IsoEnergy Intersects 1.6% U3O8 over 10.5m in Drill Hole LE19-28, Including 12.6% U3O8 over 1.0m
October 1, 2019Vancouver, BC, October 1, 2019 – IsoEnergy Ltd. (“IsoEnergy” or the “Company”) (TSXV: ISO; OTCQX: ISENF) is pleased to provide final assay results from its recently completed summer drilling program on the Hurricane zone at the Larocque East property. Highlights include assay results from drill holes LE19-28 and LE19-29. The Hurricane zone is located on the Company’s 100% owned Larocque East property (the “Property”) in the Eastern Athabasca Basin of Saskatchewan (Figure 1).
Assay Highlights
- Chemical assays received for drill hole LE19-28, comprising 1.6% U3O8 over 10.5m, including 12.6% U3O8 over 1.0m
- Chemical assays received for drill hole LE19-29, comprising 4.6% U3O8 over 2.0m, including 16.6% U3O8 over 0.5m
Steve Blower, Vice President of Exploration commented: “These final assay results from our 17-hole summer drilling program provide further evidence of the strength and continuity of the Hurricane zone. Data compilation and interpretation is on-going and preparations are already underway for a winter drilling program that is planned to begin in January. I’m grateful for the excellent work completed by our Technical team and our primary contractors Bryson Drilling, Little Rock Enterprises and Discovery Int’l Geophysics.”
Craig Parry, CEO commented: “We are very pleased to report these strong final assay results from our summer drill program from Hurricane, the first high grade-uranium discovery globally for some years. The results continue to confirm the size and grade potential of the deposit and position IsoEnergy well for the next drill campaign. These results come at an important time for the uranium exploration and mining sector. The larger number of mine closures over the past two years have started to have a significant impact on the uranium market. After a hiatus of six months, in recent weeks we have seen a return of activity to the uranium spot market and the price has once again started rising, from $24.5 to $25.60/lb. over the past week. We expect significant renewed buying in the spot market over coming months and this has the potential to have further positive impact on the uranium price. Against this market backdrop we look forward to recommencing drilling and reporting further results from Hurricane during the coming winter.”
Drill Hole LE19-28 Assays (Section 4660E)
Drill hole LE19-28 (Figures 2 and 3) was completed 25m to the east of the LE19-16A section. LE19-28 intersected a 10.5m interval (321.0-331.5m) of strong uranium mineralization that averages 1.6% U3O8 and includes a 1.0m subinterval that averages 12.6% U3O8. Mineralization straddles the sub-Athabasca unconformity. Drill hole LE19-28 is the only drill hole completed on this section to date, and therefore the zone is wide open for expansion.
Drill Hole LE19-29 Mineralization (Section 4610E)
Completed on section 4610E, 25m west of the LE19-16A section, drill hole LE19-29 (Figures 2 and 4) intersected a 2.0m interval (337.5-339.5m) of strong uranium mineralization that averages 4.6% U3O8 and includes a 0.5m subinterval that averages 16.6% U3O8. The drill hole is interpreted to have over-shot the strongest part of the Hurricane zone mineralization and the zone is wide open for expansion to the north on this section.
Next Steps
With the receipt of final assays, data compilation and interpretation are well underway. Plans are being made for a large winter drilling program expected to begin in January, 2020, with winter road preparation beginning in December, 2019. Winter drilling in 2020 is likely to have two objectives; (1) complete sections and in-fill large gaps in the current footprint, and (2) extend the Hurricane zone strike length to the east with the aid of geophysical targets generated by the recently completed DC-Resistivity geophysical survey.
