Osisko Intersects 86.7 g/t Au Over 4.3 Metres At Windfall
Mineralization Continues to be Confirmed in Caribou Extension
(Toronto, January 18, 2018) Osisko Mining Inc. (OSK:TSX. “Osisko” or the “Corporation”) is pleased to provide new results from the ongoing drill program at its 100% owned Windfall Lake gold project located in the Abitibi greenstone belt, Urban Township, Eeyou Istchee James Bay, Québec. The 800,000 metre 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 148 intercepts in 84 drill holes and 5 wedges focused on infill and expansion drilling in the Main Windfall lake deposit are presented below.
- New Underdog Zone discovered to SW
- New mineralization discovered between the Mallard Zone and Zone 27.
- New mineralization discovered near surface west of the main deposit.
Highlights from the new results include: 86.7 g/t Au over 4.3 metres in OSK-W-17-1345; 74.0 g/t Au over 2.5 metres and 29.6 g/t Au over 2.9 metres in OSK-W-17-1334; 48.6 g/t over 2.0 metres in OSK-OBM-15-565; 32.7 g/t Au over 2.8 metres in OSK-W-17-1233; 41.5 g/t Au over 2.0 metres and 24.8 g/t Au over 2.4 metres in OSK-OBM-16-678; 10.0 g/t Au over 8.1 metres in OSK-W-17-1317; 11.1 g/t Au over 6.9 metres in OSK-W-17-1125-W1; 29.2 g/t Au over 2.2 metres in OSK-W-17-1273; 11.6 g/t Au over 5.4 metres in OSK-W-17-1308; 25.2 g/t Au over 2.0 metres in OSK-W-17-1313; and 20.5 g/t Au over 2.3 metres in OSK-W-17-1225. Maps showing hole locations and full analytical results are available at www.osiskomining.com.
| Hole Number | From (m) | To (m) | Interval (m) | Au (g/t) uncut | Au (g/t) cut to 100 g/t |
Zone | Corridor |
|---|---|---|---|---|---|---|---|
| OSK-OBM-15-565 | 393.0 | 395.0 | 2.0 | 48.6 | TBD | Zone 27 – Mallard | |
| including | 394.0 | 395.0 | 1.0 | 96.9 | |||
| OSK-OBM-16-678 | 256.0 | 258.4 | 2.4 | 24.8 | Z27 | Zone 27 | |
| including | 257.5 | 258.4 | 0.9 | 65.4 | |||
| 318.0 | 320.0 | 2.0 | 41.5 | Z27 | Zone 27 | ||
| including | 319.0 | 320.0 | 1.0 | 82.8 | |||
| OSK-W-17-937-W1 | 786.4 | 788.6 | 2.2 | 3.21 | Wolf 2 | Caribou | |
| OSK-W-17-937-W2 | 749.0 | 751.5 | 2.5 | 16.8 | Wolf 2 HW | Caribou | |
| 811.0 | 813.0 | 2.0 | 9.01 | Wolf 2 | Caribou | ||
| including | 811.3 | 811.8 | 0.5 | 25.2 | |||
| OSK-W-17-978 | 492.2 | 495.0 | 2.8 | 3.04 | Caribou Ext. | Caribou | |
| OSK-W-17-989-W2 | 506.0 | 509.0 | 3.0 | 6.29 | CS1 | Caribou | |
| including | 506.0 | 507.0 | 1.0 | 16.0 | |||
| OSK-W-17-1002 | 284.0 | 286.0 | 2.0 | 5.07 | Z27 | Zone 27 | |
