Trilogy Metals Reports High Grade Drilling Results at the Bornite Project
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News Release
Trilogy Metals Reports High Grade Drilling Results at the Bornite
Project
October 28, 201 9 - Vancouver, British Columbia – Trilogy Metals Inc. (TSX/NYSE
American: TMQ) ("Trilogy Metals” or the “Company”) is pleased to announce the second and
final set of assay results from this summer’s exploration diamond drilling program at the
Bornite Project, which is part of the Company’s Upper Kobuk Mineral Projects (“UKMP”) located
in the Ambler mining district of Northwest Alaska. All amounts are in USD.
The six Bornite drill holes reported below comprise approximately 4,596 meters from the
7,610-meter drill campaign which was completed in September. The results from the first four
holes at Bornite were announced on September 10, 2019. Three of the six drill holes contain
significant copper mineralization and were designed as infill holes to the 300 to 400 -meter
step-out holes completed in 2017 and 2018 . Whereas, the other three holes are step out
exploration holes.
Drilling Highlights – Bornite Project
At a cutoff grade of 0.5% copper the most recent drill results from the Bornite Project are as
follows:
• RC19-0264 intersected 20 mineralized intervals including:
o 78.9 metres averaging 2.35% copper;
o 44.7 metres averaging 1.29% copper;
o 48.1 metres averaging 1.13% copper; and
o 15.5 metres averaging 3.24% copper.
• RC19-0265 intersected 11 mineralized intervals including:
o 16.3 metres averaging 2.93% copper;
o 24.3 metres averaging 1.52% copper; and
o 12. 4 metres averaging 1.95% copper.
• RC19-260 intersected eight mineralized intervals including:
o 8.1 metres averaging 1.75% copper.
• The remaining three holes (RC19 -0262, RC19 -0263 and RC19 -0266), which are
exploration holes, did not encounter any significant mineralization.
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At a higher cutoff grade of 1.5% copper, the most recent drill results from the Bornite Project
are as follows:
• RC19-0264 intersected 18 mineralized intervals including:
o 22.8 metres averaging 2.86% copper;
o 5.1 metres averaging 11.01% copper;
o 7.2 metres averaging 5.98% copper;
o 13.0 metres averaging 1.92% copper; and
o 6.7 metres averaging 2.14% copper.
• RC19-0265 intersected 10 mineralized intervals including:
o 8.7 metres averaging 4.58% copper;
o 12.4 metres averaging 2.01% copper; and
o 8.9 metres averaging 2.38% copper.
James Gowans, Interim President and CEO of Trilogy Metals commented , “One of the factors
that drew me to become involved with the Company is the fact that the Bornite Project is one
of the highest-grade copper projects in the world. As an engineer, who had constructed high-
quality mines throughout the world , the Bornite Project has many affinities to some of the
world class assets that I have worked on, specifically the size and grade. I look forward to
advancing this project, which nicely complements our other high-grade project at Arctic.”
The 2019 drilling budget of $ 9.2 million for Bornite was funded entirely by South32 Limited
(ASX, LSE, JSE: S32; ADR: SOUHY) (“South32”), which funding represents the third and final
payment under the Company’s option agreement (as amended, the “Option Agreement”) with
South32 and maintains the Option Agreement in good standing.
This year’s program at Bornite was comprised of 1 0 drill holes totaling approximately 7,610
metres through a combination of infill and expansion drill holes in and around the known
resource. The first set of results from four drill holes was released on September 10, 2019
(https://trilogymetals.com/news/2019/trilogy-metals-reports-drilling-results-from-newly-
discovered-zone-at-the-sunshine-prospect-and-drilling-results-at-the-bornite-project).
RC19-0262, RC19-0263 and RC19 -0266 were all exploration holes designed to test targets
identified by various geophysical methods away from the existing resource. RC19-0262 was
designed to test the far east side of the deposit following up on a district-wide Versatile Time
Domain Electromagnetic (“VTEM”) anomaly identified during the spring 2019 VTEM/Z – Axis
Tipper Electromagnetic (“ZTEM”) survey; RC19-0263, on the far west side of the deposit was
testing a gravity anomaly identified during the 2017 field program; and RC19-0266 was testing
the south -end of the South Reef mineralization where copper mineralization (azurite,
malachite) is observed at the surface of Iron Mountain.
