CanAlaska Intersects 11.5 Metres of 10.84% eU3O8 Unconformity Uranium at Pike Zone on West McArthur Joint Venture Drillhole WMA082-6 Intersected 11.5 metres at 10.84% eU 3 O 8 ; including 9.5 metres at 12.99% eU 3 O 8 Unconformity Offset Encountered; Winter Drill Program Continues
CanAlaska Intersects 11.5 Metres of 10.84%
eU3O8 Unconformity Uranium at Pike Zone on
West McArthur Joint Venture
Drillhole WMA082-6 Intersected 11.5 metres at 10.84% eU
3
O
8
; including 9.5 metres at 12.99%
eU
3
O
8
Unconformity Offset Encountered; Winter Drill Program Continues
Vancouver, British Columbia--(Newsfile Corp. - March 27, 2024) -
CanAlaska Uranium Ltd. (TSXV:
CVV)
(
OTCQX: CVVUF) (FSE:
DH7)
("CanAlaska" or the "Company") is pleased to report that two
additional drillholes have been completed on the Pike Zone during the 2024 winter drilling program.
WMA082-6 has intersected
10.84% eU
3
O
8
over 11.5 metres
, including
12.99% eU
3
O
8
over 9.5
metres
. WMA082-5 has intersected
1.40% eU
3
O
8
over 4.5 metres
, including
2.78% eU
3
O
8
over 2.0
metres
. These drillholes were completed as follow-up targets to WMA082-4 which intersected 13.75%
eU
3
O
8
over 16.8 metres, including 40.30% eU
3
O
8
over 4.7 metres and 13.54% eU
3
O
8
over 2.4 metres.
Drilling at the Pike Zone was completed as part of the ongoing winter exploration program on the West
McArthur Joint Venture project (the "Project") in the eastern Athabasca Basin. The West McArthur
project, a Joint Venture with Cameco Corporation, is operated by CanAlaska that holds an 83.35%
ownership in the Project (Figure 1). CanAlaska is sole-funding the 2024 West McArthur program, further
increasing its majority ownership in the Project.
Figure 1 – West McArthur Project Location
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Drillhole WMA082-6 intersected one main interval of uranium mineralization grading
10.84% eU
3
O
8
over 11.5 metres from 798.0 metres
(Figure 2 - Table 1). The mineralization in the sandstone
immediately at the unconformity contact between the Athabasca sandstone and underlying basement
rocks, interpreted to be at 803.0 metres, is characterized by massive to semi-massive and nodular
uranium mineralization associated with yellow and orange uranium secondaries and hematite alteration
(Figure 3). Uranium mineralization continues into the basement rocks of WMA082-6 and is
characterized by nodular, disseminated, clay-hosted, foliation-controlled, and fracture-controlled veinlets
of uranium mineralization associated with localized pale-yellow uranium secondaries and strong
basement alteration.
Figure 2 – Pike Zone Plan and Section
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The lower sandstone column of WMA082-6 is strongly bleached, limonite and clay altered, and contains
several multi-metre scale fault zones that are characterized by abundant clay-filled breccias, core loss
related to broken and blocky core, and zones of quartz dissolution extending over 75 metres above the
uranium mineralization. Intervals of lost core occur within the lower sandstone column above and within
the sandstone-hosted uranium mineralization due to high rock friability. The basement of WMA082-6 is
strongly clay and chlorite altered, resulting in complete replacement of the original rock fabric textures.
Within the basement rocks, localized intervals of lost core occur due to high rock friability as a result of
the alteration.
Drillhole WMA082-5 intersected two intervals of sandstone-hosted uranium mineralization grading
1.40% eU
3
O
8
over 4.5 metres from 804.3 metres
and 0.13% eU
3
O
8
over 0.5 metres from 812.4
metres (Figure 2 - Table 1). The mineralization in WMA082-5 is located immediately above the
unconformity contact between the Athabasca sandstone and underlying basement rocks, interpreted to
be at 815.2 metres. The mineralization in WMA082-5 is characterized by disseminated and nodular
uranium mineralization hosted within a dark grey to black sulfide- and clay-altered sandstone column with
localized intervals of lost core due to high rock friability.
The lower sandstone column of WMA082-5 is strongly bleached, limonite and clay altered, and contains
several multi-metre scale fault zones that are characterized by abundant clay-filled breccias, sandy-clay
gouge, core loss related to broken and blocky core, and zones of quartz dissolution extending
approximately 100 metres above the uranium mineralization. In WMA082-5, a zone of strong secondary
silicification extends approximately 20 metres above the mineralization and contains abundant re-
activated sandy-clay gouges. The basement of WMA082-5 immediately below the mineralization is
strongly clay and chlorite altered, resulting in replacement of the original rock fabric textures.
Figure 3 – WMA082-6 Main Mineralized Intersection
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WMA082-5 overshot the intended target at the unconformity due to a significant unconformity elevation
difference of approximately 9 metres between the original drillhole on the fence, WMA082-4, and the
intended target. This unconformity elevation difference is interpreted to represent structural offset along
the C10S corridor. This drill fence is located approximately 30 metres along strike to the northeast of
high-grade uranium mineralization intersected in WMA082-2, which intersected 1.03% U
3
O
8
over 6.3
metres, including a sub-interval of 2.82% U
3
O
8
over 1.9 metres (see News Release dated January 18,
2024). WMA082-6 has confirmed continuity of high-grade uranium mineralization along the drill fence. In
addition, WMA082-5 indicates that mineralization remains open to the north. Currently, the unconformity
target at Pike Zone remains open in all directions around WMA082-4, WMA082-5, and WMA082-6
(Figure 2).
