infill programme of reverse circulation (RC) drilling. A total of 2,162 metres in 61 holes have been drilled.
Botswana, Africa – Impact’s Prospecting Licences in Botswana cover 350 km of the strike extensions of rocks that host many significant uranium deposits throughout southern Africa, including Letlhakane. A drilling has confirmed that uranium mineralisation extends over a broad area, measuring about 1,800 m by 700 m that is open to the north west and that is hosted within sedimentary rocks of the Karoo Supergroup, specifically within a broad palaeochannel, similar to that at the adjacent large Letlhakane deposit owned by A-Cap Resources Ltd.
All of the holes have been analysed by down-hole gamma probe and the results from the first 25 holes that have been processed are listed in Table 1 at the end of this report. Processing of the remaining 36 holes and interpretation of the data is in progress and will be reported when complete. Carnotite mineralisation, a uranium mineral common to many uranium deposits, is visible in several holes.
The maiden drill programme at the Lekobolo Prospect comprised 59 holes for a total of 2,294 metres in holes drilled at intervals of between 400 m and 1,000 metres. It has defined significant near-surface uranium mineralisation, much of which occurs at modest depths of up to 25 metres. The infill drill programme has reduced the drill hole spacings down to 250 m by 200 m, and locally down to 200 m by 100 metres.
Mineralisation occurs as a broad flat-lying zone from surface down to about 40 m depth within altered and weathered carbonaceous mudstone, sandstone and conglomerate of the Karoo Supergroup. Interpretation of geological and airborne magnetic data indicates that the mineralisation occurs within an east-west trending, fault-controlled Karoo-aged palaeochannel or sedimentary subbasin trending to the west and north west.
Further Exploration at Lekobolo
A programme of five hollow stem auger and diamond drill holes is in progress at selected sites to gather more detailed information about the geology and mineralisation, and is expected to be completed shortly. This core will also be used to provide check assays for the down-hole gamma probe.
Exploration Progress at other Botswana Uranium Prospects
The maiden reconnaissance RC drill programme at Kodibeleng has been completed, with about 93 holes drilled for 4178 m at three separate Prospects. Impact will report on this work as soon as possible.
The proposed programme of aircore drilling of up to 10,000 m at the Sua Prospect to test numerous uranium-in-soil anomalies in the playa lake is now scheduled to start in early August, owing to contractor delays. It is likely to be completed in September.
Impact has commenced a programme of regional systematic mapping and field checking in order to advance its knowledge and understanding of the other areas considered to be prospective within its Prospecting Licences. This work will help define new areas for further work that will lead to drill testing, and is an ongoing effort.
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