Toronto, Ontario – December 9, 2019– MacDonald Mines Exploration Ltd. (TSX-V: BMK) (“MacDonald Mines”, “MacDonald” or the “Company”) announces results from four holes of its now completed Fall 2019 drilling program at the Company’s SPJ Property, 40 kilometres east of Sudbury, Ontario. Results are highlighted by hole SM-19-022 with the discovery of a significant zone of near-surface gold mineralization north of the Scadding East-West (“E-W”) Pit – 7.99 g/t gold over 26.2 metres including 10.98 g/t over 4.98 metres and 11.54 g/t over 13.24 metres was intersected from 16 to 42 metres depth. Twenty-five (25) holes have been completed with 9 holes reported to date. The remaining 16 holes are being processed and assay results will be announced as they are received.
Table 1. Assay highlights from reported holes
Hole
From (m)
To (m)
Length (m)*
Gold (g/t)
Gold Structure
SM-19-006
284.78
287.33
2.55
1.18
Bristol
296.21
300.44
4.23
1.30
SM-19-007
No significant results
SM-19-018
31.45
32.52
1.07
3.99
Villeneuve
SM-19-022
16.00
42.20
26.20
7.99
Discovery – TBD
including
16.00
20.98
4.98
10.98
28.00
41.24
13.24
11.54
*
Assays results presented over core length. In SM-19-006 they are
estimated to represent 65-75% true width in the North Zone. Additional
drilling is necessary to estimate true width in the zones discovered in
SM-19-018 and SM-19-022.
“Our 2019 drilling program shows that significant zones of near-surface, high-grade gold mineralization are present beyond the original footprint of the historic operations of the Scadding Deposit. Having successfully completed the first phase of our diamond drilling program at Scadding, we will now finalize the logging of all remaining drill holes, update our geological model of the deposit and define the next targets for the budgeted early 2020 diamond drilling campaign.”
Quentin Yarie, MacDonald’s President and CEO
Table 2. Diamond Drill Hole Locations
Hole ID
Easting
Northing
Elev
Azimuth
Dip
Depth
SM-19-006
529354.372
5166611.645
316.513
245
-45
328
SM-19-007
529234.31
5166605.28
311.772
265
-66
257
SM-19-018
529607.318
5166487.92
292.766
235
-45
112
SM-19-022
529532.88
5166472.304
304.605
232.1
-62.3
166
Figure 1. Location of reported drilling to date relative to Scadding Mine.
Holes
SM-19-006 and SM-19-007 targeted the deeper extension of the Bristol
Structure that was intersected in holes SM-19-001 to SM-19-005. Hole
SM-19-006 successfully intersected the extension of the Bristol
Structure 215 metres down-dip of the intersection in SM-19-003. Hole
SM-19-006 proves that the Bristol Structure continues at depth and
remains mineralized. Hole SM-19-007 intersected the Bristol Structure
150 metres down-dip of SM-19-003. At that pierce point, no significant
mineralization was intersected. However, given the nature of
mineralization, additional drilling will be required to confirm that
mineralization is not present.
Hole SM-19-018 targeted the
extension of the mineralized structures observed on the Villeneuve
trench, located east of the E-W Pit of the Scadding Deposit. Hole
SM-19-018 successfully intersected the Villeneuve Structure and showed
that the structure remains mineralized at depth.
Hole SM-19-022
tested a mineralized structure observed located north of the eastern end
of the E-W Pit of the Scadding Deposit. Consistent with MacDonald’s
observation that the historic drilling patterns were not systematically
optimized to test the mineralized structures of the property, hole
SM-19-022 was collared at an azimuth that was 193.5 degrees opposite of
the azimuth a drill hole from the 2011 drilling program located on the
same drill pad. This led in hole SM-19-022 to the discovery of a
significant zone of near-surface high-grade gold mineralization starting
from 16 metres down-hole. Additional drilling will be necessary to
fully constrain the geometry and extent of the newly discovered
structure.
Summary of the Fall 2019 Drilling Program
The
objectives of the Fall 2019 drilling program were to confirm and expand
the zones of high-grade gold mineralization, documented along several
mineralized structures, that form the Scadding Deposit.
The
structures targeted included those associated with gold mineralization
in the North, South and E-W pits of the Scadding Mine, the Scadding
underground mine, the Villeneuve discovery, the historic New Zone
located between the Scadding Mine and the E-W Pit, and a historic
exploration pit located between the New Zone and the E-W Pit. Evidence
of chlorite alteration associated with gold mineralization was observed
in all the completed drill holes:
Hole SM-19-008 successfully
intersected the down-dip extension of the Bristol and Monaco Structures
in the North Pit area. One speck of visible gold, in addition to
variable pyrite and minor chalcopyrite mineralization, was observed in
both the Bristol and Monaco Structures in SM-19-008.
Hole
SM-19-009 tested a chlorite-bearing structure, located west of the
Scadding Mine. One speck of visible gold, variable pyrite and minor
chalcopyrite mineralization were observed in the zone of chlorite in
SM-19-009.
