Within the Boseto area, exploration is focused on drilling sufficient holes to allow for the estimation of an Inferred Mineral Resources estimate in areas of known mineralisation in the Mango Area (NE Mango and SW Mango), locating the target horizon beneath the Kalahari Sands at Maia and Erebus and completing initial drilling to test the target horizon at Selene. New and updated Mineral Resources will continue to be announced as they are available. Please refer to the Mineral Resources and Ore Reserves page for the latest information.
Assays from the drill program completed at NE Mango 1 were received and reported in Q2 2012. Geological modelling of the deposit has been completed and an Inferred Mineral Resources estimate is expected to be completed in Q3 2012.
Diamond core drilling was completed at NE Mango 2. Here, initial results indicated significant copper-silver mineralisation over a strike-length of approximately four kilometres. Drilling in the June quarter was intended to supply sufficient information for an Inferred Mineral Resource to be estimated.
A total of 45 diamond core holes were drilled in this program, for 6,580 metres, with 31 holes completed in the June quarter for 4,882 metres.
Initial assay results from 13 holes have confirmed the continuity of grade and thickness in the central portion of the deposit. Assays from the remaining holes are expected in the next quarter and an Inferred Mineral Resources estimate is expected to follow shortly after.
Diamond drilling was completed at SW Mango in Q2 2012. The current drill programme was intended to determine the continuity of the copper-silver mineralisation and allow the calculation of an Inferred Mineral Resources estimate, if it is warranted. Two holes were drilled this quarter to complete the program, which consisted of 40 holes for 4,030 metres drilled.
A shallow RC drill programme is being conducted in the Maia area. The aim of this programme is to determine the position of the target horizon beneath a cover of Kalahari Sands and calcrete; determine the depth of the cover and; provide geochemical information to plan further drilling. Eighty holes have been drilled for 2,881 metres. The depth of cover appears to increase from the South-West to North-East, to a maximum of over 60 metres. Future work in this area will depend on the results of this drilling programme.
Erebus is north-west of the NE Mango prospect, in an area of sand-dunes and Kalahari Sands cover up to 30 metres deep. A shallow RC drill program was conducted in the Erebus area in April and May. The aim of the program was to locate the position of the target horizon beneath the Kalahari Sands cover and provide geochemical data to assist planning for a further drilling. A total of 115 holes were drilled on 18 lines, 1.6 kilometres apart for 3,838 metres drilled. The program successfully located the target horizon on all lines, with two zones of anomalous copper assays (>250 ppm Cu) reported. These will be drill-tested later in 2012.
The Selene diamond core drill program was completed in May 2012. A total of nine holes were drilled for 900 metres. With the RC drilling program completed in the March quarter, the intention of the program was to target the prospective horizon with holes drilled at a spacing of 1,600 metres. Assay results are expected soon, however geological logging of the holes indicates that all holes intersected copper mineralisation.
Final assay results from the Zeta NE Inferred Mineral Resources drill program were received. Geological modelling of the deposit was completed and an Inferred Mineral Resources estimate is expected to be completed in Q3 of 2012.