Table 1 – 2019 Hurricane Zone Intersections
| Hole-ID | From (m) | To (m) | Length (m) | Radioactivity1,2 (CPS) | Chemical Assays | Location | |||
| U3O8 (%) | Ni (%) | Co (%) | |||||||
| LE19-023 | 316.5 | 320.0 | 3.5 | >1,000 | 0.2 | 0.1 | 0.2 | Section 4560E | |
| and | 326.5 | 330.0 | 3.5 | >1,000 | 10.4 | 0.8 | 0.0 | ||
| LE19-033 | 324.0 | 324.5 | 0.5 | >1,000 | 0.2 | 0.1 | 0.0 | Section 4560E | |
| and | 326.5 | 329.5 | 3.0 | >1,000 | 2.7 | 2.3 | 0.0 | ||
| LE19-043 | 329.0 | 329.5 | 0.5 | >1,000 | 0.1 | 0.0 | 0.0 | Section 4560E | |
| 333.0 | 333.5 | 0.5 | >1,000 | 0.4 | 0.2 | 0.0 | |||
| LE19-053 | No significantly elevated radioactivity | Section 4560E | |||||||
| LE19-063 | 328.0 | 330.0 | 2.0 | >1,000 | 0.4 | 0.1 | 0.1 | Section 4585E | |
| and | 332.0 | 336.0 | 4.0 | >5,000 | 3.8 | 1.1 | 0.0 | ||
| LE19-073 | 325.0 | 331.0 | 6.0 | >1,000 | 0.4 | 0.8 | 1.4 | Section 4585E | |
| incl. | 328.0 | 328.5 | 0.5 | >5,000 | 1.0 | 4.9 | 9.3 | ||
| LE19-083 | 326.5 | 327.0 | 0.5 | >1,000 | 0.4 | 0.1 | 0.1 | Section 4535E | |
| and | 333.0 | 336.5 | 3.5 | >1,000 | 0.8 | 1.5 | 0.4 | ||
| incl. | 335.5 | 336.0 | 0.5 | >10,000 | 3.7 | 8.3 | 1.3 | ||
| LE19-093 | 325.0 | 329.5 | 4.5 | >1,000 | 4.2 | 1.1 | 0.8 | Section 4535E | |
| LE19-103 | 331.5 | 333.0 | 1.5 | >1,000 | 0.6 | 1.7 | 1.9 | Section 4535E | |
| LE19-113 | 333.0 | 333.5 | 0.5 | >5,000 | 2.1 | 0.1 | 0.1 | Section 4485E | |
| LE19-123 | 320.5 | 329.0 | 8.5 | >1,000 | 3.2 | 2.1 | 0.2 | Section 4485E | |
| LE19-133 | 320.0 | 320.5 | 0.5 | >1,000 | 0.2 | 0.0 | 0.0 | Section 4635E | |
| and | 321.5 | 324.0 | 2.5 | >1,000 | 0.6 | 0.2 | 0.5 | ||
| incl. | 322.5 | 323.0 | 0.5 | >10,000 | 1.6 | 0.4 | 1.1 | ||
| LE19-14B3 | 323.0 | 325.0 | 2.0 | >1,000 | 0.2 | 0.0 | 0.1 | Section 4535E | |
| and | 327.5 | 331.0 | 3.5 | >1,000 | 0.3 | 0.3 | 0.7 | ||
| LE19-153 | No significantly elevated radioactivity | Section 4735E | |||||||
| LE19-16A3 | 315.5 | 322.5 | 7.0 | >1,000 | 5.4 | 0.7 | 0.1 | Section 4635E | |
| incl. | 318.0 | 320.0 | 2.0 | >10,000 | 15.9 | 1.4 | 0.1 | ||
| LE19-173 | No significantly elevated radioactivity | Section 4635E | |||||||
| LE19-183 | 323.0 | 326.0 | 3.0 | >1,000 | 1.5 | 0.1 | 0.1 | Section 4735E | |
| incl. | 325.0 | 325.5 | 0.5 | >10,000 | 6.0 | 0.1 | 0.1 | ||
| LE19-18C13,5 | 261.0 | 266.0 | 5.0 | >1,000 | 1.2 | 0.0 | 0.0 | Section 4735E | |
| incl. | 261.5 | 262.0 | 0.5 | >10,000 | 3.9 | 0.0 | 0.0 | ||
| LE19-193 | No significantly elevated radioactivity | Section 4985E | |||||||
| LE19-203 | No significantly elevated radioactivity | Section 4735E | |||||||
| LE19-213 | No significantly elevated radioactivity | Section 4985E | |||||||
| LE19-223 | 326.5 | 327.0 | 0.5 | 1,000 | 0.1 | 0.0 | 0.0 | Section 4985E | |
| LE19-233 | 321.0 | 322.0 | 1.0 | >1,000 | 2.3 | 0.1 | 0.1 | Section 4735E | |
| incl. | 321.0 | 321.5 | 0.5 | >10,000 | 3.9 | 0.1 | 0.1 | ||
| and | 325.5 | 326.0 | 0.5 | >1,000 | 0.3 | 0.0 | 0.0 | ||
| LE19-243 | No significantly elevated radioactivity | Section 4735E | |||||||
| LE19-253 | 323.5 | 324.0 | 0.5 | >1,000 | 1.8 | 0.0 | 0.2 | Section 4685E | |
| and | 331.5 | 333.0 | 1.5 | >1,000 | 0.5 | 0.6 | 0.0 | ||
| incl. | 332.5 | 333.0 | 0.5 | >5,000 | 0.9 | 1.2 | 0.0 | ||
| LE19-263 | No significantly elevated radioactivity | Section 5185E | |||||||
| LE19-27A3 | No significantly elevated radioactivity | Section 4610E | |||||||
| LE19-284 | 321.0 | 331.5 | 10.5 | >1,000 | 1.6 | 0.3 | 0.0 | Section 4660E | |
| Incl. | 322.0 | 322.5 | 0.5 | >5,000 | 1.3 | 0.1 | 0.1 | ||
| and incl. | 326.5 | 327.0 | 0.5 | >5,000 | 1.0 | 0.0 | 0.0 | ||
| and incl. | 329.5 | 331.5 | 2.0 | >5,000 | 7.1 | 1.3 | 0.0 | ||
| incl. | 330.5 | 331.5 | 1.0 | >20,000 | 12.6 | 2.1 | 0.0 | ||
