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Highlights
- Hole BR-1047 intersected 4.19 metres at 7.91% Zn, 2.54% Pb and 66.50 g/t Ag.
- Hole BR-1047A intersected 23.00 metres at 5.84% Zn, 1.93% Pb and 69.25 g/t Ag.
- Hole BR-1047B intersected 29.01 metres at 6.24% Zn, 2.33% Pb and 63.05 g/t Ag.
- Hole BR-1048 intersected 68.74 metres at 7.19% Zn, 2.57% Pb, and 86.45 g/t Ag.
- Hole BR-1048A intersected 9.00 metres at 7.11% Zn, 2.86% Pb, and 82.69 g/t Ag.
Caribou North Limb delineation
During the fall of 2019, Trevali completed 3,815 metres of drilling on the Caribou North Limb, with the goal of increasing confidence in the geological model. Previous drilling campaigns by Trevali in this area had intersected locally higher-grade mineralization, notably in drill holes BR-1014A and BR-1030. The northern portion of Caribou North Limb was classified as Inferred Mineral Resources and a surface drilling campaign was completed with the focus on upgrading the Mineral Resource to Indicated near to planned mine development as well as testing areas around previous well-mineralized drill intercepts.
Figure 1: 3-D view of North Limb of the Caribou deposit, looking east with 2019 Trevali drilling along with 2018 year-end Mineral Resource classification is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/e0fc83de-687b-4c97-adca-f0ebc99516df
Assay results from the drill program are summarized in Table 1. The drill program is expected to further increase the geological confidence of the currently defined Inferred Mineral Resource on the North Limb and will support long term mine development decisions. Of particular note are holes BR-1047A, BR-1047B, BR-1048, and BR-1048A which help to define a zone of thick (±15-30m) and higher-grade (>7.5% Zn+Pb) mineralization around 2015 drill hole BR-1014A (2015-04-16_NR), see Figure 1. The large Inferred Mineral Resource currently defined on the northern portion of the North Limb requires further definition drilling to delineate its extents towards along strike as well as at depth.
Table 1: Summary of 2019 Caribou North Limb drill hole assay results. Length and SG weighted assay composites.
HOLE ID | FROM (m) | TO (m) | Interval (m) | True thickness (m) | Zn (%) | Pb (%) | Cu (%) | Ag (g/t) | Au (g/t) | |
BR-1046 | 578.60 | 584.10 | 5.50 | 2.95 | 4.30 | 1.44 | 0.25 | 49.33 | 1.07 | |
648.00 | 653.00 | 5.00 | 2.01 | 5.78 | 0.89 | 0.29 | 21.51 | 0.23 | ||
588.00 | 648.00 | 60.00 | 28.74 | 1.24 | 0.38 | 0.63 | 19.13 | 0.36 | ||
BR-1047 | 556.68 | 560.87 | 4.19 | 1.85 | 7.91 | 2.54 | 0.39 | 66.50 | 1.36 | |
BR-1047A | 542.00 | 565.00 | 23.00 | 14.23 | 5.84 | 1.93 | 0.25 | 69.25 | 1.89 | |
incl | 542.00 | 552.00 | 10.00 | 6.02 | 6.31 | 2.52 | 0.14 | 75.44 | 2.22 | |
571.24 | 573.55 | 2.31 | 1.76 | 4.57 | 1.65 | 0.24 | 50.61 | 1.36 | ||
BR-1047B | 542.19 | 571.20 | 29.01 | 19.45 | 6.24 | 2.33 | 0.27 | 63.05 | 1.62 | |
incl | 562.00 | 571.20 | 9.20 | 6.10 | 8.00 | 3.30 | 0.36 | 80.87 | 2.21 | |
BR-1048 | 527.75 | 596.49 | 68.74 | 31.85 | 7.19 | 2.57 | 0.32 | 86.45 | 2.13 | |
incl | 535.00 | 544.00 | 9.00 | 4.43 | 7.43 | 3.58 | 0.13 | 105.85 | 2.95 | |
572.00 | 577.00 | 5.00 | 2.35 | 10.75 | 3.60 | 0.30 | 91.06 | 1.77 | ||
BR-1048A | 615.00 | 624.00 | 9.00 | 3.35 | 5.35 | 1.68 | 0.32 | 42.96 | 1.60 | |
646.00 | 655.00 | 9.00 | 3.40 | 7.11 | 2.86 | 0.44 | 82.69 | 2.30 | ||
669.00 | 673.52 | 4.52 | 1.60 | 6.32 | 0.92 | 0.31 | 34.01 | 0.60 |
Table 2: Drill hole collar locations
Hole ID | Area | Easting | Northing | Elevation (m) | Azimuth | Dip | Depth (m) | Notes |
BR-1046 | North Limb | 703254 | 5271928 | 418 | 230 | -81 | 659 | |
BR-1047 | North Limb | 703254 | 5271928 | 418 | 223.7 | -79 | 591 | |
BR-1047A | North Limb | 703254 | 5271928 | 418 | 223.7 | -79 | 596 | Branch from BR-1047 |
BR-1047B | North Limb | 703254 | 5271928 | 418 | 223.7 | -85 | 587 | Branch from BR-1047 |
BR-1048 | North Limb | 703248 | 5271928 | 418 | 246 | -85 | 611 | |
BR-1048A | North Limb | 703248 | 5271928 | 418 | 246 | -85 | 683 | Branch from BR-1048 |
Regional exploration
Regional exploration during 2019 has focused on advancing regional targets on Trevali’s greenfield properties, more specifically
At
At Murray Brook South, a time-Domain Electro-Magnetic (“TDEM”) survey was completed over portions of the Murray Brook South claim in order to refine targets for drill testing in
Figure 2: Regional overview of the
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Trevali is a global base-metals mining company, headquartered in
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Email: bcreaney@trevali.com
Phone: +1 (778) 655-6070
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