Murchison Intersects Extensive Sulphide Mineralization at BDF – pXRF Results Include 11.50 m Estimated at 2.13% Ni, 0.64% Cu, and 0.10% Co – Expands Zone of Mineralization
News Release
Murchison Intersects Extensive Sulphide Mineralization at BDF –
pXRF Results Include 11.50 m Estimated at 2.13% Ni, 0.64% Cu,
and 0.10% Co – Expands Zone of Mineralization
September 7 th, 2022 ( Burlington, Ontario): Murchison Minerals Ltd. (“Murchison” or the
“Company”) (TSXV: MUR | OTCQB: MURMF) is pleased to announce results analysed using a
portable x-ray fluorescence (pXRF) from the first diamond drillhole, at the Barre de Fer (“BDF”)
zone, as part of the 2022 Summer Exploration Program on the 100% - owned HPM (Haut-Plateau
de la Manicouagan) Project, located in Quebec . The BDF zone, was the focus of the diamond
drilling Phase of the 2022 summer exploration prog ram, is a high -grade nickel, copper, cobalt
zone with currently modelled dimensions of: strike length 315 m, width of 150 m and depth of
295 m. These preliminary results indicate the successful delineation of mineralization within the
modeled zone of mineralizatio n, as well as confirming extensive expansion beyond the current
model.
Portable XRF (pXRF) analyzers determine the chemistry of a sample by measuring the fluorescent
(or secondary) X-ray emitted from a sample when it is excited by a primary X-ray source. It should
be noted that the results only provide an indication of the amount of Ni, Cu and Co present.
Certified assaying of the core samples is still required to accurately determine the amount of
mineralization ( Nickel-Copper-Cobalt). The Company has implemented rigorous QA/QC
procedures utilizing a direct rock sampler (Figure 6) to produce representative preliminary results
(see pXRF Procedures and QA/QC below).
BDF22-001 Highlights
• pXRF results confirm the drill hole intersected zones of extensive high-grade Ni-Cu-Co
sulphide mineralization
• The massive sulphide mineralization comprises pyrrhotite grains partially separated by
loops of chalcopyrite and pentlandite.
• The hole successfully confirmed mineralization downdip from DH-2006, along with
expanding mineralization outside of the currently modeled zone (Figures 1& 2)
• The hole, was drilled to a depth of 404 m , intersected four broad zones of Ni -Cu-Co
sulphide bearing mineralization totalling 130.00 m of composite thickness (Table 1)
including:
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o 18.05 m estimated at 1.98% pXRF Ni Eq. (89.95 to 108.0 m) including 8.1 m at
3.45% pXRF Ni Eq.
o 69.90 m estimated at 0.68% pXRF Ni Eq. (267.0 to 336.90 m) including 16.1 m at
1.4% pXRF Ni Eq.
Table 1: BDF22-001 pXRF Results
Hole From
(m) To (m) Length
(m)*
pXRF Ni
%
pXRF Cu
%
pXRF Co
%
pXRF Ni Eq.
%**
BDF22-001
89.95 108.00 18.05 1.58 0.56 0.08 1.98
Includes 96.50 108.00 11.50 2.13 0.64 0.10 2.64
Includes 97.80 105.90 8.10 2.82 0.78 0.13 3.45
122.00 132.85 10.85 0.29 0.24 0.02 0.42
180.50 189.00 8.50 0.63 0.30 0.03 0.81
196.50 219.20 22.70 0.20 0.10 0.00 0.24
267.00 336.90 69.90 0.50 0.24 0.04 0.68
Includes 283.40 299.50 16.10 1.03 0.48 0.08 1.40
* Reported as core length, true thickness is not known. **Nickel Equivalent (Ni Eq) values were calculated using the
following USD metal prices from Sept 2, 2022: $9.18/lb Nickel, $3.42/lb Copper, and $23.57/lb Cobalt.
Table 2: Drill Hole Information
Hole Easting Northing Elevation (m) Depth (m) Azimuth (°) Dip (°)
BDF22-001
614922
5722901
886
404
229
-61
2022 Summer Diamond Drilling
During the 2022 summer exploration program, a total of 13 diamond drill holes were completed,
comprising 4,316 metres. This includes ten drillholes at BDF, and an additional three holes at
Syrah. The drill core is currently undergoing processing and pXRF results are being determined .
Results will be released as soon as the data has been verified. The pXRF results from BDF22-001
demonstrate the expansion of the BDF zone, particularly below the current modeled mineralized
zones.
The observed sulphide mineralization, in addition too t he use of a Thermo Scientific direct rock
sampler (DRS) and subsequent p XRF analysis has allowed Murchison to a ssess preliminary
drilling results. Samples from BDF22 -001 have been sent to the Saskatchewan Research
Council’s Geoanalytical Laboratory for standard certified assaying.
The Company continues to progress towards completion of a maiden resource on BDF by early
Q1of 2023.
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Figure 1: Location map of Barre de Fer, showing drill hole BDF22-001
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Figure 2: Barre de Fer Zone Cross-Section with Preliminary Nickel Mineralization Model and pXRF
results from BDF22-001.
BDF22-001 Mineralization
The mineralization observed in BDF22-001 occurs within 5 separate zones. The upper
intersection consists of multi-metre (Figure 3) massive sulphide mineralization. Subsequent
zones of mineralization occur primarily as disseminated and stringer vein sulphides, over broad
zones (tens of metres) with intermittent and localized zones of semi-massive to massive sulphide
which range in scale from decimetre to metre.
The sulphide mineralization consists of pyrrhotite with observable pentlandite and chalcopyrite
(Figure 4). The mineralization is variably hosted in a dark moderately serpentinized peridotite,
olivine gabbronorites as well as a dark fine grained norite.
