CanAlaska Announces West McArthur JV Drilling Extends Uranium Mineralization Large Fault Structures Identified Along "42 Zone" Corridor With Strong Alteration and Associated Anomalous Uranium and Metals Winter Geophysics Program Completed To Identify Targets a Further 7 km Along 42 Zone
CanAlaska Announces West McArthur JV
Drilling Extends Uranium Mineralization
Large Fault Structures Identified Along "42 Zone" Corridor With Strong Alteration and
Associated Anomalous Uranium and Metals
Winter Geophysics Program Completed To Identify Targets a Further 7 km Along 42 Zone
Structure
Vancouver, British Columbia--(Newsfile Corp. - April 14, 2022) -
CanAlaska Uranium Ltd. (TSXV:
CVV
) (OTCQB:
CVVUF)
(FSE:
DH7N
)
("CanAlaska" or the "Company") is pleased to announce
receipt of the full geochemical results for the 2021 summer drilling program at its West McArthur uranium
project in the Eastern Athabasca Basin (Figure 1), a joint venture with
Cameco Corporation
(TSX:
CCO) (
NYSE:
CCJ
)
("Cameco").
Geochemical results received confirm the presence of high-
grade uranium mineralization previously reported as 0.76 % eU
3
O
8
over 10.0 m at the "42
zone"
(See News Release dated December 16
th
, 2021). In addition, the results confirm anomalous
uranium and pathfinder element concentrations in a second target 1.8 kilometres along strike to the
West coincident with a drill-defined large alteration and fault system. The winter geophysical program at
West McArthur has also been completed.
Figure 1 - West McArthur property location map
To view an enhanced version of Figure 1, please visit:
https://orders.newsfilecorp.com/files/2864/120416_81936386a40609fc_001full.jpg
As previously reported, the program objectives for the 2021 drilling were successfully met with the
completion of the six hole, 5,419 m drill program in early November. A new high-grade intersection of
1.62 % eU
3
O
8
over 2.6 metres (m) from 796.1 m within a 10 m wide interval of 0.76 % eU
3
O
8
was
identified in the "42 Zone".
The "42 Zone" mineralization in drillhole WMA063-1 had a strongly bleached lower sandstone column
with black sooty pyrite, red hydrothermal hematite, and strong structurally-controlled clay alteration.
Geochemical assays from WMA063-1 (Table 1), collared at an azimuth of 360˚ with a dip of -79.4˚
(Figure 2), confirm the previously reported equivalent uranium results.
Unfortunately, within the highest
grade section of the mineralized zone in WMA063-1, strong clay alteration and faulting provided very
poor core recovery. As a result, only 5% of the core was recovered over a 5.0 metre sub-interval from
767.4 - 772.4 m. Due to the poor recovery, the equivalent uranium intercept calculated from the
calibrated down-hole radiometric probe data is interpreted to be more representative with 1.46 %
eU
3
O
8
over 5.0 m from 767.4 m (Table 1).
It is important to note that a 10 cm interval of core taken
from within the poor recovery zone returned an assay value of 3.01% U
3
O
8
.
Figure 2 - West McArthur Project Plan View 42 Zone Sandstone Uranium Distribution
To view an enhanced version of Figure 2, please visit:
https://orders.newsfilecorp.com/files/2864/120416_81936386a40609fc_002full.jpg
The new high-grade intercept extends the "42 Zone" 35 m west of drill hole WMA055-2. The new drillhole
intersected a significantly wider interval of mineralization than in the previous hole. WMA055-2,
completed in 2019, intersected 2.3% U
3
O
8
over 2.1 m, including 6.8% U
3
O
8
over 0.7 metres.
Table 1 - WMA063-1 Mineralized Geochemical and Equivalent Uranium Intersections
Drill Hole
From
(m)
To
(m)
Length
(m)
3
Average Grade
(%eU
3
O
8
)
Average Grade
(%U
3
O
8
)
Maximum
Grade (%eU
3
O
8
)
Maximum
Grade (%U
3
O
8
)
WMA063-1
1
760.9
762.4
1.5
0.17
0.21
0.35
0.39
WMA063-1
1
766.9
767.4
0.5
0.34
0.51
0.39
0.51
WMA063-1
1, 2
767.4
772.4
5.0
1.04
1.46
2.57
3.01
WMA063-1
1
772.4
776.9
4.5
0.5
0.39
1.29
0.76
WMA063-1 Composited
1,
2
766.9
776.9
10.0
0.76
0.93
2.57
3.01
Notes:
(1)
Intersection interval is composited above a cut-off grade of 0.1%
U
3
O
8
/ eU
3
O
8
(2)
Due to poor core recovery from 767.4 - 772.4 m, the geochemical grades over this interval may not be fully
representative of the entire interval.
