The Vittangi Project is located within exploration licence areas held by Talga, namely the Nunasvaara nr 2 and Vittangi nr 2 licences. Licences are owned by Talga through the Company’s Swedish subsidiary Talga AB.
The Vittangi nr 6 prospect is located on licence Vittangi nr 6 owned 100% by the Company’s Swedish subsidiary, Talga AB.
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Summary:
The mineralisation at Nunasvaara and Niska comprises two sub-vertical lithological units of very fine grained, dark grey to black graphite containing ~10%Cg to 50%Cg, ranging in thickness from approximately three metres to 80m. The graphitic units are regionally extensive over approximately five-kilometre strike length and are interpreted to have originated as early accumulation of organic compounds occupying a large and flat-lying, freshwater sedimentary basin of early Proterozoic age (1.8 billion years, Ga).
Subsequent deformation, possibly related to domal and/or plunging folded intrusive volcanics have metamorphosed and rotated the graphite units to their current sub-vertical position as identified by exploration drilling. Lithological units within the Project area are variably folded and faulted, dipping steeply (65-90°) predominantly to the northwest but also the southeast.
The basin is characterised as a sequence of sediments, volcaniclastics, and intrusive rocks. The hangingwall is comprised of mafic volcaniclastics and tuffaceous units and the footwall to the mineralisation is a mafic intrusive (dolerite-gabbro).
The majority of the graphite at Vittangi is very fine grained, highly crystalline and very high grade. Pyrite, pyrrhotite and trace chalcopyrite accompany the graphite mineralisation.
Vittangi nr 6 Drilling
In general, the graphite mineralisation at the Vittangi nr 6 prospect is not yet well understood due to only one profile of scout drilling being undertaken, however, mineralisation to date is a series of subvertical ~10-40m wide units of very fine grained, dark-grey graphite schist containing 0.5-14% graphitic carbon. The host rocks comprise highly metamorphosed mafic volcanics, metasediments and leucocratic to mafic intrusive units.
The graphite mineralisation on the drilled section appears to be dipping to the southeast. Visually it appears to be fine grained, and of variable grade with higher grade lenses. Further characteristics such as crystallinity are not yet known. The deposit is visually similar to the Nunasvaara-Niska deposits at Vittangi, but of lower average grade on the section tested.
Dimensions
The graphite mineralisation of the resources at Vittangi comprises two sub-vertical, continuous lithological units ranging in thickness from approximately three metres to 80m.
The main graphitic bearing strata has been interpreted across six main deposit areas with a total strike length of approximately five kilometres. The deposits have also been found to have two orientations, with a distinct change in orientation of approximately 90° occurring within the Nunasvaara South deposit. The southern portion of the Nunasvaara South deposit trends towards 320° and dips steeply (75-85°) to the southwest 230° with a strike length of approximately 800m. Conversely, a hinge in Nunasvaara South changes the orientation of the northern portion of the deposit towards 055°, dipping steeply (70-80°) to the northwest with a strike length of approximately 500m. Moving north, the Nunasvaara North, Niska South and Niska North deposits all show a generally consistent strike towards 040°. While all the deposits are also steeply dipping in these areas, some evidence of overturning has been observed. Nunasvaara North is generally vertical or steeply dipping (85°) to the northwest or southeast, Niska South dips steeply (75-85°) to the northwest, and Niska North dips steeply (75-85°) to the southeast. Nunasvaara East, approximately 500m southeast of Nunasvaara North, is curved in shape but generally strikes 137° and dips (65-75°) to the southwest.
New deposit areas at Niska delineated by 2022 drilling are orientated north-south (000°) and 150°, both dipping towards the west at 65-80°.
Drilling has intersected the graphite mineralisation to a maximum true depth of approximately 200 m.
Commodity Production
The Vittangi Anode Project employs a vertically integrated flowsheet to produce high-performance coated Li-ion battery anode product (Talnode®-C) or Coated Spherical Purified Graphite (CSPG).
| Commodity | Units | Avg. Annual |
|
Graphite
|
t
| 19,500 |
All production numbers are expressed as cspg.