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Fireweed Drills New Zone at the Macmillan Pass Project Including 22.5 metres of 6.13% Zinc and 0.95% Lead

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FIREWEED ZINC LTD. (TSX-V: FWZ) is pleased to announce assays from the first five drill holes in the Tom North open pit target and a step out hole at Tom West at the Macmillan Pass Project in Yukon, Canada. Drilling has now finished on the property and additional assays from multiple zones are pending.

 

Highlights

 

  • Tom North hole TS19-002 intersected 6.36% Zinc and 0.65% Lead over 9.00 metres and TS19‑001 intersected 6.19% Zinc and 0.51% Lead over 7.30 metres (true widths), successfully proving the concept of the near-surface Tom North exploration target that has potential to be mined in an open‑pit and improve current PEA economics.
  • Tom North hole TS19-006 intersected 6.13% Zinc and 0.95% Lead over a wide interval of 22.54 metres (true width), significantly improving on historic grades and widths as a result of superior core recovery.
  • The drill program has been successfully completed for a total of 2,357 metres drilled in 16 diamond drill holes. Assays from additional holes are pending.

 

Table 1: Initial 2019 drilling results from Tom North and Tom West

 

 

Hole Zone From
(metres)
To
(metres)
Interval
(metres)
Estimated
True
Width
(metres)
Zinc (%) Lead (%) Silver (g/t)
TS19-001 Tom North 67.20 74.75 7.55 7.30 6.19 0.51 2.8
Including 69.75 72.20 2.45 2.37 10.75 1.21 4.9
TS19-002 Tom North 80.00 89.53 9.53 9.00 6.36 0.65 1.8
TS19-003 Tom North 89.84 101.29 11.45 10.60 3.87 0.73 1.8
TS19-004 Tom West 204.00 207.26 3.26 2.20 6.24 2.09 35.8
And 213.44 214.00 0.56 0.34 11.17 0.70 14.6
TS19-005 Tom North 8.21 33.14 24.93 22.54 6.04 0.94 1.3
TS19-006 Tom North 8.32 39.99 31.67 22.54 6.13 0.95 1.6
Including 34.00 39.00 5.00 3.69 8.41 1.68 3.0

 

CEO Statement

Brandon Macdonald, CEO, stated, “We are pleased with the results from the first 2019 drill assays. So far Tom North is showing potential open-pit results and it is noteworthy that holes TS19-005 and TS19-006 reported much higher grades over wider intervals than the 1952 hole they twinned due to better recoveries using modern drilling techniques. With these positive first drill assays now in, we look forward to release of drill results from other zones tested this summer to expand on our current resources, which are already among the largest undeveloped zinc resources in the world, as well as the field program of geophysics, geochemistry and mapping still ongoing.”

 

Tom North

Historic trenching and very shallow, low-recovery drilling in 1952 indicated the presence of near-surface mineralization at Tom North. The first drill holes of the 2019 season have confirmed that mineralization extends to depth, and the results define a near-surface zone of zinc-lead mineralization that is potentially amenable to open-pit mining. The Tom North exploration target has mineralization demonstrated over a strike length of at least 500 metres, a true thickness between 6 and 23 metres (average of 12 metres), with the down-dip extent tested to 190 metres, and is open to depth (Figures 1-3). The average bulk density of the mineralized rock is 2.86 t/m3. The mineralization is stratiform and comprises laminated fine-grained sphalerite-galena-pyrite-barite. Tom North is a distinct zone separated from the Tom West zone by faulting (Figure 2).

 

No mineral resource has been estimated for Tom North and the zone is not included in the current mineral resource estimate for the property (described in Fireweed news release dated January 10, 2018). Tom North represents potential for a significant expansion to the Tom mineral resources, to extend open pit and underground mine life, and to improve project economics described in the current Preliminary Economic Assessment (PEA) (see Fireweed news release dated May 23, 2018). The current PEA includes a three year open-pit mine life at Tom West over the course of an overall 18 year mine life.

 

Drill holes TS19-005 and TS19-006 effectively twinned a historic 1952 drill hole and both returned significantly higher grades and thicknesses than the historic twin hole, owing to better recoveries using modern drilling methods. TS19-006 was drilled below TS19-005 to improve on core recoveries and obtain a slightly deeper cut of the zone. Two additional twin holes have been drilled in Tom North, and assays are pending.

 

Tom West

A step-out hole at Tom West, TS19-004, extends the mineralization to the south. Mineralization in the hole was cut off by a fault, limiting the width of the drilled intersection (Figure 2). Structural information gathered from the hole will be used to inform further exploration in this area.

 

2019 Drilling

The 2019 drill program is now complete. A total of 16 diamond drill holes have been drilled for a total of 2,357 metres. Targets tested were Tom North, Tom East, Tom West, Jason North, Target A, Target G, Target R, and Boundary Zone (Tables 2 & 3, and Figure 4). Assays are pending for all holes not included in this release and summary descriptions of field results and observations are provided in Table 3.

 

Notes on sampling and assaying:

The drill core logging and sampling program is carried out under a rigorous quality assurance / quality control program using industry best practices. Drill intersections in this release are all HQ3 (split tube) size core (61.1mm / 2.4-inch diameter) with recoveries typically above 85%. After drilling, core is logged for geology, structure and geotechnical characteristics, marked for sampling, and photographed on site. The cores for analyses are marked for sampling based on geological intervals with individual samples 1.5 metres or less in length. Drill core is cut lengthwise in half with a core saw; half-core is sent for assay, the other half is stored on site for reference. A total of 5% assay standards and 5% blanks are inserted into every sample shipment as a quality control measure and reviewed, after analyses are received. Standards and blanks in shipments to date have been approved as acceptable. Samples are sent to the Bureau Veritas (formerly Acme Labs) preparation laboratory in Whitehorse, Yukon, where the samples are crushed and a 500 g split is pulverized to 85% passing 200 mesh size pulps. Clean crush material is passed through the crusher and clean silica is pulverized between each sample. The pulps are then sent to the Bureau Veritas laboratory in Vancouver, B.C. and 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 are 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.

