Lavras Gold

Orca Gold Increases Indicated Resources by 24% at the Block 14 Gold Project in The Republic of The Sudan

VANCOUVER, BRITISH COLUMBIA--(Marketwired - Jan. 29, 2018) - Orca Gold Inc. (TSX VENTURE:ORG) ("Orca" or the "Company") is pleased to announce a new Mineral Resource Estimate for the Company's Block 14 Gold Project in the Republic of the Sudan.

Highlights*

  • The updated Mineral Resource Estimate of the Galat Sufar South ("GSS") and Wadi Doum deposits comprises an Indicated resource of 72.7 Mt grading 1.30g/t Au for 3.05 Moz of gold and an Inferred resource of 19.8 Mt grading 1.2g/t Au for 0.75 Moz of gold
  • Drilling at GSS in 2017 successfully resulted in an increase of Indicated resources at 0.6 g/t cut off of 588 koz Au representing an increase of 24% over the February 2017 Mineral Resource Estimate (see Company News Release on February 2, 2017)
  • 368 koz of Inferred Resources have been added to the current model
  • The new Mineral Resource Estimate is based on 98,754m of drilling in 688 holes
  • For the first time, a silver grade is reported comprising an Indicated resource of 72.7 Mt grading 1.71g/t Ag for 3.99 Moz of silver and an Inferred resource of 19.8 Mt grading 1.6g/t Ag, for 1.05 Moz of silver

*The Mineral Resource Estimate is reported at a 0.60 g/t gold cut-off grade, based on the Revised PEA average cut-off grade calculation (News Release, May 30, 2017).

Mineral Resource Estimate

The Mineral Resource Estimate was undertaken by MPR Geological Consultants of Perth, Western Australia ("MPR") as part of the Feasibility Study in progress. MPR estimated mineral resources for the GSS and Wadi Doum deposits using Multiple Indicator Kriging ("MIK") based on mineralised domains interpreted by MPR and Orca.

The new Mineral Resource Estimate is based on an additional 12,449m of diamond drilling in 34 holes, assayed sections of a further 15 geotechnical core holes and 2,806m of reverse circulation ("RC") drilling in 14 holes completed at GSS. The resource dataset now comprises 98,754m of drilling in 688 holes. No drilling was completed at Wadi Doum in this first phase of the ongoing programme.

Samples used for the results described herein were prepared and analyzed by fire assay using a 50 gram charge at the ALS Chemex facility at Rosia Montana in Romania in compliance with industry standards. Field duplicate samples were taken and blanks and standards are added to every batch submitted.

Results of the Mineral Resource Estimate are shown below at a range of cut-off grades:

Table 1: Block 14 Mineral Resource Estimate, Effective Date January 20, 2018

  Deposit Cut Off Indicated Inferred
Mt Au g/t Ag g/t Au Koz Ag Koz Mt Au g/t Ag g/t Au Koz Ag Koz
  Galat Sufar South 0.30 119.0 0.92 1.20 3,525 4,585 37.4 0.8 1.1 939 1,341
0.40 98.2 1.04 1.31 3,293 4,122 28.5 0.9 1.2 839 1,097
0.50 82.2 1.16 1.41 3,063 3,720 22.3 1.0 1.3 749 898
0.60 69.5 1.27 1.51 2,839 3,368 17.8 1.2 1.3 670 762
0.70 59.0 1.38 1.61 2,621 3,049 14.4 1.3 1.4 600 652
0.80 50.4 1.49 1.70 2,414 2,758 11.8 1.4 1.5 537 566
0.90 43.2 1.60 1.79 2,216 2,491 9.8 1.5 1.6 482 493
1.00 37.0 1.70 1.88 2,028 2,244 8.1 1.7 1.6 432 430
1.10 31.8 1.81 1.97 1,850 2,015 6.8 1.8 1.7 386 375
1.20 27.2 1.92 2.06 1,683 1,805 5.7 1.9 1.8 346 328
 
  Wadi Doum 0.30 5.4 1.37 5.04 239 876 6.0 0.7 3.6 135 695
0.40 4.4 1.61 5.44 228 770 3.9 0.9 3.9 112 489
0.50 3.7 1.84 5.77 218 684 2.8 1.1 4.1 95 368
0.60 3.2 2.05 6.06 208 618 2.0 1.3 4.4 82 283
0.70 2.8 2.25 6.33 200 563 1.5 1.5 4.7 71 224
0.80 2.4 2.44 6.57 192 517 1.1 1.7 5.0 62 182
0.90 2.2 2.62 6.78 186 480 0.9 2.0 5.3 56 152
1.00 2.0 2.79 6.96 179 447 0.7 2.2 5.6 50 130
1.10 1.8 2.95 7.12 174 419 0.6 2.4 5.9 46 113
1.20 1.7 3.11 7.27 169 394 0.5 2.6 6.2 43 100
 