| LE19-294 | 337.5 | 339.5 | 2.0 | >1,000 | 4.6 | 0.2 | 0.1 | Section 4610E | |
| incl. | 338.5 | 339.5 | 1.0 | >5,000 | 8.7 | 0.3 | 0.2 | ||
| incl. | 338.5 | 339.0 | 0.5 | >20,000 | 16.6 | 0.5 | 0.3 | ||
| 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. Radioactivity and chemical assays previously disclosed 4. Radioactivity previously disclosed 5. Collared 59m down-hole in LE19-18 |
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Figure 1 –Larocque East Property Map
Figure 2 – Drill Hole Location Map
Figure 3 – Cross Section 4660E
Figure 4 – Cross Section 4610E
The Larocque East Property and the Hurricane Zone
The 100% owned Property consists of 20 mineral claims totaling 8,371ha and is not encumbered by any royalties or other interests. Larocque East is immediately adjacent to the north end of IsoEnergy’s Geiger property and is 35 kilometres northwest of Orano Canada’s McClean Lake uranium mine and mill.
Along with other target areas, the 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.’s neighbouring property to the southwest of Larocque East. The Hurricane zone was discovered in July, 2018 and was followed up with a 12-hole drilling campaign in the winter of 2019 and a recently completed 17-hole summer drilling campaign. Dimensions are currently 500m along-strike, 40m wide and up to 10m thick. The zone is open for expansion along-strike and on most sections. Mineralization is polymetallic and commonly straddles the sub-Athabasca unconformity 320m below surface. 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 7.0 metres 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 major uranium deposits in the eastern Athabasca Basin. Importantly, the sandstone cover on the Property is thin, ranging between 140 metres and 330 metres in previous drilling. In addition to the Hurricane zone discovery, four historical drill holes have intersected weak uranium mineralization at other locations on the Property to date.
Qualified Person Statement
The scientific and technical information contained in this news release was prepared by Andy Carmichael, P.Geo., IsoEnergy’s Senior Geologist, who is a “Qualified Person” (as defined in NI 43-101 – Standards of Disclosure for Mineral Projects). Mr. Carmichael has verified the data disclosed. As mineralized drill holes are oriented very steeply (-80 to -90 degrees) into a zone of mineralization that is interpreted to be horizontal, the true thickness of the intersections is expected to be greater than or equal to 90% of the core lengths. This news release refers to properties other than those in which the Company has an interest. Mineralization on those other properties is not necessarily indicative of mineralization on the Company’s properties. For additional information regarding the Company’s Larocque East Project, including its quality assurance and quality control procedures, please see the Technical Report dated effective May 15, 2019 on the Company’s profile at www.sedar.com.
About IsoEnergy
IsoEnergy is a well-funded uranium exploration and development company with a portfolio of prospective projects in the eastern Athabasca Basin in Saskatchewan, Canada and a historic inferred mineral resource estimate at the Mountain Lake uranium deposit in Nunavut. IsoEnergy is led by a Board and Management team with a track record of success in uranium exploration, development and operations. The Company was founded and is supported by the team at its major shareholder, NexGen Energy Ltd.
Craig Parry
Chief Executive Officer
IsoEnergy Ltd.
+1 778 379 3211
cparry@isoenergy.ca www.isoenergy.ca
Investor Relations
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+1 604 684 6730
iso@kincommunications.com
www.isoenergy.ca
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