MacDonald Mines Continues to Confirm IOCG Potential at the Alwyn Copper-Gold Trend, Sudbury, Ontario
December 05 2023 - 6:00AM
MacDonald Mines Exploration Ltd. (TSX-V: BMK, OTC:
MCDMF) (“MacDonald Mines” or the
“Company”) is pleased to announce the results from
its 1,206 meter drill program along the prospective McLaren Lake
Fault Zone (“MLFZ”) at the Alwyn Copper-Gold (“Cu-Au”) trend
(“Alwyn”), as well as the Glade Gold (“Au”) trend (“Glade”) located
on MacDonald Mines 100% owned’ SPJ Project near Sudbury, Ontario.
“We are extremely pleased with the results at Alwyn which
continue to confirm the potential of a robust mineral system
capable of forming IOCG or affiliated deposits at depth. Company
personnel are actively pursuing various options to prepare for a
follow-up drill program at Alwyn directed towards expanding Cu-Au
mineralization in the 102 Vein and testing the most favorable
geophysical targets at depth to the south-east” stated Mike
England, CEO of MacDonald Mines.
Highlights from 954 meters of drilling
in the Alwyn Cu-Au trend (see tables 1 and 2 and figure
1)
- Copper-gold mineralization confirmed in the Alwyn Trend over a
strike length of approximately 400 metres
- The Alwyn Cu-Au trend is part of the MacLaren Lake Fault Zone
(MLFZ)
- Other known centers of Cu-Au mineralization along the MLFZ
includes the Ashigami and Crerar showings respectively located 4.5
km and 9.5 km SE from the Alwyn prospect
- Confirmation that the Alwyn 102 Vein contained within a broader
halo of Cu-Au mineralization is extending at least 75 metres SE of
the historical Alwyn mine
- Near-surface intersection of 1.16% Cu and 1.64 g/t gold over
4.75 metres within a mineralization halo containing 0.47% Cu and
0.52 g/t gold and over 25 metres in AW-23-107 (see table 2)
- Located 30 metres away from the intersection of 1.07% Cu and
3.01 g/t gold over 4.2 metres in AW-22-102
- 1.36% Cu and 3.06 g/t gold over 0.90 metres associated with
garnet-amphibole alteration in AW-23-106 within a Cu-Au
mineralization halo containing 0.31% Cu and 0.31 g/t Au over 16.0
metres (see table 2)
- Zones of pervasive magnetite alteration with indications of Cu
mineralization in AW-23-110 identified in the Alwyn Cu-Au trend
(see figure 1)
- Magnetite alteration is indicative of mineral systems capable
of forming IOCG and affiliated deposits
- In AW-23-109 and AW-23-110, the zones of pervasive magnetite
alteration are located at the edge of aeromagnetic and gravity
highs
- This is supporting a possible relation between the geophysical
anomalies and magnetite and iron-rich alteration
- Magnetite is primarily disseminated in replacement fronts and
is also forming localized veins, and was observed down to
approximately 160 m vertical depth in AW-23-110
- Indications that parallel zones of Cu-Au mineralization exist
in the Alwyn Cu-Au trend
- AW-23-107 discovered a new zone of Cu-Au mineralization located
south of the Alwyn 102 Vein and its mineralized halo
- AW-23-108A intersected Cu-Au mineralization north of the Alwyn
Cu-Au 102 Vein
- A diabase dyke truncated the core zone of the Alwyn 102 Vein
and its mineralized halo in AW-23-109 and AW-23-110. Cu-Au
mineralization associated with the halos of the Alwyn 102 Vein is
observed in both holes above and below the upper and lower contacts
of the diabase dyke.
Highlights from 252 m of drilling in the
Glade Au trend (see tables 1 and 2 and figure 1)
- Many zones of Au mineralization intersected
- Supports the continuity of Au mineralization at depth in the
Glade Au trend
Development of the Scadding
deposit
The Company is continuing to investigate
opportunities to advance the exploration and potential development
of the high-grade gold zones of the Scadding deposit that remain
open laterally and at depth for further exploration.