| including | 284.6 | 285.0 | 0.4 | 16.5 | |||
| OSK-W-17-1014 | 176.6 | 180.0 | 3.4 | 6.27 | Z27 | Zone 27 | |
| including | 178.4 | 179.0 | 0.6 | 30.0 | |||
| OSK-W-17-1051 | 51.0 | 53.4 | 2.4 | 3.94 | VNCR | F17 | |
| OSK-W-17-1052 | 721.0 | 723.3 | 2.3 | 3.81 | Z27 | Zone 27 | |
| including | 721.8 | 722.1 | 0.3 | 21.9 | |||
| OSK-W-17-1053 | 74.7 | 79.8 | 5.1 | 5.06 | Z27 | Zone 27 | |
| including | 79.2 | 79.8 | 0.6 | 38.2 | |||
| OSK-W-17-1073 | 97.2 | 101.4 | 4.2 | 3.11 | VNCR | ||
| OSK-W-17-1077 | 59.0 | 61.0 | 2.0 | 8.41 | Z27 | Zone 27 | |
| including | 59.4 | 60.0 | 0.6 | 18.0 | |||
| OSK-W-17-1125-W1 | 368.0 | 370.1 | 2.1 | 4.01 | CS3 | Caribou | |
| 445.0 | 447.0 | 2.0 | 7.57 | Caribou FW | Caribou | ||
| including | 445.0 | 446.0 | 1.0 | 15.1 | |||
| 475.0 | 481.9 | 6.9 | 11.1 | Wolf HW | Caribou | ||
| including | 479.0 | 481.0 | 2.0 | 26.5 | |||
| OSK-W-17-1125-W3 | 420.0 | 422.0 | 2.0 | 18.1 | Caribou | Caribou | |
| including | 421.0 | 422.0 | 1.0 | 36.1 | |||
| 501.0 | 503.0 | 2.0 | 10.2 | Wolf | Caribou | ||
| including | 502.0 | 503.0 | 1.0 | 19.6 | |||
| OSK-W-17-1134 | 366.8 | 369.10 | 2.3 | 16.0 | VNCR | Mallard | |
| including | 366.8 | 367.5 | 0.7 | 50.6 | |||
| OSK-W-17-1135 | 115.0 | 117.4 | 2.4 | 3.33 | Z27 | Zone 27 | |
| OSK-W-17-1139 | 77.0 | 79.0 | 2.0 | 4.06 | Shear | Caribou | |
| OSK-W-17-1140 | 326.0 | 328.4 | 2.4 | 3.94 | Vein | Caribou | |
| including | 328.1 | 328.4 | 0.3 | 29.7 | |||
| OSK-W-17-1141 | 87.0 | 91.1 | 4.1 | 4.00 | Z27 | Zone 27 | |
| OSK-W-17-1145 | 64.3 | 67.5 | 3.2 | 4.01 | Z27 FW | Zone 27 | |
| including | 66.5 | 67.5 | 1.0 | 10.2 | |||
| OSK-W-17-1159 | 538.0 | 540.0 | 2.0 | 4.99 | Caribou Ext. | Caribou | |
| OSK-W-17-1163 | 356.0 | 358.0 | 2.0 | 9.60 | No Name | TBD | |
| including | 356.0 | 357.0 | 1.0 | 19.1 | |||
| OSK-W-17-1164 | 120.7 | 123.0 | 2.3 | 3.37 | Z27 | Zone 27 | |
| OSK-W-17-1184 | 50.0 | 52.0 | 2.0 | 4.21 | Z27 HW | Zone 27 | |
| including | 50.5 | 51.0 | 0.5 | 16.8 | |||
| 164.9 | 167.5 | 2.6 | 4.64 | Z27 | Zone 27 | ||
| including | 166.6 | 167.5 | 0.9 | 13.0 | |||
| OSK-W-17-1186 | 407.5 | 410.5 | 3.0 | 12.3 | CN2 | Caribou | |
| including | 407.5 | 409.0 | 1.5 | 24.4 | |||
| 502.0 | 504.5 | 2.5 | 3.49 | Z27 HW | Zone 27 | ||
| including | 502.0 | 503.0 | 1.0 | 8.61 | |||
| OSK-W-17-1188 | 99.2 | 101.8 | 2.6 | 16.8 | Z27 | Zone 27 | |
| including | 100.2 | 100.8 | 0.6 | 67.9 | |||
