Slide 1: The Saramacca Gold Deposit, A New Orogenic Gold Discovery in the Guiana Shield
The Saramacca Gold Deposit, A New Orogenic Gold Discovery in the Guiana Shield AMEC Round Up 2018, Vancouver Authors: Caroline Laplante, Exploration Country Manager, Suriname Samuelle Gariepy, Senior Exploration Geologist, Rosebel Gold Mines Craig MacDougall, SVP, Exploration l TSX: IMG l NYSE: IAG
Slide 2: Forward Looking Statement
Forward Looking Statement This presentation contains forward-looking statements. All statements, other than of historical fact, that address activities, events or developments that the Company believes, expects or anticipates will or may occur in the future (including, without limitation, statements
Slide 3: Qualified Persons & Technical Information
Qualified Persons & Technical Information The mineral resource estimate, including verification of the data disclosed, has been completed by SRK Consulting (Canada) Inc (“SRK”) and reported in accordance with NI 43-101 requirements and CIM Estimation Best Practice Guidelines. The resource estimate w
Slide 4: Talk Outline
Talk Outline • Regional Context • Rosebel Operation • Property Geology • Exploration History • Saramacca Deposit Setting • Mineral Resources • Next Steps 4
Slide 5: Reconstructed Guiana and Leo-Man Shields - Regional Gold Endowment
Reconstructed Guiana and Leo-Man Shields - Regional Gold Endowment Birimian - Africa ~ 320Moz Rosebel - Saramacca Guiana Shield ~ 140Moz Caution: illustrative resource endowment only 5
Slide 6: Regional Geology – Guiana Shield
Regional Geology – Guiana Shield Archean Basement - Imataca Complex Rosebel Transamazonian Orogeny - TTG & Greenstone Belts (2.26-2.13Ga) - Pull-Apart Basins & Granitic Magmatism (2.11-2.08Ga) Late - Transamazonian - High Grade Metamorphism - Plutono - Volcanism Anorogenic Events • Gold deposit / oc
Slide 7: Rosebel Operations - Suriname
Rosebel Operations - Suriname Began full production in 2004 Acquired from Cambior in 2006 Operations: 8 deposits, 6 pits Production: ~ 4.8Moz Reserves1 : 3.7Moz @1.0 g/t Au Resources1: M+I: 9.3Moz @ 0.9 g/t Au Inf: 2.7Moz @ 1.0 g/t Au QV-hosted orogenic gold deposit 1: Reserves a
Slide 8: Historical Production vs. Grade
Historical Production vs. Grade Mill expanded Depletion of oxide ore (14mtpa) g / t Au koz 8
Slide 9: Property Geology
Property Geology RGM exploration Concession RGM Option Agreement Rosebel Exploitation Concession Overman Deposit Rosebel Deposits Saramacca Deposit 9
Slide 10: Exploration Upside
Exploration Upside Location Map (combined Lidar) Rosebel North Trend Rosebel South Trend ROSEBEL MINE Headley’s Reef Concession Saramacca Gold Trend Sarafina Concession Gold Deposit Gold Showing Saramacca Concession Saramacca Deposit
Slide 11: Exploration History
Exploration History Company Dates Work Golden Star Resources 1994 - 2005 • Airborne magnetics & (GSR) radiometric survey • Geochemistry: stream, soils and deep auger • 24 DDH’s (1307m) GSR – Newmont JV 2006-2012 • IP survey • Deep Auger • 66 DDH’s (13,713m) IAMGOLD 2016-2017 • 2017 RC and DDH’s (38,
