In Focus
Contractor appointed for resource upgrade drilling at Unicorn
16 January 2012
CONTRACTOR APPOINTED FOR RESOURCE UPGRADE DRILLING AT UNICORN
• Appointment of drilling contractor Techdrill Services
• Resource upgrade drilling program Q1 2012
• Resource update planned Q3 2012
Dart Mining NL is pleased to have secured drilling contractor Techdrill Services Pty Ltd of Orange (NSW) to carry out a resource upgrade drilling program at the companys Unicorn Mo - Cu - Ag deposit. Drilling is planned to close the spacing between drill holes within the upper 250m of the deposit and allow an upgrade of the current indicated and inferred resource classification into the measured, indicated and inferred category. As part of this program the southern margin of the mineralisation (which would form the high wall of any future open pit) will be tested to determine the optimal pit size.
Work is planned to commence in late February 2012 following full government approvals and drill access track preparation.
As part of the resource upgrade drilling the southern mineralised breccia, sediments and rhyolite surrounding the Unicorn porphyry will be tested. Only limited testing of these zones has previously been carried out due to drill access restrictions along the main ridge line. The Maiden Resource (Indicated and Inferred) of 105 Mt @ 0.07% MoEq (see ASX release 11Oct 2011) does not include any contribution from the mineralisation surrounding the porphyry. With approval to construct drill access tracks Dart can better test the near surface potential of the deposit and is optimistic the resource base can be increased.
UNICORN MORGAN MINERALISATION CORRIDOR
Dart is also following up the recommendations made following a full review of the regional geochemical survey of the northern half of the tenements. Initial focus will be to follow up anomalies along the Unicorn - Morgan mineralisation corridor highlighted as a key exploration target to locate additional Unicorn style porphyry targets.
Porphyry deposits worldwide often appear as clusters where multiple deposits occur in close proximity to one another in districts - examples include the Endeavour deposits at Northparkes (Goonumbla - NSW) and the Cadia / Ridgeway deposits (Orange - NSW).
Dart has already shown the Morgan project (some 7 km from Unicorn) is a large Mo - Ag system with limited drilling already showing significant molybdenum - silver anomalism associated with rhyolitic porphyry dykes of similar rock type to Unicorn above what is interpreted to be a buried porphyry system.
This follow up work will consist of infill stream sediment sampling and targeted soil sampling traverses across individual anomalies. This work will be ongoing during 2012.