공시 • Aug 22
Pacific Ridge Exploration Ltd. Announces Inaugural Diamond Drill Program At the Chuchi Copper-Gold Project
Pacific Ridge Exploration Ltd. announced that its inaugural diamond drill program at the Chuchi copper-gold project has commenced. Chuchi is road accessible and is located 35 km to the northwest of Centerra Gold Inc.'s Mount Milligan mine in B.C. Summary of Pacific Ridge's Exploration Work at Chuchi Since optioning Chuchi from Centerra,Pacific Ridge has completed a 726 line-km helicopter-borne ZTEM geophysical survey, at 250 m line-spacing covering the entire Project, a 3D inversion model of the ZTEM survey, two Induced Polarization survey lines (6.7 line-km) in BP Zone, and 3D inversion modelling of the combined 2015 (Kiska Metals Corporation) and 2023 IP survey lines. The 2D and 3D geophysical inversion models have been compiled to review their relationships in 3D model space and compared against historical geological mapping and drilling results for an updated interpretation of the system geometry and structural controls of copper-gold mineralization in BP Zone. Based on this modelling, the Company believes that there is potential for mineralization to extend to as much as 800 m depth over the kilometre-long central trend of mineralization that follows the North Central Fault and calc-potassic alteration domain Outside of the BP Zone, Pacific Ridge has completed a reconnaissance surface sampling grid over the eastern half of the Project at 350 m sample spacing, completed mapping and sampling at the Klaw zone and completed 15 line-km of IP survey at Chuchi South . 2024 Drill Hole Planning The planned 2024 diamond drilling program at Chuchi will comprise approximately 3,000 m in five or six drill holes in the BP Zone.Drill holes will be distributed over a strike length of 800 m across the highly prospective BP Zone and will be collared near the best historical drilling results. These holes are designed to confirm these results and test them to greater depth. Drilling will also test the interpretation, from the combined 3D geophysical inversion models (ZTEM and IP) and the grade shell model of historical drilling, that BP Zone mineralization forms a tabular shaped body with a high degree of northeast-trending structural control, is steeply northwest-dipping, northeast plunging, and is deep rooted. Further, drilling will also test for evidence that the BP Zone is structurally segmented with greater preservation potential in downthrown blocks within a north-south trending fault valley on its east side where higher-level porphyry system indicators have been intersected in historical drilling. Description of the Planned 2024 Drill Holes at Chuchi: Planned 1 (azimuth 081°, inclination -60°, planned length 600 m) is collared on a historical drill trail on the northeastern side of the BP Zon), on the northern edge of the calc-potassic domain, and near the transition into the Digger subzone. Drilling will test increasing Cu-Au ratios at depth in drill hole CH-91-42, and if the latter represents a downthrown piece of alkalic lithocap alteration- mineralization. Drill hole CH-91-42 (azimuth 179.3°, inclination -74.2°, length 320.6 m, vertical depth 308.5 m) returned 28 m of 0.07% Cu and 3.61 g/t Au from 91.4 m and 42.0 m of 0.13% Cu and 0.55 g/t Au from 200.0 m within 229.2 m of 0.01% Cu and 0.61 g/t Au from 91.4 m. There are no preserved drill hole logging reports for CH-91-42. Drilling will test a deep-rooted chargeability high domain in the 3D IP model . Planned 2 (azimuth 090°, inclination -70°, planned length 600 m) is collared on a historical drill trail near the centre of the BP Zone, within the calc-potassic alteration domain, and near historical drill hole CH-91-40 (azimuth 090°, inclination -59°, length 203.1 m, vertical depth 174.5 m) which returned 40 m at 0.45% Cu and 0.41 g/t Au within 80 m of 0.30% Cu and 0.29 g/t Au from 50 m depth . The planned drill hole targets: 1. the centre-to-eastern margin of a steeply west-dipping 550 m E-W x 500 m N-S x 600 m deep stock-shaped conductivity low and magnetic high feature in the 3D ZTEM inversion model, 2. a break in chargeability high signature in the 3D IP inversion model thought to be representative of the prospective North Central Fault corridor, 3. a resistivity moderate-high gradient zone and moderate deep root feature in the 3D IP model. Planned 3 (azimuth 088°, inclination -80°, planned length 600 m) is collared on a historical drill trail at the southern side of the BP Zone, within the potassic alteration domain, and in the area of historical drill hole CH-89-07 (azimuth 180°, inclination -46°, length 210.9 m, vertical depth 151.7 m) which returned 16 m at 0.71% Cu and 1.32 g/t Au within 100 m of 0.27% Cu and 0.37 g/t Au from 38 m depth . The planned drill hole is collared 72 m SSW of the CH-89-07 collar and drills to the east. It targets: 1. the southern margin of the steeply west-dipping stock-shaped 3D ZTEM conductivity low and magnetic high feature, 2. a break in chargeability high signature in the 3D IP inversion model thought to be representative of the 070 Fault corridor, 3. a moderate-low resistivity domain towards a deep higher resistivity shoulder in the 3D IP inversion model. Planned 4 (azimuth 090°, inclination -75°, planned length 600 m) is collared on a historical drill trail at the southwestern side of BP Zone, within the calc-potassic alteration domain, and in the area of historical drill hole CH-90-27 (azimuth 265°, inclination -46°, length 304.5 m, vertical depth 219.0 m) which returned 70 m at 0.31% Cu and 0.34 g/t Au within 194 m of 0.21% Cu and 0.21 g/t Au from 32 m depth . The planned drill hole is collared 195 m west of CH-90-27 and drills in the opposite direction. It has similar targeting objectives as listed for Planned 2. Planned 5 (azimuth 300°, inclination -70°, planned length 600 m) is collared on a historical drill trail on the northeastern side of BP Zone, within the calc-potassic alteration domain, and near historical drill hole CH-90-30 (azimuth 278°, inclination -68.5°, length 272.2 m, vertical depth 253.3 m) which returned 74 m at 0.26% Cu and 0.13 g/t Au from 182 m depth . The planned drill hole is collared 40 m south of CH-90-30 and drills to the northwest. It has similar targeting objectives as listed for Planned 2 but targets the northeastern margin of the stock-shaped 3D ZTEM conductivity low and magnetic high feature; it also tests the central core and dip direction of the grade shell model of historical drilling results for BP Zone.