| OSK-W-17-1191 | 194.2 | 197.0 | 2.8 | 13.9 | Z27 | Zone 27 | |
| including | 194.2 | 194.8 | 0.6 | 63.4 | |||
| 200.5 | 202.6 | 2.1 | 7.46 | Z27 | Zone 27 | ||
| including | 201.5 | 202.6 | 1.1 | 13.9 | |||
| OSK-W-17-1194 | 325.5 | 331.4 | 5.9 | 3.12 | New Zone | North of Mallard | |
| including | 325.5 | 326.1 | 0.6 | 23.8 | |||
| OSK-W-17-1196 | 185.0 | 187.0 | 2.0 | 15.7 | Z27 FW | Zone 27 | |
| including | 186.6 | 187.0 | 0.4 | 72.5 | |||
| OSK-W-17-1198 | 186.9 | 194.4 | 7.5 | 3.47 | Z27 | Zone 27 | |
| including | 186.9 | 188.1 | 1.2 | 12.6 | |||
| OSK-W-17-1200 | 245.1 | 248.0 | 2.9 | 3.00 | New Zone | Caribou | |
| including | 247.1 | 248.0 | 0.9 | 8.74 | |||
| OSK-W-17-1202 | 554.8 | 557.0 | 2.2 | 8.71 | Caribou Ext. | Caribou | |
| including | 554.8 | 555.6 | 0.8 | 23.2 | |||
| OSK-W-17-1203 | 269.0 | 272.0 | 3.0 | 6.76 | Mallard | Mallard | |
| including | 270.2 | 270.7 | 0.5 | 31.7 | |||
| OSK-W-17-1207 | 8.0 | 10.3 | 2.3 | 5.94 | Drake | Mallard | |
| including | 8.0 | 8.8 | 0.8 | 14.3 | |||
| 182.6 | 184.9 | 2.3 | 3.35 | Mallard | Mallard | ||
| OSK-W-17-1215 | 105.0 | 107.0 | 2.0 | 4.11 | New Zone | Underdog | |
| OSK-W-17-1217 | 14.9 | 17.1 | 2.2 | 5.47 | New Zone | TBD | |
| including | 15.6 | 16.4 | 0.8 | 14.4 | |||
| OSK-W-17-1225 | 9.0 | 12.3 | 3.3 | 5.77 | New Zone | TBD | |
| 201.3 | 203.6 | 2.3 | 9.58 | Mallard HW | Mallard | ||
| including | 201.3 | 202.0 | 0.7 | 30.3 | |||
| 245.2 | 247.5 | 2.3 | 20.5 | Mallard | Mallard | ||
| including | 245.2 | 246.4 | 1.2 | 39.1 | |||
| OSK-W-17-1227 | 926.0 | 929.4 | 3.4 | 6.56 | Wolf Ext. | Caribou | |
| including | 926.0 | 927.0 | 1.0 | 15.8 | |||
| 962.0 | 964.0 | 2.0 | 10.5 | Wolf Ext. | Caribou | ||
| 969.0 | 971.0 | 2.0 | 4.93 | Wolf Ext. | Caribou | ||
| OSK-W-17-1233 | 39.9 | 42.7 | 2.8 | 32.7 | No Name | ||
| including | 40.5 | 41.6 | 1.1 | 81.3 | |||
| OSK-W-17-1239 | 226.0 | 228.0 | 2.0 | 4.11 | Caribou | Caribou | |
| 255.2 | 258.0 | 2.8 | 10.4 | Caribou | Caribou | ||
| OSK-W-17-1247 | 326.0 | 329.0 | 3.0 | 3.00 | New Zone | Underdog | |
| OSK-W-17-1256 | 315.0 | 317.2 | 2.2 | 3.11 | Mallard | Mallard | |
| OSK-W-17-1264 | 71.1 | 74.5 | 3.4 | 6.33 | Z27 HW | Zone 27 | |
| including | 71.4 | 71.9 | 0.5 | 41.4 | |||
| 166.5 | 169.0 | 2.5 | 6.88 | Z27 | Zone 27 | ||
| including | 167.4 | 167.7 | 0.3 | 54.0 | |||
| OSK-W-17-1265 | 738.7 | 741.0 | 2.3 | 5.34 | Caribou Ext. | Caribou | |
| 940.8 | 942.8 | 2.0 | 13.0 | Z27 | Zone 27 | ||