Slide 12: Gold-rich drainages
drainages Gold-rich Rosebel 25km Some drill pads 12
Slide 13: Deep Weathering Profile
Deep Weathering Profile (NOT TO SCALE) Ferricrete Colluvium Mottled Clay & 2m Mottled saprolite colluvium Saprolite 2m 1.7m saprolite 13
Slide 14: Historical Drilling - Selected Results on Au-in-Auger Geochem
Historical Drilling - Selected Results on Au-in-Auger Geochem ssmls GMDH-061 22.0m at 10.71 Au g/t GMDH-038 13.50m at 4.72 Au g/t 5.50m at 8.20 Au g/t 9.00m at 0.90 Au g/t GMDH-013 12.02m at 6.52 Au g/t 24.00m at 1.46 Au g/t GMDH-039 MA007 9.50m at 6.28 Au g/t 8.00m at 1.11 Au g/t 15.20m at 3.93 Au
Slide 15: 2016 - Twin Diamond Drill Hole Program
2016 - Twin Diamond Drill Hole Program SMDD16-05: 10.5m @ 2.20g/t Au From 42.0m GMDH012: 10.7m @ 1.96g/t Au from 42.6m SMDD16-02: 18m @ 3.39g/t Au from 0.0m SMDD16-01: 10.5m; @ 2.76g/t Au From 0.0m GMDH038: 17.5m @ 3.69g/t Au from 0.0m MA003: 11.0m @ 2.71g/t Au from 0.0m SMDD16-03: 29.0m @ 2.31g/t A
Slide 16: Deposit Setting
Fault Zone Deposit Setting N • Gold mineralization associated with a major brittle-ductile NW trending vertical fault zone located at the contact between Pillowed Basalt massive and pillowed basalt units • Multiple mineralized structures Brokolonko with main fault and associated sub parallel shear z
Slide 17: 2016-2017 Drilling Highlights
2016-2017 Drilling Highlights SMDD17-084 20m @ 4.26g/t Au 19.5m @ 9.66g/t SMDD17-133 45.4m @ 2.38g/t Au SMDD17-074 32.6m @ 4.05g/t Au 17.8m @ 6.65g/t Au SMDD17-130 N SMDD17-079 46.5m @ 3.07g/t Au SMDD17-166 16.8m @ 7.04g/t Au 34.5m @ 2.23g/t Au* SMDD17-077 SMDD17-122 60.5m @ 40.9g/t Au 15.0m @ 5.45g
Slide 18: Faya Bergi
SMDD16-011:8.5m @ 5.35g/t SMDD16-042: 55.5m @ 1.99g/t Supergene enrichment SMDD16-011: 33.0m @ 2.22g/t SMDD16-011: 18.0m @ 5.44g/t SMDD17-074:10.5m @ 1.44g/t 100m SMDD17-156: 29.5m @ 1.02g/t SMDD16-002: 22.5m @ 2.79g/t SMDD17-002: 17.7m @ 2.51g/t SMDD16-002: 13.5m @ 3.24g/t SMDD16-002: 18.0m @ 5.35g
Slide 19: Supergene enrichment in duricrust and upper regolith facies
Supergene enrichment in duricrust and upper regolith facies 6.0 cm Duricrust 0.8 g/t Au 4.6 g/t Au 1.5 g/t Au 3.6 g/t Au 2.1 g/t Au 1.4 g/t Au 0.2 g/t Au SMDD16-016 : From 0m: 8m @ 2.3 g/t Au 19 (Section 550W)
Slide 20: Oxide mineralization: generally soft white clay and saprolite
Oxide mineralization: generally soft white clay and saprolite 6.0 cm Massive clay 54.3m: part of a 1.5m interval @ 10.3 g/t Au 0.10 g/t 12.7 g/t 1.0 g/t 1.4 g/t 9.0 g/t 10.3 g/t 0.2 g/t *All grades in g/t Au SMDD16-027 : From 49.5m: 12.15m @ 4.5 g/t Au 20 (Section 300W)
Slide 21: Fault Zone - Brittle Features
Fault Zone - Brittle Features SMDD17-068 246.7m • Cataclasites (fault breccias 247.2m with/without hydrothermal infill) 248.2m • Clay gouges SMDD17-032 • Fractured zones (gravel, 216.3m broken rock) • Striated fault slips (graphitic) 220.1m SMDD17-085 SMDD16-025 21
Slide 22: Fault Zone - Ductile Features