Significant drill intersections in the North
Zone of the Scadding deposit include:
- 52.03 g/t over 12.3 m in SM-19-001, including 210.27 g/t gold
over 2.95 m
- 376.75 g/t gold over 2.96 m in SM-20-026.
Copper-Gold Mineralization along the
McLaren Lake Fault Zone hosting the Alwyn Cu-Au trend
The MLFZ is emerging as a compelling exploration
target for Cu-Au and potentially Co-Au mineralization affiliated
with mineral systems capable of forming IOCG and affiliated
deposits. Along the 2.5 km-long Alwyn Cu-Au trend defined in
collaboration with ALS-GoldSpot, near-surface Cu-Au mineralization
is associated with networks of quartz-carbonate veins with zones of
stronger Cu-Au mineralization concentrated in the Alwyn 102
Vein.
The 2023 drilling program confirmed the
existence of pervasive magnetite alteration zones in the SE
extension of the Alwyn Cu-Au trend at the edge of positive magnetic
anomalies overlapping with gravity anomalies (see figure 1). Many
drill holes from the 2022 and 2023 drilling programs also contain
chalcopyrite mineralization associated with the development of the
following iron-rich alteration types:
- AW-22-101 - Specular hematite and quartz-specular
hematite,
- AW-22-102 - Actinolite-chlorite-earthy hematite,
- AW-23-106 - Actinolite-garnet-chlorite-earthy hematite,
- AW-23-109 - Amphibole-chlorite-epidote-fluorite,
- AW-23-110 - Chlorite and chlorite with K-feldspar.
Regionally, the MLFZ is highly prospective for
critical and precious metals mineralization. In addition to Alwyn,
along the MLFZ on the SPJ Project the primary targets include the
Ashigami and Crerar showings, located 4.5 km and 9.5 km southeast
of the Alwyn mine, respectively.
Official Name |
Collar location |
Hole Attributes |
Easting (m) |
Northing (m) |
Elevation (m) |
Final Depth (m) |
Azimuth |
Dip |
Alwyn Cu-Au Trend |
AW-23-106 |
528406 |
5172103 |
274 |
126 |
190 |
-58 |
AW-23-107 |
528406 |
5172103 |
274 |
153 |
235 |
-50 |
AW-23-108 (Recollared) |
528287 |
5172073 |
284 |
21 |
0 |
-50 |
AW-23-108A |
528287 |
5172073 |
284 |
261 |
0 |
-50 |
AW-23-109 |
528623 |
5172033 |
280 |
162 |
240 |
-47 |
AW-23-110 |
528623 |
5172033 |
280 |
231 |
185 |
-55 |
Glade Au Trend |
AG-23-111 |
529049 |
5165626 |
292 |
252 |
135 |
-59 |
Table 1: Collar locations and attributes for
drilling along the Alwyn Cu-Au and Glade Au trends.