On September 1, 2019, Trilogy Metals completed its summer exploration drilling program at
Bornite and Sunshine and geotechnical activities at its Arctic Project. Additional drill results
from the Arctic Project and the Sunshine prospect are anticipated to be released over the next
few weeks as they become available.
Results for Bornite are presented in Table 1 at a cutoff grade of 0.5% copper to be comparable
with previous drill results released by the Company. All but hole RC19 -0264 were drilled
normal to stratigraphy and therefore the intercepts can be considered to be true widths. Hole
RC19-0264 was drilled at a northeast azimuth to intersect a moderately southwest dipping
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mineralized carbonate vein set identified in previous oriented drill holes and is oblique to the
main stratigraphically controlled mineralization. Results at a more selective higher-grade cutoff
of 1.5% copper are also presented in Table 2 to show locally higher-grade intervals. Table 3
shows drill hole locations. Figure 1 shows the location of the drill holes on a plan map and
Figure 2 shows a cross -section through drill hole RC19-0264 and Figure 3 shows a cross -
section through drill hole RC19-0265.
Table 1 - 0.5% Cu cut-off with maximum 3 m internal waste – Minimum 1.5 m interval
Hole From (m) To (m) Length (m) Cu (%) Co (%)
RC19-0260
652.05 655.77 3.72 0.62 0.010
664.59 672.69 8.1 1.75 0.010
814.12 815.69 1.57 0.82 0.001
856.66 858.62 1.96 0.55 0.014
864.29 865.93 1.64 0.69 0.013
869.3 871.54 2.24 0.72 0.019
899.23 900.85 1.62 0.62 0.004
907.59 911.83 4.24 1.37 0.015
RC19-0262 No Significant Mineralization
RC19-0263 No Significant Mineralization
RC19-0264
228.98 231.35 2.37 0.75 0.001
383.4 391.68 8.28 0.73 0.020
394.92 410.83 15.91 0.53 0.015
420.02 468.13 48.11 1.13 0.020
471.88 516.61 44.73 1.29 0.015
522.41 530.35 7.94 0.81 0.011
533.4 543.71 10.31 0.89 0.008
549.16 595.1 45.94 0.81 0.008
600.04 603.5 3.46 0.54 0.029
610.88 629.61 18.73 0.59 0.008
640.25 643.81 3.56 0.70 0.010
648 653.64 5.64 0.46 0.013
660.04 676.3 16.26 0.93 0.010
680.95 694.18 13.23 1.06 0.016
718.73 797.66 78.93 2.35 0.017
801.32 816.82 15.5 3.24 0.028
827.4 835.37 7.97 0.73 0.007
841.56 845.82 4.26 0.63 0.015
864.41 865.93 1.52 0.76 0.009
923.54 927.21 3.67 0.73 0.012
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Table 1. Continued
Hole From (m) To (m) Length (m) Cu (%) Co (%)
RC19-0265
520.6 523.34 2.74 2.82 0.030
534.51 542.37 7.86 1.59 0.004
560.53 572.92 12.39 1.95 0.015
576.8 580.83 4.03 2.54 0.014
594.8 611.09 16.29 2.93 0.078
628.19 629.88 1.69 0.72 0.005
633.68 657.93 24.25 1.52 0.010
667.67 678.14 10.47 0.99 0.007
682.14 687.45 5.31 1.85 0.007
696.83 698.69 1.86 2.44 0.002
RC19-0266 No Significant Mineralization
Table 2 - 1.5% Cu cut-off with maximum 3 m internal waste – Minimum 1.5 m interval
Hole From (m) To (m) Length (m) Cu (%) Co (%)
RC19-0260 665.78 668.73 2.95 3.08 0.019
RC19-0262 No Significant Mineralization
RC19-0263 No Significant Mineralization
RC19-0264
436.79 449.76 12.97 1.92 0.036
475.29 477.29 2.00 1.75 0.018
480.43 485.87 5.44 1.97 0.008
488.9 495.58 6.68 2.14 0.007
528.61 530.35 1.74 1.55 0.009
537 538.83 1.83 1.66 0.007
559.76 561.82 2.06 2.22 0.010
661.77 663.58 1.81 1.59 0.014
685.95 687.63 1.68 1.83 0.018
722.58 727.99 5.41 2.44 0.021
731.52 733.45 1.93 2.23 0.008
740.7 745.24 4.54 2.29 0.015
752.86 775.68 22.82 2.86 0.032
781.87 786.99 5.12 11.01 0.006