 

Technical information in this news release has been approved by Gilles Dessureau, P.Geo, Vice President Exploration and a ‘Qualified Person’ as defined under Canadian National Instrument 43‑101.

 

About Fireweed Zinc Ltd.

 

Fireweed Zinc is a public mineral exploration company focused on zinc and managed by a veteran team of mining industry professionals. The Company is advancing its district-scale 544 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 Tom North Zone, Boundary Zone and End Zone which have significant zinc-lead-silver mineralization drilled but not yet classified as mineral resources. The project also includes option agreements on large blocks of adjacent claims (MAC, MC, MP, Jerry, BR and NS) 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.

 

Footnotes:

  1. Historic drill results for Tom North reported in this news release are taken from historic reports prepared by previous operators. Neither the Company or the Qualified Person has done sufficient work to verify these results and therefore these results should not be relied upon. The Company is including them for information purposes only to explain the basis for the exploration target and reasons for drilling.

 

TABLE 2: 2019 DRILL HOLE COLLAR DATA

 

 

Hole ID Length (m) Target Easting Northing Elevation (m) Dip (°) Grid Azimuth (°)
JS19-001 108.0 Jason North 436216 7002989 1311 -50 11
JS19-002 100.2 Jason North 436166 7002950 1300 -50 11
MP19-001 89.0 Target A 429812 7005980 1225 -50 207
MP19-002 63.2 Target G 417543 7017670 1750 -49 211
NB19-001 308.8 Boundary Zone 422379 7010432 1170 -50 216
NB19-002 357.0 Boundary Zone 422379 7010432 1170 -65 216
TS19-001 110.0 Tom North 441686 7004448 1442 -51 77
TS19-002 119.0 Tom North 441716 7004332 1466 -51 75
TS19-003 125.0 Tom North 441628 7004602 1417 -52 59
TS19-004 234.0 Tom West 442043 7003582 1583 -77 92
TS19-005 45.0 Tom North 441804 7004295 1519 -50 77
TS19-006 54.0 Tom North 441803 7004295 1519 -60 77
TS19-007 330.0 Tom East 442002 7004363 1638 -64 73
TS19-008 84.0 Tom North 441747 7004541 1474 -50 65
TS19-009 45.0 Tom North 441770 7004426 1487 -50 65
TS19-010 184.8 Target R 440256 7005943 1211 -50 318
UTM Zone 9 NAD83            

TABLE 3: 2019 DRILL HOLE RESULTS AND OBSERVATIONS

 

 

Hole No. Zone Drill Target Results and Observations
TS19-001 Tom North Step out hole at depth in Tom North Assays reported in this news release.
TS19-002 Tom North Step out hole at depth in Tom North Assays reported in this news release.
TS19-003 Tom North Step out hole at depth in Tom North Assays reported in this news release.
TS19-004 Tom West Step out hole at south end of Tom West Zone Assays reported in this news release.
TS19-005 Tom North Twin hole to confirm 1952 drill results Assays reported in this news release.
TS19-006 Tom North Drilled below TS19-005 for better core recoveries Assays reported in this news release.
TS19-007 Tom East Step out hole down dip in Tom East Zone intersected but due to drill hole deviation this ended up being a Tom East infill hole. Assays pending.
TS19-008 Tom North Twin hole to confirm 1952 drill results Zone intersected. Assays pending.
TS19-009 Tom North Twin hole to confirm 1952 drill results Zone intersected. Assays pending.
TS19-010 Target R Geophysical anomaly No significant intersection. Anomaly explained by pyrite and dense sedimentary rock unit.
JS19-001 Jason North Coincident geological-geophysical-geochemical anomaly Minor mineralization intersected. Target will be re-evaluated this winter.
JS19-002 Jason North Coincident geological-geophysical-geochemical anomaly Minor mineralization intersected. Target will be re-evaluated this winter.
MP19-001 Target A Geophysical anomaly No significant intersection. Anomaly explained by dense sedimentary rock unit.
MP19-002 Target G Drilling below zinc-lead mineralization found on surface Narrow zone intersected. Assays pending.
NB19-001 Boundary Zone Infill hole to confirm historic drill results and collect large sample for metallurgical-ore sorting test work. Wide zone intersected. Core being logged and sampled. Assays pending.
NB19-002 Boundary Zone Infill hole to confirm historic drill results and collect large sample for metallurgical-ore sorting test work. Wide zone intersected. Core being logged and sampled. Assays pending.

 

Photos accompanying this announcement are available at: 

 

https://www.globenewswire.com/NewsRoom/AttachmentNg/04ed623f-305e-4212-b7cf-14ec2aab1ae5

 

https://www.globenewswire.com/NewsRoom/AttachmentNg/973e83d6-9f3a-4b8e-8778-da115da561f6

 

https://www.globenewswire.com/NewsRoom/AttachmentNg/7396241f-202c-4567-8ef0-fb1e6c883e57

 

https://www.globenewswire.com/NewsRoom/AttachmentNg/6f91c340-7b33-442e-bd95-013605fc19cf

 

Posted August 20, 2019

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