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.
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
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% Li2O. 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
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% Li2O over 5.3 meters and 1.13% Li2O over 4.2 meters in MR-23-31 respectively at 23m and 33m vertically from surface.
In the southeastern portion of the
Figure 1: Surface Map of the
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.
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Investor Relations/information Mr.Killian Charles , President and CEO (info@brwexplo.ca)
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
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