NorthWest Copper (TSXV: NWST) (OTCQX: NWCCF) has encountered multiple intersections of high-grade copper-gold porphyry mineralisation in drilling at Kwanika in British Columbia.
These holes extend the high-grade part of Kwanika. All five holes have intercepts of greater than 1% copper equivalent mineralisation and contain meaningful gold grades. These results reinforce the high-grade nature and continuity of this deposit. Highlights are presented below:
- K-21-210: 416.50 metres of 0.87% copper equivalent (CuEq)including 100.50m of 1.91% CuEq.
- K-21-216: 250.60 metres of 1.36% CuEq including 71.90m of 2.64% CuEq.
- K-21-218: 366.00 metres of 0.61% CuEq including 106.10m of 1.27% CuEq.
These holes are a continuation of the company’s angle hole drill programme designed to expand and improve the high-grade part of the Kwanika resource.
President and CEO, Peter Bell, said these five holes are in the “Boot” target area which forms the conceptual block cave portion of the resource as defined by the 2019 resource shape. The holes are below and down plunge from the previously released 2021 near-surface drilling, which targeted the conceptual open pit defined in the 2019 study.
“The Kwanika high-grade drill program continues to deliver exceptional results,” Mr Bell said. “The discovery of a new very high-grade style of mineralization in hole K-21-217 was really exciting for Kwanika exploration.
“This new batch of five holes is a reminder that the porphyry mineralisation at Kwanika itself is characterised by very high grades. Every hole in this release has material thicknesses of greater than 1% copper equivalent demonstrating the wide distribution of high grades throughout the deposit. In addition, hole K-21-216 includes a significant thickness of material above 2.5% copper equivalent including a significant gold contribution.”
Mr Bell said NorthWest’s goals at Kwanika in 2021 included expanding the high-grade zone and improving the grade within it by drilling angled holes across mineralised structural zones with closer-spaced drilling. All our results to date have provided results exceeding these goals.
NorthWest has focussed on the high-grade portion of Kwanika and adjacent high-grade Stardust deposit since the Company was created in March. Multiple high-grade Kwanika assay results followed releases of favourable Stardust metallurgy in April 2021 and an expanded high-grade Stardust resource in May 2021. These high-grade results, the previously released near-surface results, and drill hole K-21-217, will support an updated Kwanika resource planned for Q4 2021. We still have additional results to be received and released including additional holes from Kwanika, Stardust and East Niv.
Each drill hole reported here exhibits similar geology. Copper-gold porphyry-style mineralization is hosted by diorite and monzonite intrusions. Highest grade intervals correlate with the abundance of very well-mineralised quartz-sulphide veins that contain chalcopyrite variably accompanied by bornite, and additional disseminated mineralisation occurs in strong potassic alteration between and related to the veins. Mineralisation is mostly hypogene sulphide, but a zone of paleo-supergene mineralisation is typically present at the top of the mineralized interval. Late- to post-mineral dykes locally cut the copper-gold mineralization.
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