THE DRILL SERGEANT: Discovery Metals (ASX: DML) has encountered copper-silver mineralisation at the Aphrodite prospect, situated within the company’s 100 per cent-owned prospecting licences in the Kalahari Copperbelt , 170 kilometres south west of its Boseto copper project in Botswana.
The company recently completed a 14 hole drill program in the Aphrodite area, comprising 11 Reverse Circulation holes and three diamond core holes.
Kalahari Copperbelt exploration targets. Source: Company announcement
The initial target for the drilling program was a copper-in-soil anomalism, along a contact between two formations (the D’kar Formation and the Ngwako Pan Formation), around the Aphrodite Anticline.
Discovery considers this contact is the host of copper-silver mineralisation at the Boseto copper project.
One of the reported drill holes targeted copper-in-soil anomalism located approximately 200 metres south of the contact between the D’kar Formation and Ngwako Pan Formation.
This hole returned 19 metres at 1 per cent copper and 13 grams per tonne silver, including 4 metres at 2.6 per cent copper and 40 grams per tonne silver.
Discovery Metals explained the copper-silver mineralistion encountered by this hole is in a different geological setting from the Boseto style mineralisation found on the D’kar-Ngwako contact.
“Other holes drilled at Aphrodite targeted the base of the D’kar Formation, which is the main host to the mineralisation at Boseto,” Discovery Metals said in its ASX announcement.
“These have identified weak, narrow copper-silver mineralisation in host rocks that have similar lithologies and structures to those hosting the Boseto mineralisation.
“Although these drill holes have not intersected significant grades of copper-silver mineralisation, they do demonstrate that there is potential for the discovery of more Boseto style copper-silver mineralisation in the SW Kalahari Zone.”
Discovery has exploration planned to be undertaken during the first quarter of 2013 to focus on mapping the Aphrodite area.
Other work will involve geochemical soil sampling to identify the strike length and width of the shear zone prior to the commencement of further drilling, which is planned for the second quarter of 2013.
Elsewhere within the SW Kalahari Zone, exploration is planned to continue to target both the base of the D’kar Formation and also to identify and test additional shear zones the company considers may be mineralised.