  Combined 0.30 124.4 0.94 1.37 3,764 5,461 43.4 0.8 1.4 1,074 2,036
0.40 102.6 1.06 1.49 3,521 4,892 32.4 0.9 1.5 951 1,586
0.50 85.9 1.19 1.60 3,281 4,404 25.1 1.0 1.6 844 1,266
0.60 72.7 1.30 1.71 3,047 3,986 19.8 1.2 1.6 752 1,045
0.70 61.8 1.42 1.82 2,821 3,612 15.9 1.3 1.7 671 876
0.80 52.8 1.53 1.92 2,606 3,275 12.9 1.4 1.8 599 748
0.90 45.4 1.65 2.03 2,402 2,971 10.7 1.5 1.9 538 645
1.00 39.0 1.76 2.14 2,207 2,691 8.8 1.7 1.9 482 560
1.10 33.6 1.87 2.25 2,024 2,434 7.4 1.8 2.0 432 488
1.20 28.9 1.99 2.37 1,852 2,199 6.2 2.0 2.2 389 428

Notes: The Mineral Resource has been prepared in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum "CIM Definition Standards for Mineral Resources and Mineral Reserves" (CIM, 2014). Numbers may not add up due to rounding.

Results of the Mineral Resource update are shown below by oxidation category at a cut-off grade of 0.6g/t:

Table 2: Block 14 Mineral Resource Estimate by Oxidation

  Deposit Oxcat Indicated Inferred
Mt Au g/t Ag g/t Au koz Ag koz Mt Au g/t Ag g/t Au koz Ag koz
  Galat Sufar South Oxide 9.9 1.30 1.41 413 447 1.0 1.0 1.1 32 35
Trans 12.5 1.19 1.32 477 531 1.6 1.0 1.1 51 58
Fresh 47.1 1.29 1.58 1,949 2,390 15.2 1.2 1.4 587 669
Total 69.5 1.27 1.51 2,839 3,368 17.8 1.2 1.3 670 762
 
  Wadi Doum Oxide 0.4 2.88 5.00 39 68 0.2 2.3 3.6 17 26
Trans 0.1 2.76 5.23 13 24 0.0 1.5 2.1 2 3
Fresh 2.6 2.68 7.24 224 605 1.7 2.0 5.8 115 327
Total 3.2 2.05 6.06 208 618 2.0 1.3 4.4 82 283
 
  Combined Oxide 10.3 1.36 1.55 452 515 1.2 1.2 1.5 49 61
Trans 12.6 1.20 1.35 490 555 1.6 1.0 1.1 53 61
Fresh 49.7 1.36 1.88 2,173 2,995 16.9 1.3 1.8 702 996
Total 72.7 1.30 1.71 3,047 3,986 19.8 1.2 1.6 752 1,045

Notes: Defined under Canadian National Instrument 43-101 ("NI 43-101"), Standards of Disclosure for Mineral Projects. Numbers may not add up due to rounding.

The recent drill programme has resulted in significant advances in the understanding of the geology at GSS. A three-dimensional lithological model has now been developed providing a more accurate framework for the Mineral Resource Estimate and further exploration. Drilling will resume at GSS by the end of January 2018 to continue the conversion of Inferred resources to Indicated category based on this new lithological model. The combined GSS strike length is 3.5km (see Figure 1) and the mineralisation remains open in all directions.

Drilling is also planned at Wadi Doum to extend the resource at depth and follow up on a number of shoots that are expected to add further higher-grade material to the deposit.

Commenting on the new Mineral Resource Estimate, Richard Clark, CEO and Director of Orca Gold, said "the recent drilling at GSS has successfully increased the indicated resource at GSS. The conversion of inferred resources and the addition of new resources at GSS supports continued drilling to expand the scope of this exceptional deposit even further. Our resource expansion programme will also extend to the Wadi Doum deposit with an objective to increase the tonnage of higher grade material that will be mined in the early years of production. We look forward to further announcements based on ongoing drilling culminating in the delivery of the Feasibility Study in early Q2 2018."

"FIGURE 1: GSS January 2018 Resource Wireframes"
Orca Gold 1 29 2018

About Orca Gold Inc.

Orca Gold Inc. (TSX VENTURE:ORG) is a Canadian resource company focused on exploration and development opportunities in Africa, where it is currently focused on the development of its 70%-owned Block 14 project in the Republic of the Sudan. The Company has an experienced board of directors and management team and a strong balance sheet.

The technical contents of this release have been approved by Hugh Stuart, BSc, MSc, a Qualified Person pursuant to National Instrument 43-101. Mr. Stuart is the President of the Company and a Chartered Geologist and Fellow of the Geological Society of London.

The Mineral Resource estimate was carried out by Mr. Nicholas Johnson of MPR Geological Consultants of Perth, Western Australia who is considered to be independent of Orca Gold Inc. Mr. Johnson is a member in good standing of the Australian Institute of Geoscientists and has sufficient experience which is relevant to the commodity, style of mineralization under consideration and activity which he is undertaking to qualify as a Qualified Person under National Instrument 43‐101. Mr. Johnson consents to the inclusion in this press release of the information, in the form and context in which it appears. 

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