Preliminary Ground Truthing of Hurricane Intrusive Zone Confirms Widespread Copper and Gold Mineralization Six Kilometres Northeast of Agnico’s Upper Beaver Deposit
TSX-V:KLDC | US-OTC: KLKLF
KIRKLAND LAKE DISCOVERIES CORP.
25 Adelaide Street East, Suite 1400, Toronto, Ontario, M5C 3A1 | kirklandlakediscoveries.com | +1 416 363 0317
Preliminary Ground Truthing of Hurricane Intrusive Zone Confirms
Widespread Copper and Gold Mineralization Six Kilometres Northeast
of Agnico’s Upper Beaver Deposit
- Kirkland Lake Discoveries’ ALS GoldSpot MPASS geophysics survey identifies a
potential intrusive complex with similarities to Agnico’s Upper Beaver deposit six
kilometres to the southwest
- A ground-truthing exercise conducted to interrogate the results of the geophysical
interpretation confirms the presence of various intrusive rocks, associated alteration, and
mineralization
- The Company reviewed public datasets of historical work programs discovering relevant
work which supports the Company’s findings
- Targeted prospecting of select areas reveals widespread copper and gold
- Next exploration steps include ongoing compilation, targeting, drilling, and follow-up field
work for Q1/Q2 of 2024
- Ongoing analysis of the Hurricane intrusive zone petrography, mineralogy, structure, and
geochemistry will determine similarities and differences to the Upper Beaver deposit
- Summer 2023 drilling at Goodfish Kirana extends mineralization at the Jo Zone downdip
by ~75 m to 375m vertical depth
Toronto, November 23, 2023 – Kirkland Lake Discoveries Corp. (TSX-V: KLDC | US-OTC:
KLKLF) (“KLDC” or the “Company”) is pleased to provide results from the summer and fall
exploration programs. Airborne geophysics, mapping, and prospecting on the Lucky Strike
property outlined the seven-kilometre-long by three-kilometre-wide prospective Hurricane
intrusive zone. Follow-up mapping and sampling returned gold and copper grab samples up to
4.25 g/t Au and 0.95% Cu. Widespread sericite, epidote +/- potassic alteration, and quartz
stockwork veining coupled with pyrite, +/- chalcopyrite mineralization is common throughout.
The geophysical signature, geology, mineralization, and alteration bear similarities to the
intrusion-related Au-Cu system that hosts Agnico Eagle Mines Limited (Agnico) Upper Beaver
deposit which is six kilometres southeast of the Hurricane intrusive zone.
“This was an incredibly productive field season for the Company. We had multiple teams of
prospectors, mappers, and samplers traversing the recently acquired ground, advancing our
knowledge and understanding of the Lucky Strike,” Founder, Director, and CEO Danièle
Spethmann commented. “Whiskey Jack is a new showing on the Hurricane intrusive zone that
has the geological and structural features of a potential feeder zone for the alteration and
mineralization that occurs in the area. Copper and gold assays at Whiskey Jack, Jensen,
Vallillee, and Norwood showings indicate that mineralization is widespread over this newly
identified regional showing. We look forward to following up these results with more detailed
analysis and drilling.”
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Geophysical Resemblance to Upper Beaver Deposit
Interpretation of the magnetic survey flown in June 2023 identified a ring-shaped magnetic
feature similar to the one found at the Upper Beaver deposit. These magnetic features are
reflected by mafic syenite in contact with mafic volcanic rocks (Figure 1).
Figure 1 –First vertical derivative comparison between Hurricane intrusive zone and Upper Beaver deposit.
ALS GoldSpot's additional interpretation of the M-PASS heliborne survey data over Lucky Strike and
of publicly available time-domain electromagnetics (TDEM) dataset, outlines a northeast-trending
corridor that envelopes the Upper Beaver deposit, the historical Copper King mine, and the
Hurricane intrusive zone gold-copper showings (Figure 2). The Hurricane intrusive zone lies at the
intersection of this northeast-trending TDEM corridor and the Misema-Mist Lake and Mulven
fault systems. The intersection of the Cadillac-Larder Lake deformation zone with the network of
high-angle NE-trending cross faults acts as conduits for gold endowments in the Larder Lake
area1.
1 Haiming Liu, Jeff Harris, Ross Sherlock, Pouran Behnia, Eric Grunsky, Mostafa Naghizadeh, Kate Rubingh, Györgyi Tuba, Eric
Roots, Graham Hill 2023: Mineral prospectivity mapping using machine learning techniques for gold exploration in the Larder Lake
area, Ontario, Canada, Journal of Geochemical Exploration, Volume 253
3
i
Figure 2. The Hurricane intrusive zone at the intersection of the NE trending TDEM corridor and the Misema-Mist Lake and Mulven
fault system.
