Copper Lake Resources Ltd. (TSX-V: CPL, Frankfurt: WOI, OTC: WTCZF)
(“Copper Lake” or the “Company”) is pleased to provide the
following update on diamond drilling, recently completed on its
Marshall Lake copper-zinc-silver VMS property, located in
Northwestern Ontario.
Two prime target areas were the focus of diamond
drilling during the drill program, including a prominent MT
(magneto-telluric) conductor, situated proximal and below
high-grade copper-zinc-silver stringer mineralization, known as the
Deep EM target. The second drill target was an EM conductor
situated 2 km to the east of the Billiton deposit.
Terry MacDonald, CEO commented “At 800 metres,
this was the deepest hole ever drilled at Marshall Lake. At depths
between 400 and 800 metres, we encountered almost 280 metres of
strong to very strong alteration, which is very encouraging as it
demonstrates the presence of a large VMS proximal hydrothermal
alteration system containing copper and zinc sulphides. We are
hopeful that the pending results of the borehole Pulse EM survey
will indicate the presence of potentially commercial scale massive
Cu-Zn-Ag-Au sulphides in this area.”
MT TARGET 1
MT Conductor 1 comprised the highest priority
conductor for drilling, given its close association with bore-hole
electromagnetic (BHEM) conductors and associated high-grade
stringer mineralization situated 300 metres below surface
(collectively the Deep EM Target).
The Deep EM Target was drilled by the Company in
2021 and 2022, yielding high-grade intercepts including:
- 8.13% Cu, 7.26% Zn, 240.80 g/t Ag & 0.33 g/t Au
over 2.11 metres1
- 5.81 % Cu, 7.32% Zn, 171.20 g/t Ag & 0.02 g/t Au
over 1.95 metres1
- 2.37% Cu, 1.75% Zn, 413.15 g/t Ag & 0.37 g/t Au
over 6.00 metres1
The goal of the MT survey was to define
conductors reflecting extensions to such stringer and/or massive
sulphide mineralization below the 300-metre level and to the MT
survey depth capability of up to 1000 metres.
Hole MAR-24-02 was drilled through the heart of
MT Conductor 1 to a final depth of 802 metres (Figure 1). Several
broad intervals of hydrothermal alteration typical of and
accompanying VMS deposit mineralization were encountered in the
drill hole, as tabled below:
From(m) |
To (m) |
Width (m) |
Alteration |
Mineralization |
160.0 |
180.0 |
20.0 |
Strong to very strong sericite-biotite |
Trace very to fine grained pyrite |
208.0 |
215.0 |
7.0 |
Strong biotite-sericite |
1-2 % pyrite and sphalerite best interval of 5-7% sphalerite over
1.0 metre |
392.0 |
492.0 |
100.0 |
Strong to very strong biotite-chlorite-sericite locally amphibole
alteration and silica flooding with sulphides |
1-2% pyrite & sphalerite best interval of 10% pyrite and 4%
sphalerite over 1.0 metre |
12.8 |
581.0 |
68.2 |
Strong to very strong biotite-chlorite-sericite silica flooding
accompanies sulphides locally amphibole alteration |
1-2% pyrite, sphalerite & chalcopyrite best interval of 3-5%
sphalerite over 1.0 metre, 2.0% chalcopyrite over 1.0 metre |
691.5 |
802.0 |
110.5 |
Strong to very strong biotite-chlorite-silica silicification occurs
as rose petal alteration local amphibole alteration |
1-4% combined pyrite, pyrrhotite, sphalerite and chalcopyrite best
interval of 5-10% pyrite and sphalerite over 2.0 metres |
Five zones of moderate to very strong biotite,
chlorite, sericite and silicic (and locally amphibole alteration)
were intersected over widths ranging from 7.0 metres to 110.5
metres. The deeper intercepts over the intervals 392.0 to 492.0
metres, 512.8 to 581.0 metres and 691.5 to 799.4 metres are more
strongly altered compared to the shallower intercepts and contain
greater abundance of pyrrhotite, chalcopyrite and sphalerite. The
presence of long intercepts of strong alteration, containing
locally significant sulphides is encouraging and will require
additional diamond drilling in the search for potential massive
sulphide zones.
