Airborne EM Schedule Confirmed and First Drill Targets Generated at Grootfontein Gold and Nickel-Copper Project
Press Release
Namibia Critical Metals Inc.
Airborne EM Schedule Confirmed and First Drill Targets
Generated at Grootfontein Gold and Nickel-Copper Project
Halifax, Nova Scotia March 26 , 2021 – Namibia Critical Metals Inc. (“Namibia Critical
Metals” or the “Company” or “NMI” ) (TSXV:N MI) is pleased to provide an update on
exploration activities on its 95% owned Grootfontein Project.
The Grootfontein Project consists of two large Exclusive Prospecting Licences with a total area
of 163,784 ha (1 ,638 km 2) and covers ground prospective for orogenic gold, magmatic
copper-nickel-PGE and sediment-hosted lead-zinc-silver-copper-vanadium mineralisation. As
previously announced (Company press release March 26, 2021) a number of geophysical
surveys have now been completed and the large -scale airborne EM survey will commence
May 6 . Initial geophysical results have already generated several drill targets . A dditional
targets will be tested upon completion of the airborne survey.
Highlights of the first results and activities include:
• Ultra-high resolution UAV-borne magnetic surveys generated several drill targets over
fully covered Grootfontein Shear Zone and Waterberg Fault
• First ground IP survey delineated chargeability and resistivity trends along the first
order Grootfontein Shear Zone and sub-parallel second order structures within the
Grootfontein Mafic Complex
• Large-scale helicopter-borne EM survey by SkyTEM to commence on 6 May 2021
• Drilling campaign for multiple priority targets planned starting end of May 2021
Darrin Campbell, President stated “ We continue to be encouraged by early results and are
excited to move our Grootfontein gold and base metal project to the next stage of exploration.
Our technical team in Namibia has done a great job in early-stage analysis of this large under-
explored region and we look forward to getting drill ready as soon as possible.”
The Company’s Exclusive Prospecting Licenses (“EPLs”) are located in the Central Namibian
Gold Belt which hosts a number of significant orogenic gold deposits including the Otjikoto
Gold Mine of B2Gold.
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Cu-Ni-PGE Prospectivity of the Grootfontein Project
The Grootfontein area is one of the very few under-explored areas with geologically complex
and prospective ground in Namibia. Historical exploration was limited and challenged due to
the complete cover of the area with calcrete and Kalahari sands. Magnetic survey data
delineated the covered the Meso-Proterozoic Grootfontein Mafic Complex (GMC) over an area
of about 400 km2.
Following geological reconnaissance by Anglo in the 1970s, the only drill program in the GMC
by Gold Fields was in 1988 and was limited to 6 diamond boreholes along two lines. The drill
logs describe layered and often strongly sheared mafic to ultramafic rocks as gabbroids,
norites and pyroxenites with up to 1.1% chromium.
Geophysical and geochemical studies by the Geological Survey of Namibia and international
partner organisations revealed a depletion of the mafic silicate magma by copper and nickel
which points to a likely earlier fractionation of a Cu-Ni-rich sulphide melt. This underlines the
GMC’s prospectivity for Voisey’s Bay type Cu -Ni-PGE mineralisation which form part of the
current exploration program.
Figure 1: Grootfontein Project: Areas with completed and planned geophysical surveys over key structures of the Grootfontein
Shear Zone (GSZ) and Waterberg Fault.
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Au Prospectivity on the Grootfontein Project
Previous exploration activities by Namibia Critical Metals included geochemical soil surveys
with a total of > 8 ,000 soil samples which delineated the high priority Highland Gold Target
(Figure 1) and several other gold and gold pathfinder anomalies in the periphery and contact
zone of the Grootfontein Mafic Complex with Meso- and Neoproterozoic metasediments (Press
Release 16 December 2020 and March 26, 2021).
The company’s current structural interpretation of the Grootfontein project is based on the
200 m line spacing magnetic survey data produced by the Geological Survey of Namibia. The
structural setting is dominated by the major first order structure of the Grootfontein Shear
Zone which 80 km westwards aligns with (and controls?) the Otjikoto orogenic gold deposit
of B2Gold (2.8 Moz Au).
Second order structures related to the Grootfontein Shear Zone form the key targets for gold
exploration. With gold in soil anomalies related to second order shear structures in the contact
and within the GMC, the company pioneers targeting of mafic/ultram afic rocks for gold in
Namibia. The high-resolution heli-borne EM and magnetic data from the SkyTEM system will
refine drill targeting for gold.
First results from UAV Magnetic surveys
UAS Flightec completed two drone -borne magnetic surveys covering more than 1500 line
kilometers and mapping a total area of 7,405 ha over two survey areas (Figure 1). The ultra-
high resolution magnetic survey comprised of a Laser pumped Caesium Vapor Sensor
(Geometrics MagArrow) suspended below a UAV ( DJI M600 Pro) travelling at < 10m/s
effectively generating a measurement every 1 cm . The high sample density allowed for
excellent noise removal. The survey data reveal highly detailed magnetic anomalies which are
assumed to be partly related to pyrrhotite mineralisation.
Figure 2: UAV-borne “mag arrow” over the zero outcrop Grootfontein project area.
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The data of Area 1 covers a 4 km section of the regional-scale, multiply reactivated, deep -
tapping structure of the Waterberg Fault Zone. Four profiles across the Waterberg Fault were
modelled by Earthmaps Consulting . The modelling methods include both magnetic forward
modelling (manual, user controlled modelling) as well as magnetic inversion modelling
(software-controlled, automatic root mean square modelling). The resulting model shows the
Waterberg Fault Zone to be likely associated with an intrusive dyke-sill-complex of gabbroic-
noritic composition. Four boreholes with a total of 800 m are planned to test both the
Waterberg Fault Zone and the intrusives for precious and base metal mineralisation.