Initial Ground Truthing Confirms Highly Prospective Target at Hurricane
In late July, Lindsay Hall, Chief Geologist of ALS GoldSpot, a structural geologist and Abitibi
expert familiar with the Upper Beaver deposit, led a mapping and prospecting team to ground
truth the interpretations from the geophysical survey. Historical work, combined with anomalous
till samples of 60, 65, 67, 88, and 98 gold grains, collected by New Found Gold in 2020 within
and surrounding the intrusive anomaly, made this a priority area of interest. Initial findings
indicate that the Hurricane area contains exceptional alteration and mineralization of stockwork
fractured porphyritic syenites, and epidote, potassium-feldspar-altered mafic volcanics with
arsenopyrite (Figures 3 and 4).
Figure 3: Crowded porphyritic ‘syenite’ with stockwork quartz.
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Figure 4 – Epidote, potassium-feldspar-altered, and arsenopyrite mineralized mafic volcanic sample.
MERC Research Indicates Structures Are Deep-Seated
In 2017 and 2018, an aeromagnetic, magnetotelluric, and seismic transect across the Kirkland
Lake-Larder Lake greenstone belt was completed by Mineral Exploration Research Centre
(MERC). Interpretation by MERC demonstrate that the Hurricane intrusive zone corridor lies
within a strongly conductive response similar to the Cadillac-Larder Lake deformation zone
(Figure 5) 2.
Figure 5. MERC transect (left) and magnetotelluric cross-section of the Larder Lake transect in the Abitibi greenstone belt.
2 https://metalearth.geohub.laurentian.ca/documents/bc64905cb70d4c098d5f5d3c1e5b2f13/explore
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LNSZ Lincoln Nipissing Shear Zone; CLDZ Cadillac Larder deformation zone; BRG Blake River Group; MLF Mulven/Missema Lake
fault.
Historical Work Review Confirms Prospectivity
Historical exploration work in the Hurricane area identified six showings with varying degrees of
copper and gold mineralization.
Whiskey Jack East (formerly MacDonald):
The Whiskey Jack East showing is a syenite with associated feldspar porphyry with sericitic and
fuchsitic alteration. Although numerous old workings (1920s) were discovered during the recent
prospecting program, samples assayed returned limited results, none exceeding 0.4g/t Au,
despite being the most altered rocks observed on the property.
Norwood:
The Norwood showing is located within a magnetic high and exhibits strong sericite alteration on
the margins of quartz vein sets. There are two distinct, parallel EW-trending vein sets with
intermittent intensity of shearing within this EW zone. In 1936, Norwood Kirkland Gold Mines
identified multiple gold-bearing veins with samples from trenches grading as high as 96.53 g/t
Au (Figure 6). In 2009, Wallbridge conducted a limited 997.61 m drill program (eight holes).
Three of these holes were at the Norwood showing, two at Vallillee showing, one at the Wood
showing, and two regional targets. 3 The KLDC sampling returned gold mineralization including
4.25 g/t Au, 3.81 g/t Au, and 3.32 g/t Au (see Table 1).
Figure 6 - Kirkland Norwood Gold Mines Ltd. promotional sketch from 1936
Jensen:
All samples taken by the KLDC team at and around the Jensen showing, a 1930s pit, returned
copper and gold assays with values up to 0.76 g/t Au with 0.69% Cu. These values are also
correlative with elevated bismuth supporting an epithermal model of the mineralization. Field
observations by KLDC geologists at Jensen are similar to observations made at Upper Beaver,
including the quartz veining found in the syenite with distinct quartz-hematite potassium feldspar
alteration along vein margins.
3 http://www.geologyontario.mndmf.gov.on.ca/mndmfiles/afri/data/imaging/20000005216/20007459.pdf
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Vallillee:
A 2006 grab sample of altered syenite with minor pyrite and no quartz veining assayed 128 g/t
Au. This highly anomalous sample was followed up in 2007 with two x-ray diamond holes
totalling 104 feet. The first hole intersected high-grade gold including 13 g/t Au over 76 cm and 7
g/t Au over 91 cm. The second hole intersected anomalous gold concentrations, but no record
of sample intervals was found in the government reports3. Sampling by KLDC returned gold and
copper mineralization including 1.93 g/t Au with 0.73% Cu, 0.79 g/t Au with 0.63% Cu and 0.49
g/t Au with 0.73% Cu.
Flood:
A 1923 report by a prospector indicated that gold could be panned on the Macdonald, Wood,
and Flood showings on the Misema Lake Peninsula. He described a number of feldspar
porphyry (and presumable syenite) dikes that come together. In 1947, 1,088 m of drilling was
completed at an old shaft with reported trace gold results. KLDC sampling returned 0.76% Cu
and 0.95% Cu.
