FIREWEED ZINC LTD. (“Fireweed”) (TSXV: FWZ) is pleased to announce
the final results from the 2020 drilling at the Macmillan Pass
Project in Yukon, Canada. These results are from the Reverse
Circulation (RC) drill program at the Tom and Jason deposits (see
Map 1).
Highlights
- Hole TRC20-003
intersected 8.2 m true thickness of 11.00% zinc, 8.74% lead, and
19.6 g/t silver in an infill hole at Tom West
- Hole TRC20-007
intersected 8.1 m true thickness of 5.92% zinc, 0.25% lead, and 1.7
g/t silver in a step-out hole at Tom North.
- Hole TRC20-002
intersected 10.6 m true thickness of 9.43% zinc, 5.36% lead, and
36.4 g/t silver in a twin of hole TS020, an historic diamond hole
drilled at Tom West in 1952.
- Lead and silver
grades in RC twin holes are significantly higher than historic
small-diameter diamond drill holes.
Table 1: 2020 RC drill results from the Tom and
Jason Deposits
Drill Hole |
Zone |
From(meters) |
To(meters) |
Interval(meters) |
EstimatedTrueWidth(meters) |
Zinc %) |
Lead(%) |
Silver(g/t) |
TRC20-002 |
Tom West |
44.20 |
57.91 |
13.71 |
10.6 |
9.43 |
5.36 |
36.4 |
(TS020)* |
Tom West |
59.44 |
70.87 |
11.43 |
10.1 |
9.38 |
3.67 |
23.7 |
TRC20-003 |
Tom West |
38.10 |
47.24 |
9.14 |
8.2 |
11.00 |
8.74 |
19.6 |
TRC20-004 |
Tom West |
42.67 |
50.29 |
7.62 |
7.2 |
8.85 |
4.70 |
18.4 |
TRC20-007 |
Tom North |
88.39 |
97.54 |
9.15 |
8.1 |
5.92 |
0.25 |
1.7 |
JRC20-002 |
Jason Main |
44.20 |
59.44 |
15.24 |
6.30 |
5.54 |
3.23 |
2.2 |
*TS020 is an historic diamond drill hole drilled
in 1952 and grades reported here are from historic records to show
a comparison to twinned hole TRC20-002.
CEO StatementBrandon Macdonald, CEO, stated,
“Improvements in grade with modern drilling methods have been seen
in 2018 at Tom West, in 2019 at Tom North and again here in 2020,
showing significant grade upside potential for infill drilling. The
RC program tested areas with some of the most challenging drilling
conditions on the property and yet still delivered excellent
results at a lower cost than diamond drilling. We see potential to
use RC drilling during infill drill programs to reduce the cost of
upgrading mineral resources at shallow depths, particularly at
Boundary Zone where mineralization occurs at surface and is hosted
by much more competent rocks where drilling conditions are much
more favourable. The successful step-out hole shows that the
project continues to grow at Tom as we advance new discoveries at
Boundary Zone.”
2020 RC Drilling programThe program was designed
to test the potential of RC drilling as a lower cost alternative to
diamond drilling for upgrading mineral resources at shallow depths.
In 2020, a small number of RC test holes were drilled as infill and
twin holes at the Tom and Jason deposits. A step-out hole was also
drilled at Tom North.
The 2020 RC infill drilling at Tom West was
located in the high-grade, feeder-proximal part of the deposit
where the current Mineral Resource is supported by small-diameter
historic AX (30.1 mm diameter) or EX (20.6 mm diameter) diamond
drill core (see Map 2 and Fireweed news release dated January 10,
2018). Hole TRC20-002 was an RC twin of an historic EX diamond
drill hole, TS020. Zinc grades are very similar but lead and silver
grades are significantly higher in TRC20-002 compared to historic
hole TS020. Elsewhere at Tom West and at Tom North, similar
patterns have been observed where modern drilling methods show
significantly higher grades and thicknesses than nearby historic
small-diameter core diamond holes due to better recoveries with
modern drilling methods (see Fireweed news releases dated October
10th, 2018 and August 20th, 2019). Other successful 2020 Tom West
infill RC holes intersected consistent high zinc, lead and silver
grades shown in Table 1.
The Tom North exploration target was defined by
drilling by Fireweed in 2019 but is not yet classified as a Mineral
Resource (see Fireweed news release dated August 20th, 2019). Hole
TRC20-007 was a modest step-out in the down-dip direction at Tom
North, 50 m away from the previously drilled mineralized intercept
in hole TS19-001 (see Map 2) and is within 80 m from surface.
