Niogold Mining Corp. is releasing the results of 30 new diamond drill holes of its resource definition program on the modelled open pit shell of the Marban deposit, located on Niogold's 100-per-cent-owned Marban Block property in the Malartic gold camp, Abitibi district, Quebec.
Drilling highlights from this set of holes include:
- 5.19 grams per tonne gold over 6.0 metres in drill hole MB-15-440 at 25 m vertical depth;
- 61.47 grams per tonne gold over 0.7 metre in drill hole MB-15-442 at 50 m vertical depth;
- 23.69 grams per tonne gold over 1.2 metres in drill hole MB-15-442 at 85 m vertical depth;
- 17.05 grams per tonne gold over 0.9 metre in drill hole MB-15-444 at 90 m vertical depth;
- 58.49 grams per tonne gold over 1.0 metre in drill hole MB-15-446 at 90 m vertical depth;
- 9.11 grams per tonne gold over 2.3 metres in drill hole MB-15-447 at 210 m vertical depth;
- 1.37 grams per tonne gold over 14.8 metres in drill hole MB-15-450 at 290 m vertical depth;
- 1.57 grams per tonne gold over 31.5 metres in drill hole MB-15-457 at 190 m vertical depth;
- 4.09 grams per tonne gold over 5.2 metres in drill hole MB-15-458 at 70 m vertical depth;
- 1.15 grams per tonne gold over 19.0 metres in drill hole MB-15-462 at 220 m vertical depth.
All of the above-listed intersections are located within the modelled open pit shell, with the exception of the second intersection in drill hole MB-15-442, which could be part of a new lens. This new series contains drill holes throughout the strike length of the deposit (sections 3500E at 4550E).
Robert Wares, Niogold's president and chief executive officer, stated: "The majority of significant drill intersections in this set of holes are at shallow depths, illustrating the potential for an open pit operation at Marban. These holes will contribute to better defining mineralized zones within the first 100 vertical metres."
With these 30 new holes totalling 7,055.3 metres, a total of 124 drill holes for a cumulative length of 37,265 metres has been released. A total of 66,000 metres of drilling has now been completed of the 70,000-metre program, which is expected to be completed by mid-August.
Technical info, quality assurance/quality control and qualified persons
Drill orientations are roughly perpendicular to the dip of mineralized zones, and true widths of mineralized zones represent a minimum 90 per cent of reported core intervals.
Diamond drill holes were drilled with NQ-size core, except for holes that traversed underground workings, which were completed using BQ-size core. The core was sealed and delivered by the drilling contractor to Niogold's facilities located at the Norlartic mine site. The core was photographed for reference, logged and mineralized sections were sawed in half. Sample lengths vary between 0.5 metre to 1.5 metres. Half-core samples were bagged, sealed and delivered to Actlabs in Sainte-Germaine Boule, Que., which is an accredited laboratory. The remaining core is stored on site for reference. Samples were assayed by the fire assay method using an atomic absorption finish on a 50-gram pulp split. A quality assurance and quality control program was implemented by Niogold and the laboratory to insure the precision and reproducibility of the analytical method and results. The quality assurance and quality control program includes the insertion of standards, blanks and field duplicates in the sample batches sent to the laboratory and a systematic reassaying of samples returning values above three grams per tonne gold by fire assay using a gravimetric finish. As well, pulps grading above 0.5 gram per tonne gold or mineralized intervals are sent to a second laboratory for check assaying.
Drill program design and monitoring, core logging, and sample preparation are being executed at Niogold's facilities in Val d'Or under the supervision of Yan Ducharme, MSc, PGeo (OGQ), Niogold's vice-president, exploration, and a qualified person as defined by National Instrument 43-101. The quality assurance and quality control program utilized is consistent with National Instrument 43-101 and industry best practice standards. This news release was prepared by Mr. Ducharme.