お知らせ • Nov 05
Entree Resources Ltd. Announces Additional Drill Results from the 2023 Program at Hugo North Extension
Entrée Resources Ltd. provided analytical results for eight diamond drill holes (“DDH”) from the 2023 drilling program over the Hugo North Extension (“HNE”) deposit on the Entrée/Oyu Tolgoi JV Property (the “Entrée/Oyu Tolgoi JV Property”) in Mongolia. Analytical results for 14 holes were previously announced on July 18, 2024. Results for eight remaining holes from the 2023 program, as well as all surface and underground holes from the ongoing 2024 drilling program, will be reported as they become available from the Company’s joint venture partner Oyu Tolgoi LLC (“OTLLC”). 2023 Drill Hole Highlights: HNE Surface Drill Holes: EGD 174: 448 metres (“m”) grading 1.62% copper equivalent1 (“CuEq”), including 172 m grading 1.99% CuEq. EGD 1772: 143 m grading 1.17% CuEq, including 51 m grading 1.92% CuEq. HNE Underground Drill Holes: UGD 805B: 177.3 m grading 2.04% CuEq. UGD 808: 613.6 m grading 0.77% CuEq, including, 214 m grading 1.24% CuEq. UGD 813: 56 m grading 1.75% CuEq. UGD 814: 138 m grading 2.37% CuEq. 2023 HNE Drilling Results: The new results from the 2023 HNE drilling program include two surface holes that were drilled entirely on the Entrée/Oyu Tolgoi JV Property and six underground holes that were collared from existing infrastructure on the Oyu Tolgoi mining licence and drilled onto the Entrée/Oyu Tolgoi JV Property. OTLLC previously advised the Company 33 drill holes were completed at HNE in 2023. The results from 14 of those holes were reported by the Company on July 18, 2024, three holes were drilled outside of the mineralized footprint for geotechnical purposes and therefore not assayed, results from eight holes were recently made available by OTLLC and are reported below, and the remaining eight holes are still pending analytical results. Full collar and downhole survey details for each of the holes in the 2023 HNE drilling program were provided by the Company on July 18, 2024. The new drilling results include two surface holes, EGD174 and EDG177, the latter of which is the upper portion of “daughter hole” EDG177A (previously reported on July 18, 2024). Both holes were drilled steeply towards the northwest and crossed through approximately 1,350 to 1,400 m of barren, sedimentary and volcanic tuff units before intersecting the top of porphyry deposit. Starting at 1,352 m, drill hole EGD174 entered a 448 m interval of significant copper and gold mineralization, averaging 1.62% CuEq that includes 258 m within the footprint of the potential Lift 2 block cave, followed by an additional 190 m below the base of the footprint. The hole was eventually terminated at a depth of 1,800 m in strong copper-gold mineralization, which remains open at depth, and which the Company believes provides continuity for deeper, potential future lifts. 2023 Drilling Information: Surface and underground drill holes from the 2023 program were designed to achieve multiple objectives: as in-fill holes within the mineralized footprint of Lift 2 to support the next mineral resource estimate update; for geotechnical purposes in the areas outside of the mineralized footprint; and for metallurgical purposes. Several of the holes, denoted with letter suffix A, B, or C were drilled as “daughter holes” (wedges) from a “parent hole” at varying distances along the hole. Surface holes UGD174 and UGD177 targeted the northern half of Lift 2, and were designed as in-fill holes, but also for geotechnical/metallurgical purposes. Underground drill holes UGD807A, UGD807B and UGD808 were primarily geotechnical holes drilled towards the north-northeast and targeting the area east of the potential Lift 2 mineralized footprint, yet all returned long intervals of lower grade, but above the cut-off grade (0.41% CuEq) used in the last mineral resource estimate. Three additional underground holes (UGD805B, UGD813, UGD814) were drilled at moderate dips towards the northwest or northeast and after crossing onto the Entrée/Oyu Tolgoi JV Property intersected significant grades of copper and gold in the southwest corner of HNE within the potential Lift 2 footprint. The holes drilled into the mineralized porphyry intersected predominantly phyllic and potassic altered quartz monzodiorite, cut by occasional intervals of unmineralized biotite-granodiorite dikes (generally less than 10 m in drilled width). Total sulphide content is variable but averages around 5% and comprised of a mix of chalcopyrite, bornite and pyrite hosted in quartz stockworks and disseminated form. Some of the highest-grade individual assays (grading around 5% to 10% CuEq) are often hosted within hydrothermal breccias, containing a majority of disseminated and coarse bornite and chalcopyrite. Drill holes outside of the HNE mineralized footprint generally crossed an interbedded sequence of ignimbrite and augite basalt with varying amounts of advanced argillic and phyllic alteration. Mineralization is variable, but consists of about 3% sulphides, comprised of a mix of pyrite and chalcopyrite. 2024 HNE Drilling Update: During 2024, OTLLC has continued to drill at HNE with all holes targeting the potential Lift 2 mineralized footprint. As of October 31, 2024, OTLLC had advised approximately 5,287 metres of underground drilling in 23 diamond drill holes and 2,476 metres of surface drilling in four diamond drill holes had been completed. No analytical data has been received for any of the 2024 HNE drill holes, but once the complete database is received from OTLLC and reviewed by the Company the results will be reported. It is the Company’s understanding that, similar to the 2022 and 2023 drilling programs, all of the 2024 drill holes will be drilled within the current mineralized footprint or within the hanging and/or footwall rocks, with the objective to update the HNE mineral resource estimate and to conduct geological and geotechnical characterization.