IsoEnergy Reports Final Chemical Assays From 2021 Drilling at Hurricane Zone
IsoEnergy Reports Final Chemical Assays From 2021 Drilling at
Hurricane Zone
Saskatoon, SK, February 3, 2022 – IsoEnergy Ltd. (“IsoEnergy” or the “Company”) (TSXV: ISO; OTCQX: ISENF)
is pleased to announce the final assay results from its successful summer 2021 drilling at the Hurricane zone.
Hurricane is a high -grade uranium zone located on the Company’s 100% owned Larocque East property (the
“Property”) in the Eastern Athabasca Basin of Saskatchewan.
Highlights:
• 6.5m averaging 20.4% U 3O8 in southern expansion drill hole LE21 -107, including 3.5m averaging
34.5% U3O8
• 7.5m averaging 4.5% U3O8 in southern expansion drill hole LE21-87A
• Mineralization in drill hole LE21-101 of 0.5m at 3.1% U3O8 confirms continued expansion potential
Table 1 – Summer 2021 Drilling Program Results
Radioactivity1,2
(CPS) U3O8 (%) Ni (%)
LE21-783,5 Abandoned before target Section 4460E
LE21-78C15 248.5 260.5 12.0 >500 5.2 1.1 Section 4460E
incl. 253.0 254.0 1.0 >5,000 1.5 2.3
and incl. 254.5 255.0 0.5 >5,000 1.7 0.3
and incl. 257.5 259.5 2.0 >30,000 27.6 3.6
and incl. 260.0 260.5 0.5 >5,000 1.9 0.1
and 266.0 266.5 0.5 >5,000 1.9 0.7
LE21-805 325.0 325.5 0.5 >500 0.1 0.0 Section 4435E
and 326.0 329.5 3.5 >500 2.3 0.1
incl. 326.0 328.0 2.0 >5,000 4.0 0.2
incl. 326.5 327.0 0.5 >30,000 9.0 0.4
LE21-825 326.5 327.0 0.5 >500 0.2 0.1 Section 4485E
and 328.5 333.0 4.5 >500 0.9 7.2
incl. 331.0 332.0 1.0 >5,000 1.4 16.2
LE21-845 326.5 329.5 3.0 >500 0.5 0.6 Section 4435E
incl. 328.0 328.5 0.5 >5,000 1.9 0.2
LE21-854 321.5 322.5 1.0 >500 0.2 0.2 Section 4460E
and 327.0 327.5 0.5 >500 0.2 0.1
LE21-874 Abandoned before target Section 4460E
Hole
ID
From
(m)
To
(m)
Length
(m)
Chemical Assays Location
Notes:
1. Radioactivity is total gamma from drill core measured with an RS-125 hand-held spectrometer.
2. Measurements of total gamma cps on drill core are an indication of uranium content but may not correlate with uranium chemical
assays.
3. LE21-78C1 is a wedged off-cut LE21-78 at 70m
4. Radioactivity previously disclosed
5. Radioactivity and chemical assays previously disclosed
Tim Gabruch, President and Chief Executive Officer commented: “Following the completion of our 2021 drilling
program this past November we are pleased to release these final assay results. These high-grade results have
supported the further growth of the Hurricane zone , and hole LE21- 101 has highlighted the continued
prospectivity of Hurricane . Our winter drilling program is now underway, and we will focus our expansion
drilling on the corridor highlighted by this hole. We are looking forward to 2022 being an exciting year for
IsoEnergy as we aim to continue to expand the Hurricane zone and also direct increasing attention to
exploration drilling to the eastern end of the Larocque East property. Nuclear energy is gaining increased global
support for the important role it has to play in providing clean energy. This underscores the importance of work
Radioactivity1,2
(CPS) U3O8 (%) Ni (%)
LE21-87A4 331.0 338.5 7.5 >500 4.5 8.5 Section 4460E
incl. 331.5 332.0 0.5 >5,000 1.5 16.1
and incl. 333.5 338.0 4.5 >5,000 6.8 8.1
