Interra Copper Corp. announced results from a recent geological review of the Thane Copper Gold Project. Thane is a 206 square-kilometer ("km") property that is 100% owned by Interra Copper and situated in central British Columbia, Canada, between Centerra Gold's Mt.
Milligan mine and the former Kemess mine. Highlights of Interra's exploration results include: Discovery of the Bananas showing, an approximately 200 metre ("m") long domain of chalcopyrite mineralized porphyritic syenite cut by quartz-magnetite stockwork and sheeted veins with extensive secondary copper (chrysocolla). Assay results from the Bananas showing include: Sample 18615 on the southern portion of the zone yielded 3.82% copper ("Cu") and 0.218 grams per tonne ("g/t") gold ("Au").
Samples 18620 and 18617 from near the centre of the zone yielded 7.15% Cu and 0.472 g/t Au and 1.65% Cu and 0.746 g/t Au respectively. Sample 18619 from the northern portion of the zone yielded 2.86% Cu and 0.258 g/t Au. A specialist team from Equity Exploration and Accretive Metals Advisory undertook a field review of 19 targets on the property; their findings confirm that Thane has significant alkalic copper-gold porphyry potential within a comparable geologic setting to nearby mines.
The Thane copper-gold project is located in an underexplored portion of the northern Quesnel Terrane, 11 km SE of the past producing Kemess South mine and 13 km NW of the Mount Milligan mine. During early August, a specialist team from Equity Exploration and Accretive Metals Advisory undertook a review of 19 targets within the large 206 km2 property. The team's evaluation and field observations confirmed that Thane has significant alkalic copper-gold porphyry potential within a comparable geologic setting to nearby mines.
Ten high-priority targets were recommended for advancement, of which, the newly discovered Bananas showing and the previously known Gail showing are ranked highest priority with strong copper-gold mineralized alteration systems in favorable host rocks. Follow up reconnaissance of the Bananas showing in September 2024, included preliminary delineation of the mineralized zone over an approximately 200 m strike length in exposures spanning approximately 100 vertical metres. The Bananas showing comprises a pinching and swelling 0.5 to 3 m thick domain of moderate to dense chalcopyrite bearing quartz-magnetite veins in iron-altered porphyritic syenite.
The domain is characterized by strong fracturing and locally focused shear zones. Chrysocolla, formed from oxidation of the abundant copper mineralization, covers outcrop faces and talus along the length of the showing (Figure 1). The Bananas showing is contained within a broad > 2 km2 iron oxide and clay anomaly observed from a recent ALS Goldspot hyperspectral study.
Fourteen geochemical samples were collected along 170 m of the exposed length of the showing. Results range from 0.01 to 7.16% Cu and 0.003 to 0.746 g/t Au, with anomalous concentrations of silver ("Ag") ranging from 0.13 to 27.7 g/t and molybdenum ("Mo") ranging from 3 to 156 parts per million ("ppm"). The Phase One drilling program at the Rip Copper Project ("Rip") in central British Columbia has been completed.
Two drill holes totalling 1,033.27 meters tested the northern geophysical anomaly reported by the Company in its July 31, 2024, press release. The Rip Project is situated approximately 33 km northeast of Imperial Metals' past producing Huckleberry Cu-Mo mine and Surge Copper's advanced stage Ox/Seal/Berg projects. Drill hole RP2024-001 tested to a depth of 533.40 m and targeted a magnetic high near the centre of a combined magnetic-chargeability "bullseye" that defines the target.
Drill hole RP2024-002 tested to a depth of 499.87 m targeting a section of the 1 km diameter "doughnut" shaped chargeability high (>35 mV/V) that surrounds the magnetic high. Both drill holes intersected multi-phase porphyritic intrusions, and porphyry related alteration, veining, and mineralization that are consistent with the geophysical signatures that were targeted. All core samples have been submitted to ALS laboratory in Richmond Vancouver for geochemical analysis.
Results will be announced once all results are received and validated. In 2023 the Company announced an option agreement with ArcWest Exploration Inc. ("ArcWest") to acquire an 80% interest in the RIP Cu-Mo project. Interra can earn the first tier of its interest in the project (60%) by completing staged exploration work totalling CAD 2.0 million and direct payment of CAD 100,000 and annual share payments over four years until the end of 2027.
All samples were collected by Interra staff and contractors from outcrops, packaged in polyurethane sample bags, and submitted directly to ALS Geochemical Laboratory in North Vancouver. They were prepared for analysis according to ALS method PREP-31: each sample was crushed to 70% passing 2mm and a 250g split was pulverized to better than 85% passing 75 micron mesh. Gold was tested by fire assay with atomic absorption finish on 30g nominal samples (ALS method Au-AA23).
An additional 34 elements were tested by ICP-AES using a four-acid digestion (ALS method ME-ICP61), over-limit samples for copper were retested using the same technique but with ore grade four acid digestion and a higher range of detection (method Cu-OG62).