Hole JRC20-002 was drilled as an RC infill hole
in the Jason Main deposit (see Map 3). Mineralization was
intercepted from 44.20 m to the end of hole at 59.44 m. The hole
was abandoned in mineralization due to drilling difficulties,
intersecting approximately two-thirds of the mineralized zone.
Notes on sampling, assaying, and data aggregation:
RC rock cuttings were collected with a
face-sampling bit to minimize contamination. Samples were collected
at 1.52 m intervals as the drill was operating. When drilling dry,
the samples from the drill return cyclone were collected in a clean
plastic 20 litre pail and the sample was weighed to assess recovery
for each run. Samples were then logged for geology and run through
a Jones-type riffle splitter to recover a 2 kg to 6 kg sample
split. Washed chips were examined and stored in a chip tray for
reference. Pails and splitter were thoroughly cleaned with
compressed air prior to processing the next sample. Sample splits
were collected in plastic sample bags, securely closed, packed and
shipped to the laboratory for assay. When drilling wet, the entire
sample was collected, logged and left to dry in open air. When dry,
each sample was weighed to calculate recovery and then processed as
described above. After sampling, the remaining cuttings were left
on site and bagged for archival purposes.
The RC logging and sampling program was carried
out under a rigorous quality assurance / quality control program
using industry best practices. Drill intersections in this release
had good recoveries, typically above 85%. A total of 5% assay
standards or blanks and 5% RC duplicates are included in the sample
stream as a quality control measure and are reviewed after analyses
are received. Standards and blanks in 2020 drill results to date
have been approved as acceptable. Duplicate data add to the
long-term estimates of precision for assay data on the project and
precision for drill results reported is deemed to be within
acceptable levels. Samples were sent to the Bureau Veritas
preparation laboratory in Whitehorse, Yukon, where the samples were
crushed and a 500 g split was sent to the Bureau Veritas laboratory
in Vancouver, B.C to be pulverized to 85% passing 200 mesh size
pulps. Clean crush material was passed through the crusher and
clean silica was pulverized between each sample. The pulps were
analyzed by 1:1:1 Aqua Regia digestion followed by Inductively
Coupled Plasma Mass Spectrometry (ICP-ES/ICP-MS) multi-element
analyses (BV Code AQ270). All samples were also analyzed for
multiple elements by lithium borate fusion and X-ray fluorescence
analysis (XRF) finish (BV Code LF725). Over-limit Pb (>25.0%)
and Zn (>24.0%) were analyzed by lithium borate fusion with XRF
finish (BV Code LF726). Silver is reported in this news release by
method AQ270, and zinc and lead are reported by LF725 or LF726.
Bureau Veritas (Vancouver) is an independent, international ISO/IEC
17025:2005 accredited laboratory. RC drill results in this news
release are length weighted averages. True thicknesses have been
estimated in 3D using interpretations from geological and assay
data in surrounding drill holes to determine the geometry of the
mineralized zones.
Qualified Person StatementTechnical information in this news
release has been approved by Jack Milton, P.Geo., Ph.D., Chief
Geologist, and a ‘Qualified Person’ as defined under Canadian
National Instrument 43-101.
About Fireweed Zinc Ltd. (TSXV:
FWZ): Fireweed Zinc is a public mineral exploration
company focused on zinc-lead-silver and managed by a veteran team
of mining industry professionals. The Company is advancing its
district-scale 940 km2 Macmillan Pass Project in Yukon, Canada,
which is host to the 100% owned Tom and Jason zinc-lead-silver
deposits with current Mineral Resources and a PEA economic study
(see Fireweed news releases dated January 10, 2018, and May 23,
2018, respectively, and reports filed on www.sedar.com for details)
as well as the Boundary Zone, Tom North Zone and End Zone which
have significant zinc-lead-silver mineralization drilled but not
yet classified as mineral resources. The project also includes
large blocks of adjacent claims (MAC, MC, MP, Jerry, BR, NS, Oro,
Sol, Ben, and Stump) which cover exploration targets in the
district where previous and recent work identified zinc, lead and
silver prospects, and geophysical and geochemical anomalies in
prospective host geology.
Additional information about Fireweed Zinc and
its Macmillan Pass Zinc Project including maps and drill sections
can be found on the Company’s website at www.FireweedZinc.com and
at www.sedar.com.
ON BEHALF OF FIREWEED ZINC
LTD.
“Brandon Macdonald”
CEO & Director
ContactBrandon MacDonaldPhone: (604)
646-8361
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.
Cautionary StatementsThis news
release may contain “forward-looking” statements and information
relating to the Company and the Macmillan Pass Project that are
based on the beliefs of Company management, as well as assumptions
made by and information currently available to Company management.
