By Hilary Mare
NAMIBIA Critical Metals (NCM) has identified multiple prospective targets at its Kunene cobalt/copper project following the completion of an airborne electromagnetic (EM) survey covering 4200 line kilometers.
The survey data shows clear conductive trends associated with favourable sedimentary horizons and structures known to be associated with cobalt/copper mineralisation.
Of particular interest is the prolific number of responses along a 20km long segment of the interpreted extension of the dolomite ore formation (DOF) and along a 15 km long segment of the Okanihova lineament.
The DOF hosts the Opuwo cobalt/copper/zinc deposit of Celsius Resources, and historic drilling by First Quantum Minerals intersected anomalous copper and cobalt along the Okanihova lineament.
Two more isolated targets were identified at Okanihova East and Olulilwa Southwest.
The survey results enable the company to pinpoint drill targets on the ground.
“The SkyTEM survey has exceeded our expectations in terms of the prolific number of targets it has identified and the detail in which it has mapped the favourable sedimentary formations and structures. This is a very preliminary assessment of an invaluable database that immediately provides us with the ability to pinpoint drill targets on the ground.
“We will undertake a systematic reconnaissance drilling approach, utilising one diamond drill and one reverse circulation drill rig to test multiple targets to accelerate the opportunity for deposit discoveries. We are looking at a drill start up before the end of September. Geophysical interpretations will be refined upon delivery of final products from SkyTEM and this will include a more comprehensive study for deep conductors,” said Namibia Critical Metals President, Don Burton.
The Kunene project area covers over 720 km2 and is characterised by widespread base metal and associated mineralisation occurring in discrete sedimentary horizons such as the DOF where Co-Cu is associated with disseminations and veinlets of sulphide minerals, as well as orogenic copper, and stratabound Zn-Pb mineralisation.
The stratabound DOF hosts the Opuwo Co-Cu-Zn deposit which occurs on the contiguous ground held by Celsius Resources where it has been traced for over 35 kilometers. This stratigraphic package is interpreted to continue across the Kunene Project area and given the nature of the mineralization and host lithologies (black shales with graphitic members) it was decided to fly the area with EM.
The objectives of the airborne EM survey were to refine geological and structural mapping under the largely covered areas, to delineate conductive sedimentary horizons, to isolate conductive bodies that may be indicative of near surface mineral deposits, and to detect sulphide deposits and stockworks at depth.
Previous work had identified three large target areas primarily associated with Co-Cu anomalies identified from regional soil sample surveys which were confirmed by detailed soil sampling. These areas were referred to as the DOF Extension, the Western Targets and the Okanihova Targets. A primary objective of the airborne EM survey was to delineate specific targets within these regional geochemical anomalies for drilling.
Celsius has reported that the Opuwo deposit hosts a maiden JORC compliant resource of 72.0 million tonnes at a grade of 0.11 percent cobalt, 0.42 percent copper and 0.41 percent zinc in the Indicated category, and a further 40.5 million tonnes at a grade of 0.12 percent cobalt, 0.41 percent copper and 0.46 percent zinc in the Inferred category. It is noted that the mineralisation on the Celsius property may not be indicative of mineralisation that may be found on the Kunene project area held by Namibia Rare Earths.
Namibia Critical Metals holds a diversified portfolio of exploration and advanced stage projects in the country of Namibia focused on the development of sustainable and ethical sources of metals for the battery, electric vehicle and associated industries. The common shares of Namibia Critical Metals Inc. trade on the TSX Venture Exchange under the symbol “NMI”.
Confidente. Lifting the Lid. Copyright © 2015