Fault Zone - Ductile Features SMDD16-042 199.0m 204.6m • Foliation, flattening & stretching 206.6m Saramacca_201705-023.jpg • Minor folding Saramacca_201705-208.jpg 85.2m SMDD16-037 SMDD16-156 255.1m • Shear foliation NE SW 297.8m 85.5m Alteration band Saramacca_201705-185.jpg Saramacca_201705-093.j
Slide 23: Hydrothermal Alteration
Hydrothermal Alteration • Classic mafic rock hydrothermal alteration pattern: • Outer: Chlorite-calcite halo (magnetite destruction). • Inner: Muscovite (sericite), dolomite, pyrite, (albite?), gold. In Basalt In Amygdalar Basalt SMDD17-075 SMDD16-008 Sericite Py + Main Faya Bergi Fault -- Alteratio
Slide 24: Gold Mineralization
SMDD17-074 Gold Mineralization Py 322.0m 18.68 g/t SMDD17-079 Dolomite ∆ 276.5 3.20g/t Py – Au ++ 325.8m 11.7 g/t Py Dolomite ∆ 332.8m Py – Au ++ 16.70 g/t 277.0 3.20g/t 335.5m 0.19 g/t 278.0 6.54g/t 340.0m 0.04 g/t Saramacca_201705-126.jpg 280.2 Gold Py 5.53g/t SMDD17-122 Saramacca_2017-05-011.jpg
Slide 25: Typical Mineralized Sequence
Typical Mineralized Sequence 5.45 g/t Au /15.0m 0.03 g/t 0.66 g/t 1.99 g/t 9.62g/t 8.70 g/t 3.86 g/t 3.86 g/t 5.08 g/t 4.67 g/t 0.13 g/t 0.07 g/t Sharp Contact Amygdular Basalt Unaltered Pillow Hydrothermal Breccia Cataclasis breccia Basalt Sharp Contact VG 103.0m 108.7m 124.7m 125.3m 126.6m 112.1m
Slide 26: Resource Estimation Summary
Resource Estimation Summary Data base: 307 diamond & reverse circulation drill holes totaling 47,000 metres › IMG: 217 DD & RC holes totaling 37,700 metres (80% of total) › 32,250 assay intervals & 2,350 SG determinations Modelling: Wire frames created for dominant lithologies, mineralized struc
Slide 27: Resources Constrained by Conceptual Pit
Resources Constrained by Conceptual Pit Pit Optimization Parameters N • Pit slopes: 30 – 45° (sap to fresh) • Metal Recoveries (%): 97 (lat/sap), 76 (trans), 82 (fresh) • Mining: 95% mining recovery, 5% dilution Optimized Pit Shell 27
Slide 28: Mineral Resource Statement – Saramacca (as at August 28, 2017)
Mineral Resource Statement – Saramacca (as at August 28, 2017) Cut-off Grade Tonnage Grade Contained Au Category Weathering Zone (g/t Au) (‘000 t) (g/t Au) (koz) Laterite 0.25 2,372 1.20 91 Indicated Saprolite 0.25 5,573 2.43 436 Transition 0.35 2,526 2.17 176 Fresh 0.45 3,973 2.49 318 Total Indicat
Slide 29: Block Model with Interpolated Gold Grades
Block Model with Interpolated Gold Grades Continuous Envelope of lower grade mineralization along Fault Zone with Higher Grade “Shoots” SE NW Open Fault Zone SMDD16-47 Higher grade shoots presenting exploration Longitudinal Section targets at depth VG (looking northeast) 100m 29
Slide 30: Next Steps - Development
Next Steps - Development Mine Development • Infrastructure planning underway: › Ore transport options / transportation corridors › Waste rock disposal and stockpiles › Site roads and infrastructure › Infrastructure capital requirements Metallurgical Testing • Refine recovery assumptions • Test crush
Slide 31: Thank you
Looking to the West and… and to the Future Thank you Saramacca Exploration Camp 31