Such statements reflect the current risks, uncertainties and
assumptions related to certain factors including but not limited
to, without limitations, exploration and development risks,
expenditure and financing requirements, general economic
conditions, changes in financial markets, the ability to properly
and efficiently staff the Company’s operations, the sufficiency of
working capital and funding for continued operations, title
matters, First Nations relations, operating hazards, political and
economic factors, competitive factors, metal prices, relationships
with vendors and strategic partners, governmental regulations and
oversight, permitting, seasonality and weather, technological
change, industry practices, and one-time events. Additional risks
are set out in the Company’s prospectus dated May 9, 2017, and
filed under the Company’s profile on SEDAR at www.sedar.com. Should
any one or more risks or uncertainties materialize or change, or
should any underlying assumptions prove incorrect, actual results
and forward-looking statements may vary materially from those
described herein. The Company does not undertake to update
forward‐looking statements or forward‐looking information, except
as required by law.
Map 1 – Macmillan Pass Project: Locations of the
2020 exploration targets, advanced prospects, and known
deposits.https://www.globenewswire.com/NewsRoom/AttachmentNg/11af036f-cbd2-4657-846e-479d18f7693c
Map 2 – Tom 2020 RC drilling: Locations of the
2020 RC drill holes at Tom. Diamond drill holes are also shown, and
those referred to in the text are
labelled.https://www.globenewswire.com/NewsRoom/AttachmentNg/9633d902-a26c-4518-b231-424274a360cf
Map 3 – Jason 2020 RC drilling: Locations of
the 2020 RC drill holes at Jason. Diamond drill hole locations are
also
shown.https://www.globenewswire.com/NewsRoom/AttachmentNg/e157ee02-82ad-46f6-ac13-0b02e0dd3e15
Table 2 - Reverse Circulation (RC) Drill Hole Collars
Drill Hole |
Length (m) |
Zone |
Easting* |
Northing* |
Elevation (m) |
Dip (°) |
Grid Azimuth (°) |
TRC20-001 |
7.6 |
Tom West |
442065 |
7003667 |
1547 |
-50 |
066 |
TRC20-002 |
82.3 |
Tom West |
442071 |
7003663 |
1547 |
-80 |
066 |
TRC20-003 |
64.0 |
Tom West |
442071 |
7003663 |
1547 |
-55 |
066 |
TRC20-004 |
64.0 |
Tom West |
442071 |
7003663 |
1547 |
-70 |
089 |
TRC20-005 |
47.2 |
Tom West |
442071 |
7003663 |
1547 |
-55 |
129 |
TRC20-006 |
36.6 |
Tom West |
442049 |
7003678 |
1545 |
-80 |
065 |
TRC20-007 |
98.45 |
Tom North |
441654 |
7004507 |
1422 |
-51 |
076 |
JRC20-001 |
47.24 |
Jason Main |
436437 |
7002774 |
1298 |
-50 |
027 |
JRC20-002 |
59.44 |
Jason Main |
436533 |
7002772 |
1300 |
-65 |
011 |
*UTM Zone 9 NAD83
Table 3 - Reverse Circulation (RC) Drill Hole Summary.
Drill Hole |
Length (m) |
Zone |
Target |
Results and Observations |
TRC20-001 |
7.6 |
Tom West |
Infill |
Hole abandoned at casing due to drilling problems |
TRC20-002 |
82.3 |
Tom West |
Twin of historic hole |
Successful twin with good recovery. Assays reported in this
release. |
TRC20-003 |
64.0 |
Tom West |
Infill |
Tom West zone intersected. Assays reported in this release. |
TRC20-004 |
64.0 |
Tom West |
Infill |
Tom West zone intersected. Assays reported in this release. |
TRC20-005 |
47.2 |
Tom West |
Step-out |
Hole abandoned before target depth due to drilling problems |
TRC20-006 |
36.6 |
Tom West |
Infill |
Hole abandoned before target depth due to drilling problems |
TRC20-007 |
98.45 |
Tom North |
Step-out |
Tom North zone intersected. Last run 97.54-98.45 m inweak
mineralization (2.52% Zn, 0.06% Pb and 1.4 g/tAg over 0.91 m)
before hole was abandoned due todrilling problems. Assays reported
in this release. |
JRC20-001 |
47.24 |
Jason Main |
Infill |
Hole abandoned before target depth due to drilling problems. |
JRC20-002 |
59.44 |
Jason Main |
Infill |
Jason Main zone intersected. Hole abandoned inmineralization.
Assays reported in this release. |
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