One hundred and fifty core samples of alteration
and mineralization were submitted to Agat Laboratories in Thunder
Bay, Ontario for analyses. Results will be released as they become
available.
Abitibi Geophysics is currently conducting a
borehole electromagnetic (BHEM) survey on MAR-24-02 to provide
directional information pointing to more conductive
sulphide-bearing material within this large VMS alteration halo. In
addition, two historic holes situated within a 300 metre radius
from MAR-24-02 (CML-93-10 and ML-95-16) will also be probed. These
two drill holes with lengths of 600 metres reported thick
intercepts of strong to intense hydrothermal alteration and
disseminated base-metal sulphides similar to that seen in
MAR-24-02, attesting to the large size of the VMS mineralizing
system.
The BHEM survey results should be available by
late April.
BUILD-UP CONDUCTOR TARGET
Another electromagnetic conductor, known as the
Build-Up Conductor, was fully defined in a recent large-loop
electromagnetic survey (LLEM) completed by Abitibi Geophysics. The
conductor, located in younger rocks, is approximately 2 kilometres
east of the Billiton deposit in an un-drilled area of the Marshall
Lake property. The conductor as modelled, has dimensions of 500
metres by 150 metres and has moderate strength conductance.
A single drill hole (MAR-24-01) was completed to
evaluate the conductor and was drilled to a final depth of 502
metres. The hole intersected a thick sequence of altered volcanic
rocks intruded by gabbro sills. Alteration in the volcanic and
intrusive lithotypes comprises weak to moderate chloritization,
silicification and potassic alteration in high-grade metamorphic
rocks.
Two mineralized zones were encountered: the
first from 240.0-260.0 metres and the second from 330.0-360.0
metres downhole, respectively. Both contained patchy pyrrhotite,
pyrite and magnetite, locally up to 10% in abundance. The presence
of the magnetite as well as pyrrhotite and pyrite are believed to
explain the presence of the conductor. Apart from trace to minor
chalcopyrite, no significant base-metal mineralization was observed
in the drill hole.
Sampling of the altered and mineralized sections
of the core was recently completed with subsequent shipping of the
samples to Agat Laboratories in Thunder Bay. Results will be
released as they become available.
1Analyses completed by
Activation Laboratories in Ancaster, Ontario utilizing the 1A2 –
Fire Assay, AA Finish, 1H INAA (INAAGEO), Total Digestion (Total)
and the UT-7, Sodium Peroxide Fusion (ICP & ICP MS) analytical
packages
QUALIFIED PERSON
Donald Hoy, M. Sc., P. Geo. Copper Lake’s Vice
President of Exploration, is the Qualified Person responsible for
the technical content contained in this news release.
ABOUT COPPER LAKE RESOURCES
Copper Lake Resources Ltd. is a publicly traded
Canadian mineral exploration and development company with interests
in two projects both located in Ontario.
www.copperlakeresources.com
The Marshall Lake high-grade
VMS copper, zinc, silver and gold project, comprises an area of
approximately 220 square km located 120 km north of Geraldton,
Ontario and is just 22 km north of the main CNR rail line. Copper
Lake has an 81.54% interest in the joint ventured property, which
consists of 233 claims and 52 mining leases. The project also
includes 148 claim cells staked in 2018 and 2020 that are 100%
owned and not subject to any royalties, which add approximately 30
square km to the original property.
The Marshall Lake project is located in the
traditional territories of the Aroland and Animbiigoo Zaagi igan
Anishinaabek (“AZA”) First Nations.
Copper Lake also has a 69.79% joint venture
interest in the Norton Lake nickel, copper,
cobalt, and palladium PGM property, located in the southern Ring of
Fire area, is approximately 100 km north of the Marshall Lake
Property. The Norton Lake property is located in the traditional
territories of the Eabametoong (“Fort Hope”) and Neskantaga First
Nations.
On behalf of the Board of
Directors,
Copper Lake Resources Ltd.Terry
MacDonald, CEO(416) 561-3626tmacdonald@copperlakeresources.com
Neither the 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.
A photo accompanying this announcement is available at
https://www.globenewswire.com/NewsRoom/AttachmentNg/553766af-8cf9-447a-8602-6e64049a92c3
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