incl. 334.0 335.0 1.0 >20,000 8.1 9.4
and incl. 336.0 338.0 2.0 >20,000 9.2 8.8
LE21-894 No significant mineralization Section 4885E
LE21-914 336.0 341.0 5.0 >500 0.7 1.4 Section 4510E
incl. 337.5 338.0 0.5 >5,000 1.7 0.6
and incl. 338.5 339.0 0.5 >5,000 1.5 0.9
LE21-934 316.0 316.5 0.5 >500 0.1 0.0 Section 4410E
LE21-954 Abandoned before target Section 4885E
LE21-95A4 No significant mineralization Section 4885E
LE21-974 Abandoned before target Section 4435E
LE21-97A4 No significant mineralization Section 4435E
LE21-1004 No significant mineralization Section 4635E
LE21-1014 324.5 329.0 4.5 >500 0.6 0.2 Section 4785E
incl. 327.5 328.0 0.5 >5,000 3.1 0.7
LE21-1034 330.0 330.5 0.5 >500 1.1 1.1 Section 4485E
and 331.0 331.5 0.5 >500 0.1 0.3
and 334.5 338.5 4.0 >500 0.9 0.5
incl. 337.5 338.0 0.5 >5,000 4.7 2.9
LE21-1054 339.5 340.0 0.5 >500 0.1 0.1 Section 4535E
LE21-1074 325.5 332.0 6.5 >500 20.4 7.9 Section 4485E
incl. 326.0 326.5 0.5 >10,000 6.6 2.5
and incl. 327.5 331.0 3.5 >30,000 34.5 11.5
LocationHole
ID
From
(m)
To
(m)
Length
(m)
Chemical Assays
being done to uncover future uranium supply sources, such as Hurricane, to fuel these growing nuclear energy
demands.”
Andy Carmichael, Vice President of Exploration commented: “ The strong mineralization intersected by LE21 -
107 emphasizes the J-L fault corridor’s potential to host additional uranium mineralization and, with LE21-78C1
and LE21-87A, defines a new zone of strong mineralization on the south side of Hurricane. The results of LE21-
101 indicate the J-L fault corridor is mineralized 300m east of LE21 -107. The primary objective of ongoing
winter 2022 drilling at Hurricane is to systematically test the eastern portion of this c orridor for significant
mineralization.”
Southern Expansion
LE21-107 (Section 4485E)
LE21-107 targeted the centre of a 26m gap between previously reported drill holes LE20 -71 (2.4% U3O8 over
2.0m) and LE21-82 (4.5m averaging 0.9% U3O8 including 1.0m 1.4% U3O8). LE21-107 intersected 6.5m averaging
20.4% U3O8 from 325.5 to 332.0m, including 3.5m averaging 34.5% U3O8 from 327.5 to 331.0m. Figures 2 and
3 show the location of the drill hole in plan and section view, respectively.
LE21-87A (Section 4460E)
LE21-87A intersected 7.5m of uranium mineralization from 331.0 to 338.5m averaging 4.5% U 3O8 including
2.0m averaging 9.2% U3O8 from 336.0m to 338.0m and including 1.0m averaging 8.1% U 3O8 from 334.0m to
335.0m. LE21-87A expanded the Hurricane zone 17m south of drill hole LE21-78C1 (12.0m averaging 5.2% U3O8
including 2.0m averaging 27.6% U3O8), increasing width of the mineralized footprint to at least 86m on section
4460E. Figures 2 and 4 show the location of the drill hole in plan and section view, respectively.
LE21-103 (Section 4485E)
Drill hole LE21-103 targeted the unconformity 31m south of previously reported drill hole LE21 -82. LE21-103
intersected 4.0m of uranium mineralization from 334.5m to 338.5m averaging 0.9% U3O8 which includes 0.5m
averaging 4.7% U3O8 from 337.5 to 338.0m. LE21-103 expanded the Hurricane zone 31m to the south and the
mineralized footprint is now at least 125m wid e on section 4485E. Figures 2 and 3 show the dr ill hole in plan
and section view, respectively.