| including | 941.2 | 942.2 | 1.0 | 25.7 | |||
| OSK-W-17-1267 | 101.6 | 104.0 | 2.4 | 3.04 | Caribou | Caribou | |
| OSK-W-17-1268 | 83.0 | 85.0 | 2.0 | 5.51 | New Zone | Mallard | |
| 161.0 | 163.0 | 2.0 | 9.39 | Drake | Mallard | ||
| 183.0 | 186.0 | 3.0 | 8.17 | Z27 FW | Zone 27 | ||
| including | 183.0 | 183.9 | 0.9 | 23.8 | |||
| 266.3 | 268.4 | 2.1 | 4.84 | Z27 | Zone 27 | ||
| including | 266.3 | 266.8 | 0.5 | 15.0 | |||
| OSK-W-17-1269 | 69.5 | 72.0 | 2.5 | 3.10 | Z27 HW | Zone 27 | |
| 117.5 | 122.0 | 4.5 | 3.69 | Z27 HW | Zone 27 | ||
| including | 117.5 | 118.0 | 0.5 | 8.01 | |||
| 134.5 | 137.5 | 3.0 | 3.09 | Z27 | Zone 27 | ||
| 146.0 | 148.4 | 2.4 | 3.47 | Z27 | Zone 27 | ||
| 175.3 | 178.0 | 2.7 | 3.33 | Z27 | Zone 27 | ||
| including | 176.0 | 177.0 | 1.0 | 7.47 | |||
| OSK-W-17-1270 | 918.2 | 926.0 | 7.8 | 3.07 | Caribou Ext. | Caribou | |
| 950.1 | 953.0 | 2.9 | 7.14 | Vein | Caribou | ||
| OSK-W-17-1273 | 155.9 | 158.0 | 2.1 | 6.72 | Z27 | Zone 27 | |
| including | 157.1 | 158.0 | 0.9 | 14.1 | |||
| 164.5 | 167.0 | 2.5 | 16.4 | Z27 | Zone 27 | ||
| including | 165.7 | 166.2 | 0.5 | 80.9 | |||
| 171.0 | 173.2 | 2.2 | 29.2 | Z27 | Zone 27 | ||
| OSK-W-17-1275 | 295.7 | 298.3 | 2.6 | 12.4 | Caribou | Caribou | |
| including | 297.8 | 298.3 | 0.5 | 53.2 | |||
| OSK-W-17-1276 | 176.0 | 178.8 | 2.8 | 12.6 | Mallard | Mallard | |
| including | 177.9 | 178.8 | 0.9 | 38.6 | |||
| 195.6 | 197.6 | 2.0 | 13.3 | Mallard | Mallard | ||
| including | 196.0 | 196.3 | 0.3 | 86.9 | |||
| OSK-W-17-1279 | 146.7 | 148.9 | 2.2 | 4.56 | Z27 | Zone 27 | |
| OSK-W-17-1281 | 264.0 | 266.2 | 2.2 | 3.24 | Caribou | Caribou | |
| including | 264.9 | 265.4 | 0.5 | 13.3 | |||
| 425.0 | 428.0 | 3.0 | 3.25 | Z27 | Zone 27 | ||
| 447.9 | 451.9 | 4.0 | 3.37 | Z27 | Zone 27 | ||
| OSK-W-17-1282 | 95.8 | 98.9 | 3.1 | 8.06 | Z27 FW | Zone 27 | |
| OSK-W-17-1288 | 613.3 | 615.9 | 2.6 | 3.44 | Caribou Ext. | Caribou | |
| OSK-W-17-1289 | 39.6 | 42.2 | 2.6 | 5.76 | Z27 FW | Zone 27 | |
| including | 41.3 | 41.8 | 0.5 | 23.4 | |||
| 314.1 | 316.7 | 2.6 | 5.05 | Mallard | Mallard | ||
| including | 315.7 | 316.4 | 0.7 | 13.8 | |||
| 368.3 | 370.8 | 2.5 | 3.22 | Mallard | Mallard | ||
| OSK-W-17-1291 | 282.0 | 284.0 | 2.0 | 3.65 | Caribou Ext. | Caribou | |
| 305.0 | 307.0 | 2.0 | 11.4 | Caribou Ext. | Caribou | ||
| including | 306.0 | 307.0 | 1.0 | 22.6 | |||
| OSK-W-17-1292 | 682.9 | 686.0 | 3.1 | 7.91 | Wolf | Caribou | |
| including | 682.9 | 683.2 | 0.3 | 21.5 | |||