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Figure 3: Massive sulphide mineralization in BDF22-001 at 97.80 m to 105.90 m.
Figure 4: Zoom in on Massive Sulphide in BDF22-001 displaying observable pentlandite (nickel
sulphide) and chalcopyrite (copper sulphide) with pyrrhotite (iron sulphide) mineralization.
Figure 5: Semi-massive, stringer to disseminated mineralization observed in BDF22-001 at 288.07
m to 301.25 m.
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Murchison Minerals President and CEO Troy Boisjoli comments:
“Preliminary pXRF results from the first hole at Barre de Fer for the 2022 summer exploration
program are extremely encouraging and highlight the potential for significant expansion of Ni-Cu-Co
mineralization. The results demonstrate the processes Murchison has put in plac e for the 2022
program provide for the greatest opportunity to target the most prospective areas and expand Barre
de Fer. The team is looking forward to the lab assay results and are working diligently to process
the remaining drill core.”
Murchison Minerals Vice-President of Exploration John Shmyr comments:
“The pXRF results from BDF22-001 are very exciting and are a testament to the hard -work and due
diligence the Murchison team has applied over the past several months in preparation for the 2022
summer exploration program. We are extremely excited to process the remaining drill core and
incorporate the next batch of pXRF results into our working model of Barre de Fer.”
pXRF Sample Procedures and QA/QC
Murchison has implemented a rigorous pXRF sampling and analysis procedure to support the
estimation of Ni, Cu and Co concentrations.
In order to collect a homogenous sample, a direct rock sampler (DRS) was utilized for all samples
(Figure 6). The DRS consists of a modified angler grinder utilizing a diamond blade in which the
rock cuttings are collected within a plastic vial. Each assay sample that is to be submitted for
ICP-OES total digestion and gold platinum palladium fire assay at a lab was sampled using the
DRS. The DRS was used to channel the entire length of each sample with a single pass at a
uniform depth of 3 mm and was cut without water. Each channel was cut parallel to core axis;
adjacent DRS samples were cut along a uniform plane with consistent relative beta rotation
angles to the orientation line, irrespective of the minerals to be intersected. The collected powder
is pressed into a small puck with a very thin plastic film overtop and labelled with its unique
identifying number. Between each sample all equipment was thoroughly cleaned to prevent
cross-contamination. The sample pucks represent a continuous sample across the length of the
mineralized intervals. The DRS channel sample collects a limited amount of material for analysis,
as a result pXRF results may vary from total digest ion ICP-OES and gold platinum palladium fire
assay results for a number of factors, including but not limited to, variability due to nugget effect.
Each sample puck was analyzed using a Niton XL5 XRF analyzer mounted in a test stand. Each
sample was analyzed for 90 seconds utilizing 3 element filters, each filter analyzing for 30
seconds. For every 10 samples analyzed, a standard was also analyzed consisting of certified
reference material tha t was pressed into a sample puck. Five standards were utilized, and the
analyzed standard was selected based on the relative nickel grade of the previous samples so as
to analyze a standard with comparable grade. Multiple blank samples were also prepared b y
sampling barren quartz hand samples and pressing the material into sample pucks. Regular
analysis of the blank material indicates minimal issues regarding sample contamination caused
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by the diamond blade. Each sample is thus assigned a pXRF Ni, Cu, and Co value which will then
be superseded by lab quality assay results when they are received.
Figure 6: Direct rock sampler, sampled core and example sample puck from BDF22-001.
Table 3: – Comparitive Table of Average XRF Results vs Standards
Sample Ni % XRF Ni %
Expected
Cu % XRF Cu %
Expected
Co % XRF Co %
Expected
Oreas 72b (5 analysis) 0.713 0.7086 0.025 0.02 <LOD 0.01
Oreas 73b (14 analysis) 1.54 1.5 0.051 0.04 0.015 0.02
Oreas 74b (1 analysis) 3.4126 3.39 0.1076 0.09 0.0335 0.05
Oreas 75a (1 analysis) 5.0102 5.25 0.2037 0.2 0.0975 0.09
Oreas 76a (1 analysis) 7.1018 7.4 0.2891 0.3 0.1031 0.12
Table 4: – Example XRF analysis of Blank Material
Sample Ni % XRF Cu % XRF Co ppm XRF
QTZ 1 <LOD 0.0205 <LOD
QTZ 2 <LOD 0.0479 <LOD
QTZ 3 0.006 0.0332 <LOD
About the HPM Project
The HPM Project is located within the Haut- Plateau de la Manicouagan area, east of the
Manicouagan structure, the site of a major 215 Ma impact event. The extensive reservoir at
Manicouagan supports five hydro-power plants. The existing Quebec Cartier rail line, located eight
kilometres west of the PYC target area, links Labrador City to Port Cartier and Sept Iles, two major
iron ore port facilities.
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Figure 7: HPM Location Map
The claims host prospective gabbroic, ultramafic and anorthositic bodies within the
Manicouagan metamorphic complex and are associated with significant nickel -copper-cobalt
sulphide mineralization first identified by Falconbridge in 1999, where they discovered extensive
nickel-bearing sulphide mineralization at BDF during drilling in 2001 - 2002. Murchison Minerals
Ltd.’s predecessor – Manicouagan Minerals – drilled in the area in 2008 and 2009. The majority
of the past drilling at the HPM Project targeted the BDF geophysical conductor and confirmed the
presence of nickel-copper-cobalt sulphide mineralization over approximately 300 -metres strike
length to a depth of 295 metres. The mineralization remains open at depth and partially along
strike.
In March of 2022, t he Company completed a comprehensive data compilatio n, verification and
modelling program, comprising all previous drill hole data from the BDF Zone. The modelling