LE21-91 (Section 4510E)
Drill hole LE21-91 was completed to test for easterly extensions of mineralization intersected by earlier 2021
drill holes and targeted the unconformity 28m northeast of LE21 -82 and 47m east of LE21 -78C1. LE21- 91
intersected 5.0m averaging 0.7% U3O8 from 336.0m to 341.0m. Figures 2 and 5 show the drill hole location in
plan and section view, respectively.
LE21-105 (Section 4535E)
Drill hole LE21-105 was completed to test for easterly extensions of mineralization intersected by LE21 -91.
LE21-105 reached the unconformity 21m east of LE21 -91 at a depth of 341.5m, intersecting 0.5m averaging
0.1% U3O8 from 339.5 to 340.0m. Figure 2 shows the drill hole in plan view.
Continued Growth Potential
LE21-101 (Section 4785E)
Drill hole LE21 -101 tested the prospective graphitic structural corridor bounded by the J - and L-Faults in an
area that has seen limited drilling. The drill hole intersected 4.5m of uranium mineralization from 324.5 to
329.0m averaging 0.6% U3O8 including 0.5m averaging 3.1% U3O8 from 327.5 to 328.0m. Figures 2 and 6 show
the drill hole in plan and section view, respectively.
Defining the Zone
LE21-85 (Section 4460E)
Drill hole LE21-85 was drilled to follow up mineralization intersected by previously reported drill holes LE20-57
(11.7% U 3O8 over 10.0m) and LE20 -38 (2.0% U 3O8 over 7.5m). The drill hole intersected an upper zone of
uranium averaging 0.2% U3O8 over 1.0m from 321.5m to 322.5m above a lower zone averaging 0.2% U3O8 over
0.5m 327.0m to 327.5m. Figures 2 and 4 show the location of the drill hole in plan and section view,
respectively.
LE21-93 (Section 4435E)
LE21-93 was drilled to expand mineralization to the north on section 4410E and targeted the unconformity
29m north of previously reported drill hole LE20-42 (0.4% U3O8 over 3.0m). The drill hole intersected 0.1% U3O8
over 0.5m beginning at 316.0m, 13m above the unconformity. The zone of significant mineralization is
interpreted to be closed off to the north on section 4435E. Figure 2 shows the location of drill hole LE21 -93 in
plan view.
The Larocque East Property and the Hurricane Zone
The 100% owned Larocque East property consists of 33 mineral claims totaling 16,780ha. Two of the project’s
claims distal to the Hurricane zone are subject to a 2% Net Smelter Returns Royalty of which 1% may be bought
back for $1 million at IsoEne rgy’s discretion . Larocque East is immediately adjacent to the north end of
IsoEnergy’s Geiger property and is 35km northwest of Orano Canada’s McClean Lake uranium mine and mill.
Along with other target areas, the Larocque East Property covers a 15 -kilometre-long northeast extension of
the Larocque Lake conductor system; a trend of graphitic metasedimentary basement rocks that is associated
with significant uranium mineralization at the Hurricane zone, and in several occurrences on Cameco Corp. and
Orano C anada Inc.’s neighbouring property to the southwest of Larocque East . The Hurricane zone was
discovered in July 2018 and was followed up with 29 drill holes in 2019, 48 drill holes in 2020, and 16 drill holes
in 2021. Dimensions are currently 375m along-strike, up to 125m wide, and up to 12m thick. The zone is open
for expansion along -strike to the east and to the north and south on some sections . Mineralization is
polymetallic and commonly straddles the sub -Athabasca unconformity 320m below surface . The best
intersection to date is 38.8% U 3O8 over 7.5m in drill hole LE20 -76. Drilling at Cameco Corp.’s Larocque Lake
zone on the neighbouring property to the southwest has returned historical intersections of up to 29.9%
U3O8 over 7.0m in drill hole Q22-040. Like the nearby Geiger property, Larocque East is located adjacent to the
Wollaston-Mudjatik transition zone - a major crustal suture related to most of the uranium deposits in the
eastern Athabasca Basin. Importantly, the sandstone cover on the Property is thin, ranging between 140m and
450m in previous drilling.
Figure 1 – Larocque East Property Map
Figure 2 – Hurricane Zone Drill Hole Location Map
Figure 3 – Section 4485E
Figure 4 – Section 4460E
Figure 5 – Section 4510E