| OSK-W-17-1293 | 584.7 | 590.0 | 5.3 | 3.10 | Caribou Ext. | Caribou | |
| 601.5 | 608.0 | 6.5 | 3.58 | Caribou Ext. | Caribou | ||
| 645.5 | 648.0 | 2.5 | 3.63 | Caribou Ext. | Caribou | ||
| including | 646.4 | 647.0 | 0.6 | 10.2 | |||
| OSK-W-17-1296 | 125.6 | 128.0 | 2.4 | 5.82 | Z27 | Zone 27 | |
| including | 125.6 | 126.0 | 0.4 | 23.5 | |||
| OSK-W-17-1303 | 211.0 | 213.3 | 2.3 | 3.74 | Caribou Ext. | Caribou | |
| OSK-W-17-1305 | 376.0 | 378.5 | 2.5 | 7.65 | Caribou | Caribou | |
| including | 378.1 | 378.5 | 0.4 | 40.9 | |||
| OSK-W-17-1306 | 987.0 | 989.6 | 2.6 | 14.7 | Caribou Ext. | Caribou | |
| including | 988.2 | 988.9 | 0.7 | 54.2 | |||
| OSK-W-17-1308 | 884.0 | 889.4 | 5.4 | 11.6 | Wolf Ext. | Caribou | |
| including | 888.6 | 888.9 | 0.3 | 66.7 | |||
| OSK-W-17-1312 | 43.0 | 46.5 | 3.5 | 7.56 | Z27 HW | Zone 27 | |
| OSK-W-17-1313 | 90.9 | 93.0 | 2.1 | 3.34 | Caribou | Caribou | |
| 122.0 | 125.0 | 3.0 | 5.29 | Caribou | Caribou | ||
| 211.0 | 213.0 | 2.0 | 11.3 | Z27 HW | Zone 27 | ||
| 456.0 | 458.0 | 2.0 | 25.2 | 15.0 | Vein | ||
| including | 456.5 | 456.8 | 0.3 | 168 | 100 | ||
| OSK-W-17-1317 | 182.9 | 191.0 | 8.1 | 10.0 | Z27 | Zone 27 | |
| including | 186.9 | 188.0 | 1.1 | 54.3 | |||
| OSK-W-17-1319 | 215.3 | 217.3 | 2.0 | 7.42 | Z27 | Zone 27 | |
| including | 217.0 | 217.3 | 0.3 | 22.8 | |||
| OSK-W-17-1320 | 463.0 | 465.0 | 2.0 | 11.9 | Caribou Ext. | Caribou | |
| including | 463.0 | 464.0 | 1.0 | 23.8 | |||
| 472.1 | 477.3 | 5.2 | 5.16 | Caribou Ext. | Caribou | ||
| including | 472.1 | 473.4 | 1.3 | 14.1 | |||
| 801.0 | 803.0 | 2.0 | 6.04 | Caribou Ext. | Caribou | ||
| including | 802.0 | 803.0 | 1.0 | 11.8 | |||
| OSK-W-17-1323 | 433.0 | 435.2 | 2.2 | 5.48 | Vein | Caribou | |
| OSK-W-17-1326 | 159.0 | 161.0 | 2.0 | 8.32 | Z27 | Zone 27 | |
| including | 160.0 | 161.0 | 1.0 | 16.0 | |||
| 180.0 | 183.3 | 3.3 | 6.13 | Z27 | Zone 27 | ||
| including | 183.0 | 183.3 | 0.3 | 45.1 | |||
| OSK-W-17-1332 | 25.0 | 27.0 | 2.0 | 8.27 | New zone | TBD | |
| including | 26.2 | 27.0 | 0.8 | 18.8 | |||
| OSK-W-17-1333 | 503.0 | 506.5 | 3.5 | 18.4 | Caribou Ext. | Caribou | |
| including | 504.0 | 505.0 | 1.0 | 53.8 | |||
| 593.6 | 596.0 | 2.4 | 4.85 | Caribou Ext. | Caribou | ||
| including | 593.6 | 594.3 | 0.7 | 13.8 | |||
| 628.0 | 630.4 | 2.4 | 5.89 | Caribou Ext. | Caribou | ||
| including | 628.0 | 628.8 | 0.8 | 15.3 | |||
| OSK-W-17-1334 | 338.2 | 340.7 | 2.5 | 3.31 |