Table 2: Reported assays –2023 drilling
program
Hole ID |
From (m) |
To (m) |
Length (m)* |
Cu(wt. %) |
Au (g/t) |
Ag (g/t) |
Co (ppm) |
Zone |
AW-23-106 |
33.00 |
33.89 |
0.89 |
0.08 |
0.47 |
|
|
Alwyn Cu-Au trend |
33.89 |
53.05 |
Diabase |
56.00 |
72.00 |
16.00 |
0.31 |
0.31 |
|
|
Including |
56.00 |
56.90 |
0.90 |
1.35 |
2.83 |
1.06 |
|
72.00 |
102.00 |
30.00 |
0.058 |
|
|
|
AW-23-107 |
38.00 |
63.00 |
25.00 |
0.47 |
0.53 |
|
|
Including |
55.25 |
60.00 |
4.75 |
1.42 |
1.64 |
|
|
Alwyn Cu-Au trend |
135.00 |
141.00 |
6.00 |
0.27 |
0.16 |
|
|
AW-23-108 |
10.00 |
23.00 |
13.00 |
|
0.34 |
|
154 |
AW-23-108A |
35.00 |
71.00 |
36.00 |
0.12 |
0.23 |
|
|
|
35.00 |
36.80 |
1.80 |
0.41 |
1.74 |
|
|
144.00 |
166.30 |
22.30 |
0.08 |
|
|
|
240.50 |
243.80 |
3.30 |
0.08 |
|
|
|
AW-23-109 |
125.15 |
125.4 |
0.25 |
0.67 |
0.20 |
|
|
125.40 |
141.65 |
Diabase |
141.65 |
144.45 |
2.80 |
0.27 |
0.14 |
|
|
Alwyn Cu-Au trend |
AW-23-110 |
31.80 |
34.90 |
3.10 |
0.09 |
|
|
|
128.60 |
131.00 |
2.40 |
0.05 |
|
|
|
135.00 |
135.90 |
0.90 |
0.13 |
0.18 |
|
|
135.90 |
150.65 |
Diabase |
150.65 |
153.65 |
3.00 |
0.17 |
|
|
|
Alwyn Cu-Au trend |
AG-23-111 |
7.30 |
21.00 |
15.60 |
|
0.58 |
|
|
Glade Au trend |
40.18 |
51.18 |
1.00 |
|
3.76 |
|
|
142.00 |
146.00 |
4.00 |
|
1.23 |
|
|
219.00 |
222.00 |
3.00 |
|
0.60 |
|
|
*Assay results are presented over core length.
As they represent discoveries, additional drilling is necessary to
estimate the true width of the discovered zones of
mineralization.
Figure 1. Magnetic susceptibility (10-3 SI)
measured with a KT-10 susceptibility meter versus down-hole depth
(m) to show the distribution of magnetite alteration zones in the
eastern extension of the drill tested area of the Alwyn Cu-Au
trend.
Qualified Person
Jean-François Montreuil, P.Geo., Chief Geologist
of MacDonald Mines, is the qualified person as defined by National
Instrument 43-101 Standards of Disclosure for Mineral Projects,
responsible for preparing, supervising, and approving this news
release's scientific and technical content.
About MacDonald Mines Exploration
Ltd.
MacDonald Mines is a Canadian exploration
company focused on exploring for critical and precious metals in a
Metasomatic Iron alkali-calcic (MIAC) mineral system on its
100%-owned, 19,720 ha (197.2 km2) SPJ Project. MIAC systems are
known for hosting IOCG and affiliated deposits. The property is
located 20 km southeast of the prolific Sudbury Mining Camp in
Northern Ontario. The Company’s primary exploration focuses are the
polymetallic and iron-poor to possibly iron-rich Ag-Au-Cu-Co
showings and prospects along the McLaren Lake Fault System that
includes the Alwyn Cu-Au-(Ag-Co) trend and the Ashigami Co-Cu-Au
showings, and the iron-rich to iron-poor Glade Au trend recognized
to host Au mineralization comparable to the Scadding deposit. In
addition, a potential for nickel, cobalt, copper, and platinum
group elements in the Nipissing intrusions that are hosting the
Candore, Jerome and Glade showings within the SPJ Project.
To learn more about MacDonald Mines, please
visit www.macdonaldmines.com
ON BEHALF OF THE BOARD
“Mike England”
____________________________Mike England,
INTERIM CEO & DIRECTOR
FOR FURTHER INFORMATION PLEASE CONTACT: Telephone:
1-604-683-3995 TollFree:1-888-945-4770
E-mail: mike@engcom.ca
Forward-Looking Statements
This news release may contain certain “forward
looking statements.” Forward-looking statements involve known and
unknown risks, uncertainties, assumptions and other factors that
may cause the actual results, performance or achievements of the
Company to be materially different from any future results,
performance or achievements expressed or implied by the
forward-looking statements. Any forward-looking statement speaks
only as of the date of this news release and, except as may be
required by applicable securities laws, the Company disclaims any
intent or obligation to update any forward-looking statement,
whether as a result of new information, future events or results or
otherwise.
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