Wood:
The Wood showing (1920s) was drill tested by Wallbridge in 2009, southwest of the showing
targeting a strong chargeability anomaly, that is coincident with a strong magnetic signature.
The hole intersected gabbro intruded by a feldspar porphyry and a syenite sequence, and no
significant mineralization was reported.
KLDC Concerted Prospecting and Mapping Reveals Prolific Copper and Gold
Mineralization
From August to November, systematic mapping and prospecting was undertaken across the
Hurricane intrusive zone, structurally prepared felsic to intermediate intrusions between the
Mulven and Misema Mist Lake faults (Figure 7). Tightly spaced blocks of 50 m line spacing were
planned for prospectors to traverse systematically.
Figure 7 – Sample highlights from the summer and fall 2023 exploration program combined with interpreted structure and
interpreted lithology of the Hurricane intrusive zone.
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The results from this program suggest that the consistency of mineralization may indicates the
existence of an extensive Au-Cu intrusive system.
Whiskey Jack is a new showing discovered by the Company and is located west of the previous
named MacDonald showing and south of the Wood showing. It is located on an ESE-WSW
trending structure on the margin of a magnetic high, interpreted as the contact between mafic
volcanics and a syenite intrusion. The area exhibits very strong sericite and epidote alteration,
silicification, pyrite, and stockwork quartz veinlets possibly representing a skarnoid-style deposit
model (Figure 8). Grab samples have returned up to 0.13% Cu and 0.44 g/t Au. The structural
features of this intrusive zone are near vertical and indicate that they may be the conduits for
the alteration of the Hurricane intrusive zone.
Figure 8 – Grab sample from Whiskey Jack containing intense epidote alteration and well-developed stockwork veining containing
magnetite. The Whiskey Jack showing sits on an ESE-WSW trending almost vertical structure that appears to be a distinct conduit
for fluids.
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Table 1 – Highlighted grab* samples from 2023 exploration program to date.
*Grab samples are selected samples and are not necessarily representative of the mineralization hosted on the
property.
Planned Drilling and Future Exploration Work at Hurricane Intrusive Zone
A 4,000-m diamond drilling program is planned at the Hurricane intrusive zone for Q1 2024.
Emphasis of the drilling campaign will be to target all showings that have returned consistent
gold and copper values and to investigate the nature, significance, and extent of the associated
mineralized and widespread alteration haloes.
Twenty samples have been prepared for petrographic study to determine origin, mineral
content, and classification of rock types which will help to determine the conditions which
formed these rocks and will refine the geological model. A continuation of the concerted
prospecting program is planned for 2024.
Copper King E462698 Grab Sample 0.006 0.33%
Copper King E462699 Grab Sample 0.005 1.16%
Copper King E464263 Grab Sample 0.005 0.75%
Copper King E464264 Grab Sample 0.005 0.49%
Copper King E464266 Grab Sample 0.008 0.36%
Copper King E464267 Grab Sample 0.007 0.52%
Copper King L670252 Grab Sample 0.0025 0.37%
Copper King L670253 Grab Sample 0.0025 0.80%
Copper King L670254 Grab Sample 0.0025 1.01%
Goodfish Kirana E464273 Grab Sample 1.28 1.28%
Goodfish Kirana E464283 Grab Sample 0.157 0.29%
Hurricane E462661 Grab Sample 0.0025 0.76%
Hurricane E462668 Grab Sample 3.19 0.02%
Hurricane E462693 Grab Sample 1.93 0.73%
Hurricane E462694 Grab Sample 0.491 0.63%
Hurricane E462695 Grab Sample 0.787 0.54%
Hurricane E462696 Grab Sample 0.25 0.46%
Hurricane E462697 Grab Sample 0.469 0.71%
Hurricane E464275 Grab Sample 0.172 0.46%
Hurricane E464613 Grab Sample 1.31 0.01%
Hurricane E464616 Grab Sample 1.675 0.02%
Hurricane E464618 Grab Sample 1.35 0.01%
Hurricane E464622 Grab Sample 4.25 0.01%
Hurricane E464665 Grab Sample 0.0025 0.95%
Hurricane L670515 Grab Sample 0.328 0.39%
Hurricane L670517 Grab Sample 0.512 0.49%
Hurricane L670635 Grab Sample 3.32 0.00%
Hurricane L670643 Grab Sample 3.81 0.00%
Walsh/FP E464564 Grab Sample 156 0.01%
Walsh/FP E464640 Grab Sample 1.405 0.01%
Walsh/FP L902857 Grab Sample 6.46 0.00%
Walsh/FP L902858 Grab Sample 1.875 0.00%
Cu %Area Sample Number Point Type Au
ppm