공시 • Jun 17
Rupert Resources Reports Further Drilling from Ikkari Extending Mineralisation in the West and Below 450M
Rupert Resources Ltd. reported new drill results from its Ikkari prospect, the focus of its ongoing exploration programme at the 100% owned Pahtavaara Project in the Central Lapland Greenstone Belt, Finland. The mineralised strike length at Ikkari is at least 650m in total with mineralisation on all sections intersected to a depth of at least 300 to 500m. Highlights: Hole 121063 demonstrated multiple zones of higher grade gold mineralisation re-emerging at depthin the western section of Ikkaricontained within a broad intercept of 1.9g/t gold over 142m; Hole 121028 intersected 3.1g/t gold (“Au”) over 76m from 248m as part of the infill program in the central portion of the discovery and a step back hole121030 beneath this intersected two strongly mineralised zones of 3.7g/t gold over 77m from 245m and 2.8g/t Au over 65m from 346m; Hole 121029 is a shallow step out hole to the northwest and intersected 2.1g/t Au over 25m from 124m; Hole 121032 intersected mineralisation both at surface and in multiple zones including 1.6g/t Au over 74m from 396m, with mineralisation extending to >450m vertical meters. Mineralised system atIkkari remains open in all directions. Partial results from hole 121063 (assays pending from the upper and lower parts of the hole) demonstrate increasing grade with depth in this western part of the deposit. Shallower holes previously drilled on this section, suggested narrowing of the mineralised zone (hole 120100 - 2.4g/t Au over 22m from 265m (200m vertical) and 2.4g/t over 32m from 333m (255m vertical), see release January 28, 2021), but these results from 121063 indicate that the mineralised zone widens again at depth and includes high-grade intercepts: 2.1g/t Au over 19m, from 328m; 6.4g/t Au over 10m from 367m (including 57g/t Au over 1m), 7.9g/t Au over 14m from 412m (including 18g/t Au over 4m), and 1.0g/t Au over 43m from 514m. The vertical depth of the mineralised zone now extends to 445m on this section and remains open. Further results from infill sections in the central part of Ikkari confirm continuity of grade to depths of ~350m vertical. Infill holes 121028 and 121030 reinforce mineralisation to these depths, beneath previously reported holes 121024, 121025 and 121026 (see release 20/04/2021). Similarly, hole 121032 extends mineralisation to nearly 400m vertical on the adjacent section, with 1.6g/t Au over 74m from 396m including high-grade parts such as 8.4g/t Au over 6m and including 21.4g/t Au over 1m at 445m. Hole 121029 further confirms mineralised intercepts in the west of the Ikkari deposit to a depth of 100m vertical, with further drilling planned in this area to extend mineralisation further west and to depth. Hole 121033 was drilled to validate shallow grade in the centre part of Ikkari and successfully demonstrated a well-mineralised zone at only 40m below glacial till cover. Hole 121035 also tracked shallow mineralisation in the eastern part of the deposit, with 1.0g/t Au over 18m at 50m below till cover sediments. Drilling continues with further infill sections being completed across the deposit, as well as selected deeper holes, that will contribute to a resource estimation later in the year. To date, 39,000 metres have been drilled at Ikkari in 107 holes, with results reported for 75 holes. Drilling is also ongoing at other Area 1 prospects as part of the continuing new target generation programme. Notes to table: The coordinates are in ETRS89 Z35 and all holes are surveyed at 3m intervals down hole and all core is orientated. Mineralisation at Ikkari is characterised by intense alteration and deformation. Gold is associated with fine-grained disseminated pyrite within planar quartz-carbonate veins and /or disseminated in the host rocks, commonly as fine-grained visible gold. Mineralisation is hosted by sedimentary rocks overprinted by albite-sericite alteration, and strongly foliated chlorite-altered mafic-ultramafic rocks. A broader, variably mineralised alteration zone comprising magnetite ± hematite ± tourmaline ± K-feldspar ± fuchsite is also present. Holes demonstrate strong foliation, shearing, and veining that is predominantly parallel to the dominant structural fabric and gold appears to be concentrated in sedimentary intercalations associated with zones of structural disruption at lithological boundaries, represented by irregular, cross-cutting vein associations and brittle fracture in albite-altered rocks. The regional structural data collected so far suggest a subvertical, broad and linear structure, within which cross-cutting fractures and variably dipping lithologies, as well as possibly folded bedding, appear to have controlled the introduction of gold-bearing fluids and associated alteration zones. In general, alteration and structure appear to be sub-vertical, with lithologies generally dipping ~70 degrees north. Review by Qualified Person, Quality Control and Reports: Dr Charlotte Seabrook, MAIG, RPGeo. Exploration Manager is the Qualified Person as defined by National Instrument 43-101 responsible for the accuracy of scientific and technical information in this news release. Samples are prepared by ALS Finland in Sodankylä and assayed in ALS laboratories in Ireland, Romania or Sweden. All samples are under watch from the drill site to the storage facility. Samples are assayed using fire assay method with aqua regia digest and analysis by AAS for gold. Over limit analysis for >10 ppm Au is conducted using fire assay and gravimetric finish for assays over >100ppm Au. For hole 120071 all mineralised samples were submitted for screen fire assays with gravimetric finish. For multi-element assays Ultra Trace Level Method by HF-HNO3-HClO4 acid digestion, HCl leach and a combination of ICP-MS and ICP-AES is used. The Company’s QA/QC program includes the regular insertion of blanks and standards into the sample shipments, as well as instructions for duplication. Standards, blanks and duplicates are inserted at appropriate intervals. Approximately 5% (5%) of the pulps and rejects are sent for check assaying at a second lab. Base of till samples are prepared in ALS Sodankylä by dry-sieving method prep-41, and assayed by fire assay with ICP-AES finish for gold. Multi-elements are assayed in ALS laboratories in either of Ireland, Romania or Sweden by aqua regia with ICP-MS finish. Rupert maintains a strict chain of custody procedure to manage the handling of all samples. The Company’s QA/QC program includes the regular insertion of blanks and standards into the sample shipments, as well as instructions for duplication.