Windfall Lake Gold Project Drill Program Results

 

TORONTO, ON - Osisko Mining Inc. reported new results from the ongoing drill program at its 100% owned Windfall Lake gold project located in Urban Township, Abitibi, Québec. The 800,000 meter drill program combines definition, expansion and exploration drilling in and around the main Windfall gold deposit and the adjacent Lynx deposit (located immediately NE of Windfall). Significant new analytical results from 18 intercepts in 11 infill holes (at 15 meter spacings) between section 2150E - 2450E, and 4 infill/expansion holes in Zone 27 of the Windfall deposit are presented below.

Highlights from the new results include: 39.4 g/t Au over 2.4 meters in OSK-W-17-1186; 18.8 g/t Au over 4.2 meters in OSK-W-17-1154; 25.7 g/t Au over 2.6 meters in OSK-W-17-903-W1; and 7.90 g/t Au over 8.0 meters. 

True widths determinations are estimated at 65-80% of the reported core length intervals for most of the zones. Assays are uncut except where indicated. Intercepts occur within geological confines of major zones but have not been correlated to individual vein domains at this time. Reported intervals include minimum weighted averages of 3.0 g/t Au diluted over core lengths of at least 2.0 meters. All NQ core assays reported were obtained by either 1-kilogram screen fire assay or standard 50-gram fire-assaying-AA finish or gravimetric finish at ALS Laboratories in Val d'Or, Québec. The 1-kilogram screen assay method is selected by the geologist when samples contain coarse gold or present a higher percentage of pyrite than surrounding intervals. Selected samples are also analyzed for multi-elements, including silver, using an Aqua Regia-ICP-AES method at ALS Laboratories. Drill program design, Quality Assurance/Quality Control (QA/QC) and interpretation of results is performed by qualified persons employing a QA/QC program consistent with NI 43-101 and industry best practices. Standards and blanks are included with every 20 samples for QA/QC purposes by the Corporation as well as the lab. Approximately 5% of sample pulps are sent to secondary laboratories for check assay.