Frontier Lithium Makes a New Discovery on the PAK Lithium Project
Sudbury, Ontario, November 7, 2018 – Frontier Lithium Inc. (TSX.V: FL) (the “Company) is pleased to announce the new discovery of the Spark Pegmatite on the PAK Lithium Project (“The Project”), located only 2.3 km north-west of the PAK deposit (Figure 1). The showing is an LCT (Lithium Cesium Tantalum) pegmatite intruding vertically into metavolcanics and mafic schists. It was discovered in the final days of a geological mapping program in late September 2018. It is located on a topographic high and very well exposed (3.5 hectares) due in part to the latest forest fires of 2012.
- A new LCT Pegmatite showing, herein called the Spark Pegmatite, was discovered 2.3 km northwest of the PAK Lithium Deposit;
- The surface area of the exposed pegmatite is 3.5 hectares with widths greater than 100m and a strike length of more than 300m. All indications suggest the pegmatite has a sub-vertical orientation;
- A total of 236.4 m of channels have been cut and sampled. Channel 33, representing 20% of the total known/visible width, have been received to date with an average of 1.98% Li2O over 23 metres. The results of 213.4 metres of channel samples in 6 channels remains outstanding;
- Spodumene has been identified in all but 6 metres of channel cut to date.;
- The results from Electron Microprobe work on spodumene from selected polished thin sections indicate similar Fe2O3, Na2O and Al2O3 content as the PAK deposit.
Initial mapping and sampling indicate significant zones that appear similar to the Lower Intermediate Zone at the PAK Deposit. Aplite, feldspar and spodumene is common throughout the outcrop exposure. Unfortunately snow cover in October prevented any detailed mapping and work was largely restricted to channel sampling. A dronederived high resolution ortho-corrected image complete with detailed DEM (Digital Elevation Model) was collected
and will form the basis for modelling and future drill programs. Figure 2 is a view from the west showing the trace of the channels draped over the topography.
No mechanized stripping was required to complete channel sampling. As a result, one 23 metre channel (Channel 33) was cut at the time of discovery and an additional 6 channels (213.4 m) were cut three weeks later in October just before freeze-up suspension of The Project. The presence of spodumene was described and is ubiquitous throughout the channels. Spodumene is abundant in 10 to 85% of each sample interval in 194.1 of the total 236.4 metres cut. There was only 6 metres of channel where spodumene was not identified.
The initial channel averaged 1.98% Li2O over 23 metres with a 2 metre zone of 3.44% Li2O. The assay and location for the channels are presented in Table I and Table II respectively. The remaining results from the recently cut channels will be disseminated as they are received and pass quality assurance and control protocols (QAQC). Limited EMP (Electron Micro-Probe) work was completed on spodumene from polished thin sections from one sample collected from Channel 33 and from five additional grab samples across the pegmatite. The results indicate similar Na2O and Al2O3 content for spodumene as the PAK Deposit (Figure 3). The iron oxide (Fe2O3) content from this initial work within the spodumene averages 0.15%, which at this point in time is analogous to the PAK Deposit.
More work will be completed on the impurity assessment as the pegmatite zonations become better understood.
Figure 1: Location Map of the Spark Pegmatite showing work completed and a comparison with the PAK Deposit.
Figure 2: 3D rendering showing outline of known exposure of the Spark Pegmatite and location of Channel traces.
Table I – Channel Summary
Table II – Channel Locations
Figure 3: Electron Microprobe results from Spodumene crystals from the Spark Pegmatite showing comparisons with PAK UIZ and LIZ (Upper and Lower Intermediate Zones); Box A: Fe2O3 verses Al2O3; Box B: Fe2O3 verses Na2O; Box C: range variation of Fe2O3 and Box D: range variation for Na2O
“The Spark Pegmatite discovery is a significant event for Frontier Lithium and all project stakeholders” stated Trevor Walker, President and CEO. “The showing appears to be analogous to the PAK Deposit. We will be expedient with our assessment of the showing because we see the leverage it represents for the further de-risking it provides to
the development of the PAK Lithium Project”.
All scientific and technical information in this release has been reviewed and approved by Garth Drever, P.Geo., the qualified person (QP) under the definitions established by National Instrument 43-101. Under Frontier’s QA/QC procedures, channels are cut with a motorized circular diamond saw, and are 4 cm wide and 10 cm deep. The channels are typically oriented perpendicular to the strike of the pegmatite internal mineralogical zones and are cut continuously across the zones. The samples are removed using a hammer and chisel. The length of a channel is determined by the width of the pegmatite zone. Offset channels are cut where deemed appropriate. Sample lengths typically are 1 metre but can be less depending on zone mineralogy and boundaries. Samples are described, placed into a poly sample bag with a numbered sample tag and then shipped to the assay lab for quantitative multielement analysis.
All samples were assayed by AGAT Laboratories Ltd. (“AGAT”), an ISO accredited laboratory in Mississauga, Ontario. Sample blanks along with tantalum, lithium, rubidium and cesium certified reference material was routinely inserted into the sample stream in accordance with industry recommended practices. Field duplicate samples were also taken in accordance with industry recommended practices.
The Company also announces that it has granted an additional 500,000 stock options. The options are set for a period of five years, expiring on November 7, 2023. The options are prices at $.40 and are subject to regulatory approval.