(3)
Length indicates downhole length and does not represent true-thickness of mineralization
In addition, WMA065-1 confirmed a large uranium and associated pathfinder metal elements halo in the
sandstone approximately 19 m west of WMA063-1, typical of the "42 Zone" area (Figure 2). Within
WMA065-1, elevated uranium (≥ 0.5 ppm uranium partial digest) consisting of up to 9.31 ppm in a
composite sample extends 490 m vertically above the unconformity with elevated nickel (> 1 ppm nickel
partial digest) up to 9.9 ppm and copper (> 1 ppm copper partial digest) up to 38.1 ppm in composite
samples extending 300 m vertically above the unconformity. The presence of elevated pathfinder
elements throughout the sandstone column in the "42 Zone" geochemical halo indicates that further drill
testing is warranted targeting extensions of the "42 Zone", where the outlined unconformity-related
uranium mineralization remains open in multiple directions.
Figure 3 - Uranium geochemistry associated with wide structural zone and alteration halo
1,800 m to the southwest of the "42 Zone"
To view an enhanced version of Figure 3, please visit:
https://orders.newsfilecorp.com/files/2864/120416_81936386a40609fc_003full.jpg
Evaluation of the southwestern extension of the conductive C10 corridor that hosts the controlling
structure for the "42 Zone" mineralization and large Fox Lake Uranium Deposit was also successful
during the 2021 drilling program. In WMA062 and wedge hole WMA062-1, collared at an azimuth of
320˚ with a dip of -65.4˚, 1,800 m to the Southwest of the "42 Zone" (Figure 3), highly anomalous
uranium and copper values are associated with a large alteration halo and fault zone in the basal
sandstone. The main fault zone, which is 51 m wide at the unconformity in WMA062-1, is characterized
by strongly disrupted sandstone with broken to blocky core, re-activated sandy-clay gouge, structurally-
controlled quartz dissolution, grey sooty pyrite alteration, and pervasive strong bedding- and fracture-
controlled quartz dissolution causing very poor recovery (0 - 30%).
The basal sandstone associated with
the fault zone is associated with anomalous uranium (> 0.5 ppm uranium partial) up to 8.6 ppm, copper
(>1.0 ppm copper partial) up to 24.4 ppm, and boron (> 100 ppm boron total) up to 2,350 ppm that reach
approximately 180 m vertically above the unconformity. Below the unconformity and within the basement
along this drill fence, the targeted fault zone is characterized by broken to blocky core with re-activated
chloritic clay gouges hosting angular clasts of wall rock and ductile shear fabrics. Within the fault zone,
the rock is strongly altered with hematite, chlorite, clay replacement, and bleaching. Pervasive
hydrothermal basement alteration continues at depth in both WMA062 and WMA062-1.
CanAlaska VP Exploration, Nathan Bridge, comments,
"The results returned from our assay samples
confirm the initial probe equivalent results from the new mineralization intersected in WMA063-1. The
outlined unconformity-associated mineralization in the "42 Zone" is open in multiple directions and
warrants further testing. In addition, the geochemical results from the composite sampling program
just to the west of the 42 Zone show the continuation of the strong geochemical halo. Furthermore, the
anomalous uranium and pathfinder elements associated with the WMA062 section, 1.8 km along
strike to the southwest, indicate elevated geochemical values associated with the large basement and
sandstone alteration halo and fault zone. Further testing is needed in this area to evaluate the
potential for further mineralization along the controlling structure. With the completion of the winter
geophysical program, we'll be prepared to execute on these objectives."
CanAlaska CEO, Cory Belyk, comments,
"The West McArthur project continues to respond to our
exploration investment delivering not only extensions of high-grade uranium at our "42 Zone", but
also delivering multiple new target areas over several kilometres of the C10 corridor. Tier 1
unconformity uranium deposits in the Athabasca Basin occur in multiple zones or pods over several
kilometres, some of which may be smaller than a football field. CanAlaska's exploration team has now
developed several additional targets along this corridor and the C10 fault structure that have clear
indications of mineralizing processes present. The geophysical program data will allow for refinement
of drill targets within the "42 Zone" extension area and further along this mineralized corridor for drill
testing in 2022. These are excellent results for the JV and for CanAlaska's shareholders in an ever-
strengthening uranium market."
The 2021 program was fully funded by CanAlaska, the project operator, increasing the Company's
majority interest in the West McArthur project to 75.55%.