Drilling at the Pike Zone for the winter drill program has been completed. The Company will continue
focusing on the Pike Zone during the summer drill program, planned to start in June. The current winter
drill program on the West McArthur project should be completed in early April with one drill currently drill-
testing high-priority targets along strike of the Pike Zone. The main objectives of the 2024 drill program
are continued expansion of the Pike Zone discovery and along strike unconformity testing to the
northeast and southwest.
Assay results for all drillholes completed during the winter program are currently pending.
CanAlaska CEO, Cory Belyk, comments,
"The Pike Zone continues to deliver very high-grade
uranium mineralization at the unconformity contact based on results from the last two holes of the
winter program. This is an encouraging indication that high-grade mineralization is continuing and can
be expanded upon in future drilling which is currently scheduled to resume in June. Assay
confirmation of these high-grade uranium intersections is expected ahead of the summer drilling
program. The Pike Zone target continues to expand and is now delivering excellent results at or near
the unconformity in multiple drillholes. We are very impressed with these results and the CanAlaska
team will now prepare for further delineation work through the summer."
Table 1 - WMA082-5 and WMA082-6 Radiometric Equivalent Uranium Grades
DDH
From
(m)
To
(m)
Length
(m)
5
Average Grade
(% eU
3
O
8
)
6
WMA082-5
1,2
804.3
808.8
4.5
1.40
Including
3
806.4
808.4
2.0
2.78
WMA082-5
1,2
812.4
812.9
0.5
0.13
WMA082-6
1,2
798.0
809.5
11.5
10.84
Including
4
799.1
808.6
9.5
12.99
WMA082-6
1,2
815.3
816.7
1.4
0.45
1
.
WMA082-5 and WMA082-6 were drilled at an azimuth of 295˚ with an inclination of -79.3˚, collared at 477,345 mE / 6,396,525 mN, 605 m
A.S.L. (UTM NAD83 Z13N) as daughter holes from WMA082.
2
.
Intersection interval is composited above a cut-off grade of 0.1% eU
3
O
8
with a maximum of 1.0 m of internal dilution.
3
.
Intersection interval is composited above a cut-off grade of 1.0% eU
3
O
8
with a maximum of 1.0 m of internal dilution.
4
.
Intersection interval is composited above a cut-off grade of 2.0% eU
3
O
8
with a maximum of 1.0 m of internal dilution.
5
.
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.
6
.
Radiometric equivalent ("eU
3
O
8
") derived from a calibrated gamma downhole probe.
Geochemical Sampling Procedures and Use of Radiometric Equivalent Grades
All drill core samples from the 2024 program will be 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:NHO3:HClO4) and
partial digestion (HNO3:HCl), boron by fusion, and U
3
O
8
wt% assay by ICP-OES using higher grade
standards. Assay samples are chosen based on downhole probing radiometric equivalent uranium
grades and scintillometer (SPP2 or CT007-M) peaks. Assay sample intervals comprise 0.3 - 0.8 metre
continuous half-core split samples over the mineralized interval. Select density samples, comprising 0.1
metre continuous whole core samples that are subsequently split and assayed, may be taken within the
mineralized interval. With all assay samples, one half of the split sample is retained and the other sent to
the SRC for analysis. The SRC is an ISO/IEC 17025/2005 and Standards Council of Canada certified
analytical laboratory. Blanks, standard reference materials, and repeats are 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 drillholes are radiometrically logged using calibrated downhole
GeoVista NGRS and TGGS (Triple GM) gamma probes which collect continuous readings along the
length of the drillhole. 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. At extremely high
radiometric equivalent uranium grades, downhole gamma probes may become saturated, resulting in
the probe being overwhelmed, which in turn can create difficulties in accurately determining extremely
high-grade radiometric equivalent uranium grades, and a cap may be applied to the grade.
A 0.1%
eU
3
O
8
cut-off with a maximum internal dilution of 1 metre is used for compositing and reporting the data.
A 1.0% or 2.0% eU
3
O
8
cut-off with a maximum internal dilution of 1 metre is used for compositing and
reporting higher-grade sub-intervals. 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) (OTCQX: CVVUF) (FSE: DH7) holds interests in approximately
500,000 hectares (1,235,000 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 on the West McArthur JV project and Denison on the Moon Lake South
JV project 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 Person under National Instrument 43-101 Standards of Disclosure for Mineral Projects for
this news release is Nathan Bridge, MSc., P. Geo., Vice-President Exploration for CanAlaska Uranium
Ltd., who has reviewed and approved its contents.
On behalf of the Board of Directors
"Cory Belyk"
Cory Belyk, P.Geo., FGC
CEO, President and Director
CanAlaska Uranium Ltd.
Contacts:
Cory Belyk, CEO and President
Tel: +1.604.688.3211 x 138
Email:
General Enquiry
Tel: +1.604.688.3211
Email:
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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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