Brunswick Exploration Drills 1.80% Li2O Over 37.2 Meters in New Mineralized Dyke at Mirage
Brunswick Exploration Drills 1.80% Li2O Over 37.2 Meters in New Mineralized
Dyke at Mirage
MONTREAL, Jan. 18, 2024 -- Brunswick Exploration Inc. (TSX-V: BRW, OTCQB: BRWXF; “BRW” or the “Company”) is
pleased to report final drill results from the Fall 2023 program at the Mirage Project, located in the Eeyou Istchee-James Bay
region of Quebec. Drilling has outlined two new spodumene mineralized dykes (MR-5 and MR-6) with significant thickness and
grade, all within the Central Zone.
Highlights include
• MR-23-28 intersected high-grade mineralization of 1.80% Li2O over 37.2 meters starting from surface in newly
discovered dyke MR-6 located 500 metres northeast of MR-3.
• Evidence of potential stacking of dykes in Central Zone where MR-23-35 intercepted 11.5 meters grading 1.1%
Li2O approximately 100 meters south of MR-3 in new dyke MR-5.
• Hole MR-23-33 intercepted over 9 blind, stacked dykes over a down-hole length of approximately 95 meters with
thickness varying from 0.8 to 7.3 meters.
• All of the dykes announced in this NR are open along strike and at depth.
• In the maiden drill program, 5 of the 6 dykes reported continuous high-grade mineralization (1.5+% Li2O) over
significant width (10+ metres) all within a roughly 2 x 2 km dyke swarm.
Table 1: Drilling Highlight
Hole ID Zone Dyke From (m) To (m) Length (m) Li2O% Ta2O3 (ppm)
MR-23-28 Central MR-6 3.8 40.9 37.2 1.80 154
MR-23-29 Central MR-6 2.6 34.8 32.2 1.55 168
MR-23-35 Central MR-5 34.5 46.0 11.5 1.10 Assay pending
Mr. Killian Charles, President and CEO of BRW, commented: “I am very pleased with our maiden drill program at Mirage which
successfully identified significant lithium mineralization in nearly all holes drilled. Importantly, all of the dykes drilled at Mirage
remain open both along strike and at depth. Alongside the discovery of several blind dykes (predominantly in the Central Zone
to date), several undrilled targets and a favorable structure in excess of twelve kilometres, we have built a strong foundation for
continued exploration success at Mirage as we advance towards our Phase 2 drilling program scheduled to begin imminently.”
Table 2 : Final Drill Results from 2023 Drill Campaign
Hole ID Zone Dyke From (m) To (m) Length (m) Li2O% Ta2O3 (ppm)
MR-23-27 South MR-4B 107.7 109.8 5.8 0.03 472
MR-23-28 Central MR-6 3.8 40.9 37.2 1.80 154
MR-23-29 Central MR-6 2.6 34.8 32.2 1.55 168
MR-23-30 Central MR-6 1.7 26.2 24.6 1.75 143
MR-23-31 Central 15.1 16.4 1.3 0.78 Assay pending
and 28.4 33.7 5.3 1.50 Assay pending
and 42.4 46.6 4.2 1.13 Assay pending
and 54.2 56.4 2.2 1.01 Assay pending
MR-23-32 Central 27.2 35.5 8.3 0.67 Assay pending
and 43.4 46.0 2.6 1.55 Assay pending
and 52.9 55.9 3.0 0.30 Assay pending
MR-23-33 Central 140.2 144.4 4.2 1.85 Assay pending
and 159.1 162.2 3.1 0.74 Assay pending
and 163.7 164.5 0.8 0.34 Assay pending
and 170.2 171.0 0.8 0.95 Assay pending
and 186.1 188.7 2.6 Assay pending
and 191.4 192.3 0.9 0.63 Assay pending
and 196.7 203.7 7.0 Assay pending
and 218.2 220.2 2.0 1.77 Assay pending
and 232.4 234.9 2.5 Assay pending
MR-23-34 South 76.7 79.3 2.6 2.39 Assay pending
MR-23-35 Central MR-5 34.5 46.0 11.5 1.10 Assay pending
MR-23-36 Central 38.5 42.0 3.5 1.30 Assay pending
and 175.9 178.2 2.3 1.02 Assay pending
and 226.0 234.6 8.6 0.60 Assay pending
Central Zone Drilling
The company received from the laboratory the last batch assay results for 10 holes from its maiden drill program at Mirage.
Intersections reported in this announcement confirm the discovery of multiple, new lithium mineralization in spodumene-
bearing pegmatites in the Central Zone (Figure 1). Of these, MR-5 and MR-6 are discussed herein.
MR-6 Dyke
The high-grade MR-6 dyke is defined by three holes drilled in fan pattern which returned values of 1.80% Li2O over 37.2 meters
(MR-23-28), 1.55% Li2O over 32.2 meters (MR-23-29), 1.75% Li2O over 24.6 meters (MR-23-30). As all drill holes started in the
pegmatite, the true thickness of the dyke is unknown but assumed to be greater than 32m. The dyke reaches surface and is
interpreted to have a shallow dip of 15 degrees toward the southeast. So far, the dyke is mapped at surface over 110m and
traced down-dip over 100 m (Figure 2). The MR-6 dyke is located approximately 500 meters to the northeast and along strike
of MR-3 where the company reported several intercepts over 40m of mineralized pegmatite with grade above 1% Li 2O.
However, due to significantly higher reported grade and much shallower dip, at this time, it is assumed to be a different dyke.