Holes SM-19-010, SM-19-011 and SM-19-012 were
collared east of the Scadding Mine to test mineralization in the
vicinity of the underground workings of the Scadding Mine. They
intersected two new N-S structures – the Calabogie and Mosport
Structures that also host zones of chlorite alteration with variable
pyrite and pyrrhotite, and minor chalcopyrite mineralization. Specks of
visible gold were observed in the chlorite zone of the Mosport Structure
in SM-19-012. SM-19-011 had to be terminated before intersecting the
Mosport Structure as it intersected the Scadding Mine’s underground
development.
The structure where visible gold was intersected in
SM-19-009 was likely intersected in holes SM-19-010 and SM-19-012.
Holes SM-19-010 and SM-19-012 also successfully intersected the northern
and southern extensions of the chlorite-bearing structure mined in the
Scadding Mine – the Talladega Structure. This is suggesting that the
zones of chlorite alteration associated gold mineralization in the
Talladega Structure remain open in all directions and beneath of the
underground developments of the Scadding Mine.
SM-19-013,
SM-19-016 and SM-19-025 tested chlorite structures located between the
Scadding Mine and the E-W Pit that were historically named the New Zone.
Hole SM-19-013 successfully intersected two structures hosting chlorite
alteration with variable pyrrhotite, pyrite, and minor chalcopyrite
mineralization. Hole SM-19-016 successfully intersected the down-dip and
lateral extensions of the chlorite structures intersected in SM-19-013.
Hole SM-19-025 tested a structure associated with a small pit located
between the E-W Pit and the New Zone, and the extension of the chlorite
structures of the New Zone north of SM-19-016. SM-19-025 successfully
intersected a chlorite-bearing structure between 10 and 15 metres. One
speck of visible gold was observed in that structure. Hole SM-19-025
also successfully intersected the northern extension of the chlorite
structures of the New Zone, 40 metres north of the intersections in
SM-19-016. Visible gold was observed in one of the intersected chlorite
structures between 88 and 94.5 metres.
SM-19-014 and SM-19-015
tested the western extension of the E-W Pit and successfully intersected
zones of chlorite alteration with variable pyrrhotite, pyrite and
magnetite, and minor chalcopyrite, in a new N-S structure named the
Bugatti Structure. The Bugatti Structure is interpreted as one of the
structures that controls chlorite alteration and gold mineralization
shallowly mined in the E-W Pit. Additional drilling will be necessary to
confirm the geometry of the Bugatti Structure.
Hole SM-19-019,
SM-19-020 and SM-19-021 tested the extension of the Villeneuve Structure
north, south and down-dip of the intersection in SM-19-018. All the
holes successfully intersected chlorite structures that are interpreted
to be the potential extensions of the Villeneuve Structure.
Hole
SM-19-017, SM-19-023 and SM-19-024 tested mineralization associated
with the South Pit of the Scadding Deposit. With the exception of
SM-19-023, that intersected a significant diabase dyke instead of the
mineralization indicated by historic drilling, both holes SM-19-017 and
SM-19-024 successfully intersected structures with chlorite alteration.
On-site Quality Assurance/Quality Control (“QA/QC”) Measures
Drill
core samples were transported in security-sealed bags for analyses to
Bureau Veritas in Timmins, Ontario. Individual samples are labeled,
placed in plastic sample bags and sealed. Groups of samples are then
placed into durable rice bags and then shipped. The remaining coarse
reject portions of the samples remain in storage if further work or
verification is needed.
MacDonald has implemented a
quality-control program to comply with best practices in the sampling
and analysis of drill core. As part of its QA/QC program, MacDonald
inserts external gold standards (low to high grade) and blanks every 20
samples in addition to random standards, blanks, and duplicates. All
samples over 10 g/t gold or the samples with abundant visible gold are
analysed by 1 kilogram metallic screen.
SPJ Property highlights
100% ownership
17,720 hectares in excellent mining jurisdiction and close to infrastructure
Hosts the high-grade past producing Scadding Gold Mine
Evidence of polymetallic mineralization at the Scadding Deposit indicative of IOCG potential
Significant gold, cobalt-copper, silver, nickel and rare earth showings outside of the Scadding Deposit footprint
Historically,
the Scadding Mine produced 914 kilograms of gold from 127,000 tonnes of
mineralized material grading 7.2 g/t (OFR 5771). MacDonald’s
reinterpretation of the geological model at the Scadding Deposit and
larger SPJ property indicates that it could host a gold-rich
Iron-Oxide-Copper-Gold deposit and that significant gold structures may
have been missed by previous operators’ drilling campaigns (2009-2011).
Figure 2. Macdonald Mines SPJ Property
Qualified Person
Quentin
Yarie, P Geo. is the qualified person responsible for preparing,
supervising and approving the scientific and technical content of this
news release.
About MacDonald Mines Exploration Ltd.
MacDonald
Mines Exploration Ltd. is a mineral exploration company headquartered
in Toronto, Ontario focused on gold exploration in Canada. The Company
is focused on developing its large SPJ Project in Northern Ontario.
The Company’s common shares trade on the TSX Venture Exchange under the symbol “BMK”.
Quentin Yarie, President & CEO, (416) 364-4986, qyarie@macdonaldmines.com
Or Mia Boiridy, Investor Relations, (416) 364-4986, mboiridy@macdonaldmines.com
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