Business
Update on Exploration Activities in Botswana
Update on Exploration Activities in Botswana.
About this update from Botswana Minerals Plc
[{"type":"text","content":"\n \nRNS Number : 5226J Botswana Diamonds PLC 01 July 2011 \n \n\nBotswana Diamonds PLC\n(\"Botswana Diamonds\")\n \n \nUpdate on Exploration Activities in Botswana\n \nThe focus of our current exploration programme in Botswana is to refine the grade per ton and value per carat of diamonds discovered by prior work in kimberlites AK9, AK8 and BK5.\n \nDuring a review of earlier work on AK9, prior to beginning the bulk sampling, it was discovered from an analysis of micro diamonds that a potential high grade kimberlite could exist under the overburden and basalt layer. The historic overall grade of 2.5 to 3.5 cpht could be low due to basalt dilution. The 3 hectare AK9 kimberlite has significant overburden and high basalt dilution to a depth of at least 90 metres. The micro diamond analysis of the undiluted kimberlite indicates the possibility of grades of between 80 - 160 cpht. This transforms the potential of AK9. We are preparing to drill one or more core holes to a depth of 300 metres to test the kimberlite. \n \nOn AK8 the first pass processing of the bulk sample is complete. The recovered stones are larger than anticipated which should result in higher value per carat but the grade is below expectations. The tailings material will be recrushed for final recovery. The anticipated final grade is now expected to be 5 cpht or lower. \n \nThe processing of the historic stockpile material on BK5 produced no diamonds during first pass processing. An additional bulk sample of 1,000 tons was excavated and is now being processed. \n \nA full report on both AK8 and BK5 kimberlites can be expected by mid August. \n \nApplication was made on 16 March 2011 to the Geological Survey of Botswana to extend the life of two licences PL04/2002 which contains AK8, AK9 and BK5 and PL07/2004, both of which were due to expire on June 30th. The application was well received. We are informed that the paperwork granting the extension is being processed and will be issued in due course. \n \nA thorough review of available ground in Botswana has led to application being made for a number of additional areas. \n \nJohn Teeling, Chairman, commented:\n \n\"Our ongoing operations in Botswana are producing interesting results. On the very positive side a review of micro-diamond work done on the AK9 k...