2022 Geophysical Program
The Company is pleased to announce that the 2022 Time Domain Electromagnetic survey has been
completed. The survey imaged 7 km of the C10 corridor to the west of the 42 Zone at 400 - 800 m
spaced lines. Preliminary interpretation has identified multiple conductive responses interpreted to be
associated with targeted graphitic pelite units in the basement rocks below the unconformity. This work
was completed under the approved $5 million 2022 program. The geophysical data are currently being
processed and will be reported on at a later date ahead of the upcoming summer drill program on the
West McArthur project.
Geochemical Sampling Procedures and Use of Radiometric Equivalent Grades
Drill core samples were shipped to the Saskatchewan Research Council Geoanalytical Laboratories
(SRC) in Saskatoon, Saskatchewan in secure containment for preparation, processing, and multi-
element analysis by ICP-MS and ICP-OES using total (HF:NHO
3
:HClO
4
) and partial digestion
(HNO
3
:HCl), boron by fusion, and U
3
O
8
wt% assay by ICP-OES using higher grade standards.
Radiometric assay samples are chosen based on radiometric equivalent uranium grades and
scintillometer (SPP2) peaks, and comprise 0.3 to 0.8 m continuous split-core samples over mineralized
intervals. A 0.1% U
3
O
8
and cut-off with a maximum internal dilution of 1 m is used for compositing and
reporting the data. Sandstone and basement geochemical composite samples comprise multiple, equal
sized, full core "pucks" spaced over the sample interval. The SRC is an ISO/IEC 17025/2005 and
Standards Council of Canada certified analytical laboratory. Blanks, standard reference materials, and
repeats were inserted into the sample stream at regular intervals by CanAlaska and the SRC in
accordance with CanAlaska's quality assurance / quality control (QA/QC) procedures. Geochemical
assay data are subject to verification procedures by qualified persons employed by CanAlaska prior to
disclosure.
During active exploration programs, following the completion of a drillhole, the hole is radiometrically
logged using calibrated downhole GeoVista NGRS and TGGS (Triple GM) gamma probes which collect
continuous readings along the length of the drill hole. Preliminary radiometric equivalent uranium grades
("eU
3
O
8
") are then calculated from the downhole radiometric results. The probe is calibrated using an
algorithm calculated from the calibration of the probe at the Saskatchewan Research Council facility in
Saskatoon. A 0.1% eU
3
O
8
cut-off with a maximum internal dilution of 1 m is used for compositing and
reporting the data. The equivalent uranium grades are preliminary and are subsequently reported as
definitive assay grades following sampling and chemical analysis of the mineralized drill core. In the
case where core recovery within a mineralized intersection is poor, radiometric grades are considered
to be more representative of the mineralized intersection and may be reported in the place of assay
grades. Radiometric equivalent probe results are subject to verification procedures by qualified persons
employed by CanAlaska prior to disclosure.
All reported depths and intervals are drill hole depths and intervals, unless otherwise noted, and do not
represent true thicknesses, which have yet to be determined.
About CanAlaska Uranium
CanAlaska Uranium Ltd. (TSXV: CVV) (OTCQB: CVVUF) (FSE: DH7N) holds interests in
approximately 300,000 hectares (750,000 acres), in Canada's Athabasca Basin - the "Saudi Arabia of
Uranium."
CanAlaska's strategic holdings have attracted major international mining companies.
CanAlaska is currently working with Cameco and Denison at two of the Company's properties in the
Eastern Athabasca Basin. CanAlaska is a project generator positioned for discovery success in the
world's richest uranium district. The Company also holds properties prospective for nickel, copper, gold
and diamonds. For further information visit
www.canalaska.com
.
The qualified technical person for this news release is Nathan Bridge, MSc., P.Geo., CanAlaska's Vice
President, Exploration.
On behalf of the Board of Directors
"Peter Dasler"
Peter Dasler, M.Sc.
President
CanAlaska Uranium Ltd.
Contacts:
Cory Belyk, Executive VP and CEO
Tel: +1.604.688.3211 x 306
Email:
Peter Dasler, President
Tel: +1.604.688.3211 x 138
Email:
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this
release.
Forward-looking information
All statements included in this press release that address activities, events or developments that the
Company expects, believes or anticipates will or may occur in the future are forward-looking
statements.
These forward-looking statements involve numerous assumptions made by the Company
based on its experience, perception of historical trends, current conditions, expected future
developments and other factors it believes are appropriate in the circumstances. In addition, these
statements involve substantial known and unknown risks and uncertainties that contribute to the
possibility that the predictions, forecasts, projections and other forward-looking statements will prove
inaccurate, certain of which are beyond the Company's control.
Readers should not place undue
reliance on forward-looking statements.
Except as required by law, the Company does not intend to
revise or update these forward-looking statements after the date hereof or revise them to reflect the
occurrence of future unanticipated events.
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