TORONTO, Jan. 20, 2020 (GLOBE NEWSWIRE) — MacDonald Mines Exploration Ltd. (TSX-V: BMK) (“MacDonald Mines”, “MacDonald” or the “Company”) announces further results from the diamond drill program completed last fall at its SJP property, 40 kilometres east of Sudbury, Ontario. Hole SM-19-008 intersected 3.6 g/t gold over 6 metres, including 21.5 g/t over 0.8 metres, testing the down-dip continuity of the gold zones of the North Pit area. Hole SM-19-012 intersected 4.0 g/t over 9 metres, including 9.1 g/t gold and 0.02% cobalt over 0.9 metres, testing the northern extension of the Scadding Mine. The results from the upper chlorite zone in hole SM-19-012 in which visible gold was observed, are still pending.
Highlights:
Hole SM-19-008 successfully extended at depth gold mineralization in the Bristol and Monaco structures in the North Pit area:
3.6 g/t gold over 6 metres, including 21.5 g/t gold over 0.8 metres in the Monaco Structure
Hole SM-19-012 successfully extended mineralization north of the Scadding Mine:
4.0 g/t gold over 9.4 metres, including 9.1 g/t gold and 0.02% cobalt over 0.9 metres
Results for a chlorite zone intersected between 48.6 and 55.3 metres, in which visible gold was observed, remain pending;
Hole
SM-19-012 was stopped near the upper contact of the Bristol breccia as
the significance and geological characteristics of that breccia zone
were not known when the hole was drilled.
“The 2019 drilling results continue to significantly expand the extensions and footprint of the high-grade gold mineralization found at the Scadding Deposit. We have confirmed that mineralization extends at depth in the Monaco and Bristol structures in the North Pit area, and we have indications in hole SM-19-008 that gold-cobalt mineralization is also possible in those structures – leading to the possibility of a much larger geological system at work than historically thought. Hole SM-19-012 shows that the mineralized structures mined at the Scadding Mine remain open to the north and that additional step-outs into those structures are able to discover further zones and extensions of high-grade gold mineralization.”
Quentin Yarie, MacDonald’s President and CEO
Table 1. Assay highlights from holes SM-19-009 and SM-19-010:
Hole
From (m)
To (m)
Length (m)*
Gold (g/t)
Cobalt (%)
Visible Gold
Structure
SM-19-008
129.1
135.1
6.0
3.6
VG
Monaco
Including
129.2
130.0
0.8
21.5
154.1
155.4
1.3
1.3
VG
179.1
186.1
7.0
0.4
0.01
VG
Bristol
SM-19-012
105.9
115.3
9.4
4.0
Talladega
Including
109.9
110.8
0.9
9.1
0.02
* Assays results presented over core length and are estimated to represent >70% true width.
Drilling in the North Pit area Hole
SM-19-008 was testing the Bristol and Monaco structures respectively 70
metres and 75 metres down-dip of SM-19-005 and SM-19-004. SM-19-008
successfully intersected incipient gold-cobalt in the Bristol Structure
and high-grade gold mineralization in the Monaco Structure, proving the
down-dip continuity of the structures and of mineralization. MacDonald’s
2019 drilling has now confirmed that high-grade gold mineralization in
the Bristol and Monaco structures in the North Pit area is present over a
lateral extension of 125 metres, down-dip over 150 metres and remains
open in every direction.
Drilling near the Scadding Mine Hole SM-19-012 was testing the northern extension of the mineralized structures mined in the Scadding underground mine. Although the results from the upper chlorite zone are still pending, hole SM-19-012 successfully indicated that high-grade gold mineralization extends north of the Scadding Mine, that stacked mineralized structures exist near the Scadding Mine and that additional drilling is likely to continue to expand the footprint of mineralization north of the Scadding underground mine. Hole SM-19-012 was terminated near the upper contact of the Bristol breccia and intersected low grade gold mineralization in the contact zone (0.25 g/t gold over 3 metres, 0.25 g/t gold over 1.09 metres), indicating that gold mineralization persists in the Bristol breccia 80 metres north of SM-19-009.
First phase of the 2020 Drilling Program Following
the very positive results obtained in the North Pit area, the first
phase of MacDonald’s drilling in 2020 will target drilling gaps and the
lateral and down-dip extensions of the Monaco and Bristol structures in
the North pit area to quantify the size and grade of the zones of
high-grade gold mineralization.
Although there
are many historic holes in the North Pit area, MacDonald’s 2019 drilling
has shown that the historic drilling results are unreliable – the
historic drilling intersections cannot be precisely located and many
historic holes were drilled in orientations that significantly minimized
the probabilities of intersecting mineralization. Drilling using
systematic azimuth and spacing is necessary to adequately define the
geometry, continuity and size of the zones of high-grade gold
mineralization in the Bristol and Monaco structures in the North Pit
area.
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
18,860 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).
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”.
Neither
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.
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