お知らせ • Aug 13
Aris Mining Announces High Grade Drill Results from Ongoing 2024 Exploration Drilling Program at its Segovia Operations in Colombia
Aris Mining Corporation announced the results received to date from its ongoing 2024 exploration drilling program at its Segovia Operations in Colombia, which is now 70% complete. The intersections provided in this news release include results received since the Company's previous exploration news release dated August 16, 2023, which had a data cut-off date of July 31, 2023, up to validated sample assays available as of April 1, 2024. These results are expected to be included in the Company's updated mineral resource and reserve estimates expected in the fourth quarter of 2024. The Segovia vein system is extensive, with three of the four operating mines following relatively flat lying vein systems ranging between 1.5 and 2.8 kilometres (km) along strike and extending down dip for between 2.0 and 2.7 km. To date, 80 different veins and vein splays have been identified from both surface and underground drilling and underground channel sampling. Most of these large scale structures remain open along strike and down dip. The majority of the exploration drilling is undertaken from within the existing underground mine development and support infrastructure, targeting vein extensions that require relatively lower expenditures to develop and produce. As the vein splays are located in the footwall and hangingwall of the main veins, most of the drillholes intersect multiple veins, providing a high value per drill metre in terms of identifying new mineral resources, and often results in the discovery of new vein structures. Vein intersection grades remain high after diluting the vein width to the planned mining widths for extraction using narrow vein mining methods. In addition to exploration drilling, ongoing channel samples of the veins at the actively advancing work faces also continue to provide new data to upgrade mineral resources to mineral reserves. Cristales is a historic operation that is currently being operated by a third party contractor for processing at Segovia's plant. The drilling strategy is to prove the extension of the Cristales vein at depth, which could potentially connect to an existing crosscut at El Silencio, opening up a new mining front. The new drillholes are located approximately 200 metres (m) to the south of the historic Cristales mine workings over an area of approximately 250 m by 200 m, and supplement over 3,700 newly validated historic vein intersections. These vein intersections are expected to result in new high grade inferred mineral resources. The new drillhole highlights include: 0.32 m at 25.80 g/t Au in hole CR-ES-075, 0.47 m at 7.48 g/t Au in hole CR-ES-080, 0.31 m at 15.54 g/t Au in hole CR-ES-083, 0.25 m at 137.78 g/t Au in hole CR-ES-086. Elsewhere, near mine drillholes strategically located approximately 100 m to the east and above existing vein workings at El Silencio over an area of approximately 300 m by 120 m confirm the continuity of high grade veins and were successful in extending the main vein in this area for another 500 m down dip. These intersections are expected to drive growth of high grade mineral resources, which are important for operations in the medium term. Drilling in this location was also successful in identifying a new vein in the hangingwall and intersected other new veins with orientations oblique to the main structures. These new veins will be a high priority for definition in next drilling programs. Highlights include: 0.12 m at 45.19 g/t Au in hole ES-MH14, 0.23 m at 55.22 g/t Au in hole ES-MH14-01, 0.30 m at 61.50 g/t Au in hole ES-MH11-03, 0.48 m at 61.82 g/t Au in hole ES-MH12-02, 0.39 m at 28.34 g/t Au in hole ES-MH12-04. Infill and extensional drillholes over a strike of 250 m located to the northwest of El Silencio were also successful in demonstrating continuity of the high grade veins, and are expected to result in new high grade mineral resources and reserves, adding new production areas to the operations. Two new veins were discovered in the footwall and hangingwall, and two other new veins related to a different structural trend were also discovered. These new discoveries have been added to the list of high priority targets for definition in next drilling programs. Highlights include: 0.25 m at 15.20 g/t Au in hole ES-IU-182, 0.20 m at 65.70 g/t Au in hole ES-IU-183, 0.26 m at 715.99 g/t Au and 0.13 m at 93.34 g/t Au in hole ES-IU-191, 0.20 m at 56.14 g/t Au in hole ES-IU-195, 0.49 m at 118.75 g/t Au in hole ES-IU-202, 0.14 m at 99.87 g/t Au in hole ES-IU-208. Surface drilling targeting a particularly rich vein located in shallower areas of the mine near the existing operations over a strike distance of 240 m was successful in confirming continuity of the vein from the surface. New mine development is now underway based on these successful drilling results, and with the support of an updated geological interpretation, are expected to convert to high grade mineral resources and reserves. Highlights include: 0.29 m at 536.75 g/t Au in hole MAN-ES-017A, 0.39 m at 178.24 g/t Au in hole MAN-ES-020, 0.19 m at 812.16 g/t Au in hole MAN-ES-021. Underground drillholes were strategically planned at that same high grade vein target over a strike distance of 200 m to identify new mineral resources adjacent to the current mine infrastructure and to confirm continuity at depth. This drilling was successful and is expected to extend high grade mineral resources, in addition to discovering a new vein in the hangingwall and two new veins in the footwall. Highlights include: 0.40 m at 137.80 g/t Au in hole ES-EU-141, 0.37 m at 15.37 g/t Au in hole ES-EU-145, 0.28 m at 13.13 g/t Au in hole ES-EU-154, 0.50 m at 26.93 g/t Au in hole ES-EU-158. Finally, a series of infill holes designed to upgrade and expand existing mineral resources at the Providencia mine were drilled to test the downdip extension of a major high grade vein, with successful results that are expected to drive the short and medium term mine production plans. Highlights include: 0.28 m at 29.61 g/t Au in hole MAR-IU-034, 0.29 m at 11.10 g/t Au in hole MAR-IU-041, 0.16 m at 207.79 g/t Au in hole MAR-IU-052.