Frontier Lithium identifies an average of 1.91% Li₂O over 236m of all channels sampled on the Spark Pegmatite
Sudbury, Ontario, January 17, 2019 – Frontier Lithium Inc. (TSX.V: FL) (the “Company”) is pleased to announce the results of surface channel sampling of the newly discovered Spark Pegmatite, 2.3 km northwest of the PAK deposit (Figure 1), located on the Electric Avenue, a newly emerging premium lithium-metal district hosted in the Canadian Shield of northwestern Ontario. See Frontier Lithium Press Release issued November 7, 2018 for additional information.
Channel sampling was initiated at the time of discovery in September 2018 and completed a month later in October. The pegmatite is well exposed where minimal stripping by hand was required to complete the channel sampling. In total 236.4m of channels were cut and represent two main transects (Channels 33 to 35 for 64m and Channels 37 and 38 for 94.5m) that are 65m apart and 3 additional channels, CH-36, CH-39 and CH-40 cut where the pegmatite was exposed. Figure 2 is a view from the west showing the trace of the channels draped over the topography.
Figure 1: Location Map of the Spark Pegmatite showing channel locations overlain on high-resolution orthorectified image.
Figure 2: 3D rendering showing exposure of the Spark Pegmatite and Channel intercepts.
The assay results and location for the channels are presented in Table I and Table II respectively.
Channel 33 to 35 represents a continuous transect of 64m averaging 2.05% Li2O while Channel 37 to 38 located 70m to the east, is 94.5m averaging 1.85% Li2O with elevated Ta2O5 up to 615 ppm and 2.9% Li2O over 6.2m from 63.2 to 69.4m. Channel 36 (northern extension of Channel 33 to 35) averaged 2.02% Li2O over 35m. Channel 36 could not be continuously sampled; however, overburden was removed by hand exposing continuous pegmatite. Channels 39 and 40 to the east average 1.88% Li2O over 26.9m and 1.54% Li2O over 16m respectively.
Sampling the surface exposures of the Spark Pegmatite shows consistent grades of Li2O throughout the sampled area varying from a low of 1.5% in Channel 40 in an aplite-rich pegmatite to over 2% throughout much of the rest of the pegmatite with narrower zones (<18m) ranging between 2.5% and 3.2%. High grade lithium zones of over 4% Li2O similar to the UIZ (Upper Intermediate Zone) at the PAK deposit occur, but over intervals typically less than 2m.
“We are extremely pleased these results and excited about the addition to the PAK Lithium Project. The consistent lithium grade across the channels and the lithological homogeneity across the width of the exposed pegmatite suggests this pegmatite could be substantial. The showing is the focus of exploration as it appears that the potential for a resource to augment the PAK deposit is high.”, stated Trevor Walker, President and CEO of the “Company”.
Table I: Channel Summary
Table II: Channel Summary
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 multi-element 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.