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Table 2. Continued
Hole From (m) To (m) Length (m) Cu (%) Co (%)
RC19-0264 801.32 802.95 1.63 1.62 0.005
809.63 816.82 7.19 5.98 0.055
RC19-0265
520.6 522.27 1.67 3.71 0.041
536.06 537.07 1.01 9.06 0.004
564.03 572.92 8.89 2.38 0.018
578.51 580.83 2.32 3.61 0.021
598.6 607.32 8.72 4.58 0.139
635.51 637.49 1.98 2.51 0.020
645.57 657.93 12.36 2.01 0.013
671.82 673 1.18 2.68 0.001
684.03 687.45 3.42 2.41 0.005
696.83 698.69 1.86 2.44 0.002
RC19-0266 No Significant Mineralization
Table 3 – Bornite Drill Hole Locations
Hole East (m) North (m) Elevation (m) Azimuth Dip Length
RC19-0260 590464 7440760 319 206 -77 947
RC19-0262 591218 7439500 435 206 -77 915
RC19-0263 588910 7440860 211 206 -80 738
RC19-0264 589837 7440408 246 34 -65 960
RC19-0265 590631 7440377 292 206 -75 748
RC19-0266 589256 7438650 508 220 -70 288
Mineralization within the Bornite deposit occurs as a series of “Reefs” hosted by both the Upper
and Lower Bornite Carbonate sequences separated by generally unmineralized phyllite unit s.
The Cu-Co mineralization at Bornite occurs in three distinct carbonate zones, the Upper Reef,
the Lower Reef and the South Reef. All three zones were drill tested this year.
Mineralization is typically observed as breccia matrix replacement and is generally dominated
by chalcopyrite and sometimes by bornite with chalcocite – particularly in the higher -grade
zones. Mineralization can also be observed as vein and replacement zo nes containing
chalcopyrite and calcite/dolomite gangue. These styles of mineralization were observed in all
holes mentioned in this press release.
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Figure 1- Map Showing Location of 2019 Drilling Program at Bornite
QA/QC Program Bornite
The drill program, sampling protocol, and data verification were managed by qualified persons
employed by the Company. Diamond drill holes were typically collared at PQ (internal diameter
of 85 millimeters) and reduced to HQ (internal diameter of 63.5 millimeters) during the drilling
process. Samples were collected using a 0.2 -metre minimum length, a 2.5 -metre maximum
length and a 1.9-metre average sample length. Drill core recovery averaged 93% for Bornite
drill core. Three quality control samples (one blank, one certified standard and one duplicate)
were inserted into each batch of 20 samples. The drill core was sawn, with half sent to ALS
Minerals in Fairbanks for sample preparation and the sample pulps forwarded to ALS's North
Vancouver facility for analysis. ALS Minerals is an independent company certified as ISO
9001:2008 and accredited to ISO / IEC 17025:2005 from the Standards Council of Canada.
The assay results for the primary and quality control samples were reviewed by an independent
database manager and passed with good inferred quality. The Company will submit 5% of the
assay intervals from prospective lithologies to an independent check assay lab.
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Figure 2 – Cross Section of Bornite Drilling Showing RC19-0264 Results
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Figure 3 – Cross Section of Bornite Drilling Showing RC19-0265 Results
Qualified Persons
Andrew W. West, Certified Professional Geologist, Exploration Manager for Trilogy Metals Inc.,
is a Qualified Person as defined by National Instrument 43 -101. Mr. West has reviewed the
scientific and technical information in this news release and approves the disclosure contained
herein.