Figure 3: Results of modeling of magnetic data of profile 4 over the Waterberg Fault and traces of planned boreholes
Area 2 targeted the eastern bend of the Grootfontein Shear Zone (GSZ). While completion of
data modelling is pending, several high priority drill targets are planned in the splay zone of
the GSZ over remanent magnetic anomalies likely related to pyrrhotite.
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Figure 4: RTP-1VD of the drone mag data of the Eastern Bend Target of the Grootfontein Shear Zone
IP Surveys
A first area of ground Induced Polarization (Gradient Array IP) was completed over the central
Rothof gold target by GSG Namibia. The first data set shows generally only low to moderate
chargeability and conductivity anomalies which however clearly mark the Grootfontein Shear
Zone and second order structures within th e mafic rocks of the Grootfontein Mafic Complex.
Direct correlation of the geophysical trends with the wide spaced gold -in-soils anomaly is
unclear but exhibits a sub-parallel trend. Drill targeting in this area will require closer spaced
geochemical sampling.
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Figure 5: Resistivity image of the Rothof target: Low resistivity areas (in red and purple) clearly mark the Grootfontein Shear Zone
and subparallel second order structures
SkyTEM Survey
As previously announced (Company press release March 26, 2021) a n airborne EM survey
with a total of more than 2,000 line kilometers at 200 m line spacing is planned over the bulk
of the GMC on the Company’s EPLs and will cover the key structural corridors of the
Grootfontein project area prospective for gold and base metal mineralisation (*Figure 1). The
survey will cover the priority gold target at Highlands and also the prospective ground for
sediment-hosted lead -zinc-silver-copper-vanadium mineralisation in the Berg Aukas area.
SkyTEM Surveys ApS Denmark has been contracted for the survey with its SkyTEM312 FAST
system.
The survey is planned to commence on 6 May 2021 for a duration of 8 days. Based on final
data interpretation by the end of May, drill targeting is planned to be c ompleted by the first
week of June, in parallel with drill rig mobilisation.
About Namibia Critical Metals Inc.
Namibia Critical Metals Inc. holds a diversified portfolio of exploration and advanced stage
projects in the country of Namibia focused on the d evelopment of sustainable and ethical
sources of metals for the battery, electric vehicle and associated industries. The two advanced
stage projects in the portfolio are Lofdal and Epembe. The Company also holds significant
land positions in areas favourable for gold mineralization.
Heavy Rare Earths: The Lofdal Heavy Rare Earth Project is the Company’s most
advanced project having completed a Preliminary Economic Assessment in 2014 and full
Environmental Clearance for a first mining area in 2016. The Company has received Notice
of Preparedness to Grant the Application for a Mining Licence for Lofdal from the Ministry of
Mines and Energy. The Company has lodged its acceptance of the mining licence and awaits
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finalization of the process from the Ministry. The project is developed in joint venture with
Japan Oil, Gas and Metals National Corporation (“JOGMEC”) who are funding the current
CD$10,000,000 drilling and metallurgical program with the objective of doubling the resource
size and optimization of the process flow sheet.
Gold: The Company’s Exclusive Prospecting Licenses (“EPLs”) prospective for gold are located
in the Central Namibian Gold Belt which hosts a number of significant orogenic gold deposits
including the Navachab Gold Mine, the Otjikoto Gold Mine and more recently the discovery of
the Twin Hills deposit. At the Erongo Gold Project, stratigraphic equivalents to the meta-
sediments hosting the recent Osino gold discovery at Twin Hills have been identified and soil
surveys are progressing over this highly prospective are a. The Grootfontein Base Metal
and Gold Project has potential for magmatic copper-nickel mineralization, Mississippi Valley-
type zinc-lead-vanadium mineralization and Otjikoto -style gold mineralization. Detailed
interpretation of geophysical data and regional geochemical soil sampling have identified first
gold targets.
Tantalum-Niobium: The Epembe Tantalum -Niobium-Uranium Project is at an
advanced stage with a well-defined, 10 km long carbonatite dyke that has been delineated by
detailed mapping and radiometric surveys with over 11,000 meters of drilling. Preliminary
mineralogical and metallurgical studies including sorting tests (XRT), indicate the potential for
significant physical upgrading. Further work will be undertaken to advance the project to a
preliminary economic assessment stage.
Copper-Cobalt: The Kunene Co pper-Cobalt Project comprises a very large area of
favorable stratigraphy along strike of the Opuwo cobalt-copper-zinc deposit. Secondary
copper mineralization over a wide area points to preliminary evidence of a regional -scale
hydrothermal system. Exploration targets on EPLs held in the Kunene project comprise direct
extensions of the cobalt-copper mineralization to the west, sediment-hosted copper, orogenic
copper, and stratabound manganese and zinc-lead mineralization.
The common shares of Namibia Critical Metals Inc. trade on the TSX Venture Exchange under
the symbol “NMI”.
Donald M. Burton, P.Geo. is the Company’s Qualified Person and has reviewed and approved
the scientific and technical information in this press release.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term
is defined in the policies of the TSX Venture Exchange) accepts responsibility for the
adequacy or accuracy of this release.
For more information please contact -
Namibia Critical Metals Inc.
Darrin Campbell, President
Tel: +01 (902) 835-8760
Fax: +01 (902) 835-8761
Email: [email protected]
Web site: www.NamibiaCriticalMetals.com
The foregoing information may contain forward-looking information relating to the future performance of Namibia Critical Metals Inc. forward-
looking information, specifically, that concerning future performance, is subject to certain risks and uncertainties, and actual results may differ
materially. These risks and uncertainties are detailed from time to time in the Company's filings with the appropriate securities commissions.