No drilling was done between the two dykes and MR-6 remains open in all directions.
MR-5 Dyke
The MR-5 dyke is located approximately 100m south of MR-3 dyke and returned values of 1.1% Li2O over 11.5 meters (MR-
23-35) within a larger 22 meters pegmatitic zone. The true thickness is estimated at 95% of the core length. Hole MR-23-35
followed up on the dyke intersected in MR-23-08 and is assumed to have a shallow dip of 25 degrees to the southeast. MR-5
does not outcrop at surface and is open in all directions. MR-5 proximity to MR-3 dyke potentially indicates that the structure
is favorable for stacking.
Central Zone Deformation Corridor
To the south of MR-6, a major NE-SW deformation corridor transects the Mirage Project. A total of four holes (MR-23-31, -32, -
33, -36) were drilled in the corridor. Unlike other holes drilled across Mirage, spodumene dykes are narrower but show multiple
stacking over wider intercepts and maintain their high-grade nature.
Holes MR-23-31 and -32 were designed to test four small spodumene-bearing pegmatite outcrops mapped in 2023. Both holes
intercepted six semi-continuous intervals of smaller (<10 meters), stacked spodumene-bearing pegmatite dykes gently dipping
30 degrees to the southeast over approximately 40m at a vertical depth 40 and 60 meters in MR-23-31 and MR-23-32
respectively. These dykes are located near and at high angles from the metabasalt and metasediment contact and all remain
open in all directions. The most significant interval returned values of 1.50% Li 2O over 5.3 meters and 1.13% Li 2O over 4.2
meters in MR-23-31 respectively at 23m and 33m vertically from surface.
In the southeastern portion of the Central Zone, south of MR-23-31 and -32, MR-23-33 and MR-23-36 were blind holes that
drilled and intercepted a series of pegmatite intervals mostly hosted in metabasalt. MR-23-33 outlined over 9 separate
spodumene-bearing pegmatite dyke intervals (<10 meters) from 140.2 to 234.9m down hole and was stopped at 240m. The
pegmatite dyke swarm represented roughly 32% of a 95m interval. Similar mineralization and results were observed in hole MR
-23-36, 150m laterally to the west.
Figure 1: Surface Map of the Mirage Project and Drill Holes Completed to Date
Figure 2: Cross Sections A to A’ Along Dyke MR-6
QAQC
All drill core samples were collected under the supervision of BRW employees and contractors. The drill core was transported
by helicopter and by truck from the drill platform to the core logging facility in Val-d’Or. Each core was then logged,
photographed, tagged, and split by diamond saw before being sampled. All pegmatite intervals were sampled at approximately
1m intervals to ensure representativity, and ¼ core splits were inserted regularly as duplicates. Samples were bagged; blanks
and certified reference materials for lithium were inserted at regular intervals. Groups of samples were placed in larger bags,
sealed with numbered tags, in order to maintain a chain of custody. The sample bags were transported from the BRW
contractor facility to the ALS laboratory in Val-d’Or. All sample preparation and analytical work was performed by ALS.
Samples were crushed in order for 70% of the material to pass through a 2mm screen (method CRU-31), a riffle split was
made of a 1,000g sub-sample (SPL-21), and the split sample pulverized (PUL-31) to obtain more than 85% of the material
inferior to 75µm. A 0.2g sub-sample of the pulverized fraction was dissolved in a sodium peroxide solution, prior to lithium
analysis by ICP-AES according to the ALS method ME-ICP82b. All results passed the QA/QC screening at the lab and all
inserted standard and blanks returned results that were within acceptable limits. All reported drill intersections are calculated
on the basis of a lower cutoff grade of 0.10% Li2O, with maximum internal dilution of 1 meter. Host basalts adjacent to the
dykes grade up to 0.3% Li2O but were excluded from the reported intersections. All drill hole collar, orientation and inclination
data are available on the Company’s web site.
Qualified Person
The scientific and technical information contained in this press release has been reviewed and approved by Mr. François
Goulet, Manager Quebec. He is a Professional Geologist registered in Quebec and is a Qualified Person as defined by
National Instrument 43-101.
About Brunswick Exploration
Brunswick Exploration is a Montreal-based mineral exploration company listed on the TSX-V under symbol BRW. The
Company is focused on grassroots exploration for lithium in Canada, a critical metal necessary to global decarbonization and
energy transition. The Company is rapidly advancing the most extensive grassroots lithium property portfolio in Canada.
Cautionary Statement on Forward-Looking Information
This news release contains "forward-looking information" within the meaning of applicable Canadian securities legislation
based on expectations, estimates and projections as at the date of this news release. Forward-looking information involves
risks, uncertainties and other factors that could cause actual events, results, performance, prospects and opportunities to
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needed in the future; changes in equity markets; inflation; fluctuations in commodity prices; delays in the development of
projects; the other risks involved in the mineral exploration and development industry; and those risks set out in the
Corporation’s public documents filed on SEDAR at www.sedar.com. Although the Corporation believes that the assumptions
and factors used in preparing the forward-looking information in this news release are reasonable, undue reliance should not
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Photos accompanying this announcement are available at:
https://www.globenewswire.com/NewsRoom/AttachmentNg/3bc30b65-a757-4b67-941b-6010f8004524
https://www.globenewswire.com/NewsRoom/AttachmentNg/24a38c7c-2d4a-4f84-b388-3df4a6349f18
Investor Relations/information
Mr. Killian Charles, President and CEO ([email protected])