Trilogy Metals Drills 83.8 Meters of 1.1% Copper at Bornite Project
VANCOUVER, Sept. 18, 2017 /CNW/ - Trilogy Metals Inc. (TSX, NYSE-MKT: TMQ) ("Trilogy Metals" or the "Company") is pleased to announce initial high-grade copper results from this summer's exploration diamond drilling program at the Bornite Project, a part of the Company's Upper Kobuk Mineral Projects ("UKMP") located in the Ambler mining district of Northwest Alaska. Sample results from the first three holes are available comprising 3,083 meters of the in-progress 10,000 meter drill campaign.
The initial 3 drill holes show thick and continuous intervals of copper mineralization and represent up to 300 meter off-sets from the Company's last round of drill holes completed in 2013, which shows that the Bornite mineralized system continues to significantly expand. The focus of this year's program is to target high-grade copper mineralization north and east of the previously identified resources and to define the edges of the mineralized system. Additional drill results are anticipated to be released regularly over the next couple of months as they become available.
At a cutoff grade of 0.5% copper the results are as follows:
- RC17-234 intersected three mineralized intervals totaling 83.8 meters averaging 1.10% copper;
- RC17-235W intersected two mineralized intervals totaling 33 meters averaging 0.90% copper; and
- RC17-236 intersected two mineralized intervals totaling 116.4 meters averaging 1.06% copper.
Results are presented in Table 1 at a cutoff grade of 0.5% copper to be comparable with previous drill results released by the Company. Results at a more selective higher grade cutoff of 1.0% copper are also presented in Table 2 to show locally higher grade intervals.
Trilogy Metals is executing this US$10 million program at Bornite, which has been funded by South32 Limited per the agreement announced on April 10, 2017 (https://Trilogy PR April 19 2017). This year's exploration at Bornite was approved by a joint Trilogy-South32 Technical Committee and is focused on drilling the extensions of mineralization last drilled by the Company in 2013.
Rick Van Nieuwenhuyse, President and CEO of Trilogy Metals commented, "The initial three step-out holes at Bornite demonstrate that high grade copper mineralization continues to the north and east of previously drilled resources as shown in Figure 1. Specifically, these three holes offset mineralization previously intersected in hole RC13-224 which intersected 236-meters of 1.9% copper. We are also seeing significant cobalt mineralization occurring as the mineral carrollite and associated with one or more stages of pyrite – particularly in the higher grade copper zones with bornite and chalcocite. More geochemical and metallurgical work is planned for the cobalt. As the Grade x Thickness Map shows in Figure 2, we have now traced the mineralized system over an area measuring approximately 2,500 meters by 1,500 meters within which we are consistently intersecting zones 100 to 200 meters thick and containing 1% to 3% copper. Our drill program is demonstrating that the Bornite mineralized system remains strong and shows no signs of letting up as we continue to drill on trend to the north and east. In addition, we are starting to see new structural trends and controls on the axis of high grade mineralization along a northwest vector. A recently completed detailed Gravity Survey is showing some very promising results and we will be integrating that information into our future targeting. We have six more holes to report on between now and mid-November and we have added a fourth drill rig to complete our planned program. We will continue to report results as they become available."
0.5% Cu Cut-off with maximum 5m internal waste - Minimum 5m interval
|Hole||From (m)||To (m)||Length||Cu (pct)||Co (ppm)||Ag (ppm)|
1.0% Cu Cut-off with maximum 5m internal waste - Minimum 4m interval
|Hole||From (m)||To (m)||Length||Cu (pct)||Co (ppm)||Ag (ppm)|
Based on the Company's previous three field seasons of exploration drilling and re-assaying of previously drilled core from Kennecott, the Company announced an updated resource estimate for the Bornite project of 5.5 Billion pounds of copper inferred resource at a grade of 2.26% Cu and 913 Million pounds of copper indicated resource at a grade of 1.02% Cu and filed a National Instrument 43-101 technical report in 2016. See the Company's press releases dated April 19, 2016 (http://Trilogy PR April 19 2016) and the Company's press release on the filing of the updated NI43-101 Technical Report for Bornite on May 16, 2016 (https://Trilogy PR May 16 2016).
The drill program and sampling protocol were managed by qualified persons employed by Trilogy Metals. The diamond drill holes were typically collared at HQ diameter drill core and reduced to NQ diameter during the drilling process. Samples were collected using a 0.2-meter minimum length, 2.5-meter maximum length and 1.7-meter average sample length. Drill core recovery averaged 91% overall and 94% within the prospective lithologies. Three quality control samples (one blank, one 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 in North Vancouver, B.C., Canada, is a facility certified as ISO 9001:2008 and accredited to ISO / IEC 17025:2005 from the Standards Council of Canada. Trilogy Metals will submit 5% of the assay intervals from prospective lithologies to an independent check assay lab.
Andrew W. West, P.Geo., Exploration Manager for Trilogy Metals Inc., is a Qualified Person as defined by National Instrument 43-101. Mr. West has reviewed the technical information in this news release and approves the disclosure contained herein.
About Trilogy Metals
Trilogy Metals Inc. is a metals exploration company focused on exploring and developing the Ambler mining district located in northwestern Alaska. It is one of the richest and most-prospective known copper-dominant districts located in one of the safest geopolitical jurisdictions in the world. It hosts world-class polymetallic VMS deposits that contain copper, zinc, lead, gold and silver, and carbonate replacement deposits which have been found to host high grade copper mineralization. Exploration efforts have been focused on two deposits in the Ambler mining district - the Arctic VMS deposit and the Bornite carbonate replacement deposit. Both deposits are located within the Company's land package that spans approximately 143,000 hectares. The Company has an agreement with NANA Regional Corporation, Inc., a Regional Alaska Native Corporation that provides a framework for the exploration and potential development of the Ambler mining district in cooperation with local communities. Our vision is to develop the Ambler mining district into a premier North American copper producer.