お知らせ • Oct 23
IAMGOLD Corporation Announces Assay Results from 2024 Nelligan Drilling Program
IAMGOLD Corporation announced assay results from the 2024 drilling program completed at its Nelligan Project (100% owned by IAMGOLD) confirming the extension of the mineralized zones of the deposit. In addition, the Company has provided an updated mineral resource estimate for the Monster Lake Project (100% IAMGOLD) in order to refresh the 2018 NI 43-101 technical report. Both projects are located in the Chibougamau region in central Quebec, Canada. Highlights of the updated Monster Lake Mineral Resource Estimate: · An updated Mineral Resource estimate for Monster Lake was completed to refresh the 2018 NI 43-101 technical report. An updated NI 43-101 report will be filed on SEDAR within 45 days of this news release. · Indicated Mineral Resources: 239,000 tonnes averaging 11.0 g/t Au for 84,200 ounces of gold; and · Inferred Mineral Resources: 1,053,000 tonnes averaging 14.4 grams g/t Au for 488,500 ounces of gold o Monster Lake Mineral Resource estimate saw an upgrade of 84,200 ounces from previous inferred into new indicated resources and a 32% increase in inferred resources. · Monster Lake continues to have potential for future resource expansion. Nelligan Drilling Program Results IAMGOLD is reporting assay results from seventeen (17) diamond drill holes totaling 13,476.8 metres completed as part of the 2024 exploration program on Nelligan between February 4 and July 25, 2024. This total includes fifteen holes completed in the resource area of the Nelligan deposit and two exploration holes testing targets in the northern portion of the Nelligan property. Few holes were recollared due to excessive deviation. The 2024 diamond drilling program was designed to expand the deposit in the eastern part at depth of the deposit and complete some in-fill drilling in selected areas to improve resource classification from inferred to indicated. Mineralization associated with the estimated Mineral Resources has been intersected over a strike length of more than 1.8 kilometres and to a depth of 350 to over 500 vertical metres. The mineralized system of Renard remains open along strike and at depth. An exploration target located to the north of the currently defined Mineral Resource area was tested for the presence of additional zones of mineralization, and while altered and sheared volcano-sedimentary rocks were intersected, results were not significant. Next Steps The 2024 diamond drilling program has successfully extended the Nelligan deposit in its shallow plunging extension to the East (below 500 metres vertical depth) and has confirmed the increasing width of the Footwall Zone forming the north part of the deposit mineralized sequence. These results are currently incorporated into the deposit model and will support an updated Mineral Resource estimate anticipated for year-end Mineral Resources disclosure. The next phases of diamond drilling will aim to complete a set of infill and/or expansion drilling depending on the updated Mineral Resources Estimate results and to continue to improve resources classification. Technical studies will continue to advance metallurgical testing and other engineering studies. Regional exploration activities and future exploration programs will continue and will be guided by the ongoing incorporation and compilation of field exploration data to refine geological, geochemical and structural models to help identify and prioritize additional targets for evaluation on the larger project land package. The Nelligan project is underlain by a portion of the Caopatina segment of the North Volcanic Zone of the Abitibi Belt of the Superior Province. The property is centered on the E-W Druillette syncline with sediments of the Caopatina Formation bounded to the north and to the south by volcanic rocks of the Obatogamau Formation. The North and South portions of the property are occupied by granodioritic to tonalitic intrusions. The project is transected by numerous regional and local structures and deformation zones which can be important in the localization of gold mineralization. Gold showings of the area are observed broadly as two styles of mineralization: 1) Quartz-sulphide vein type, and 2) disseminated sulphide (pyrite) mineralization in hydrothermally altered units. Mineralization observed on the Nelligan deposit is dominated by the latter and is characterized by hydrothermal alteration of the host meta-sedimentary units displaying variable carbonatization, sericite, phlogopite and pervasive silicification; and associated with widespread disseminated pyrite, varying from 1% to locally 15%, trace molybdenite and occasionally fine grains of visible gold. As of December 31, 2023, estimated Mineral Resources at the Nelligan deposit are comprised of 74.5 million tonnes of Indicated resources grading 0.84 grams of gold per tonne for 2.0 million ounces of contained gold and 142.6 million tonnes of Inferred resources grading 0.85 grams of gold per tonne for 3.9 million ounces of contained gold. Monster Lake Update Mineral Resources Estimate IAMGOLD is also reporting an updated Mineral Resource estimate for the Monster Lake project. The Mineral Resource estimate for the Monster Lake project (using a US$1,800 per ounce gold price) comprises: · 239,000 tonnes of indicated Mineral Resources averaging 11.0 g/t Au for 84,200 ounces of gold; and · 1,053,000 tonnes of inferred Mineral Resources averaging 14.4 g/t Au for 488,500 ounces of gold. The estimate was completed following the Canadian Institute of Mining, Metallurgy and Petroleum ("CIM") Definition Standards incorporated by reference in National Instrument 43-101 Standards of Disclosure for Mineral Projects ("NI 43-101"). The estimate also follows the CIM MRMR Best Practice Guidelines (2019). Relative to the 2018 initial mineral resources estimate which comprised 1,109,700 tonnes of inferred resources averaging 12.14 grams of gold per tonne for 433,300 contained ounces, the current updated Mineral Resources increased by 84,200 ounces in the Indicated Resources and by 55,200 ounces in Inferred Resources, with an increased gold price of $1,800 per ounce (compared to $1,500 per ounce in 2018), and an increased calculated cut-off grade from 3.5 g/t Au to 4.1 g/t Au due to increasing mining costs compared to 2018.