Download - CRK Exploration AGM May 2011
Apr 11, 2023
Gold Deposits in the Pine Creek Orogen Gold Deposits in the Pine Creek Orogen Containing >10t or 300,000 ozContaining >10t or 300,000 oz
Deposit Mil Tonnes Grade g/t Oz
• Mount Todd 298 0.80 7,667,000*
• Union Reefs 38.1 1.99 2,431,561• Rustlers Roost 30.2 0.90
875,200*• Cosmo Howley 10.4 2.80
935,300• Enterprise 7.2 2.70 623,724• Brocks Creek 7.9 2.01
510,570• Tom’s Gully 0.7 8.70
251,680*• Woolwonga 5.0 2.84
453,936• Chinese Howley 9.4 1.49
451,718• Maud Creek 10.3 3.07
1,017,000*• Spring Hill 13.6 0.80 350,000*• Goodall 4.3 2.40
331,796Total 435.2 1.13 15,869,442
Minus Mt Todd 137.2 1.86 8,203,847
• over 250 gold occurrences discovered to date
• primarily mined as surface oxides
Only 12 Deposits Containing >10t AuCrocodile Gold controls 9 of them
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300km
OBJECTIVES 2011 - 2012OBJECTIVES 2011 - 2012• Replace and increase reserves to 1 million ounces
(currently 650,000 oz)- emphasis on higher grades
• Replace and increase resources, both indicated and inferred to 6.5 million ounces (currently 5 million oz)– emphasis on higher grades
• Discover “new” precious metal deposits
• Assess the Company’s 2,700km2 land position
• Negotiate for non-CRK properties with defined resources – must make economic sense
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BURNSIDE, UNION REEFS, PINE CREEK AND MOLINE TENEMENTSBURNSIDE, UNION REEFS, PINE CREEK AND MOLINE TENEMENTS
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Burnside
MolineUnion Reefs
Pine Creek
PRIORITIESPRIORITIES• Define and increase resources at West Lode – Cosmo. Upgrade
Inferred resources at Cosmo East Lode to Indicated• Define high-grade resources at Union Reefs for underground mining• Upgrade and further define resources at Iron Blow and Mt Bonnie –
massive sulphide deposits important to CrocGold• Upgrade and further define resources at Maud Creek• Upgrade resources along the Cosmo-Howley Trend for continuation
of Mine Plan • Explore Moline and Burnside Areas in 2011-2012• Find “NEW” precious metal deposits
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COSMO MINECOSMO MINE
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Reserves: 3.1Mt @ 4.2 g/t Au for 420,000 oz
Resources: Indicated, 5.3Mt @ 4.6 g/t Au for 776,000 ozInferred, 5.6Mt @ 3.7 g/t Au for 676,000 oz
Initial Underground Development
Western Lodes
Eastern Lodes
Bird’s eye View
Discovered 1873, mined 32,500 oz 1879-1915, 1987-94 two pits produced 550,000 oz from 7.7Mt grading 2.3g/t
COSMO MINE – WEST LODESCOSMO MINE – WEST LODES
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COSMO MINE - EAST LODECOSMO MINE - EAST LODE
Upgrade Inferred to indicated
Define New Inferred
Exploration target
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Stewart Highway
AEM
Conductive/magnetic Horizon
Identified Gossan
Outside Exploration - CosmoOutside Exploration - CosmoConductive/Magnetic Targets Associated With the Conductive/Magnetic Targets Associated With the
Cosmo TrendCosmo Trend
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INFERRED RESOURCESINFERRED RESOURCES
Kazi, Bridge Creek, Bons Rush, Western Arm 6,394,500t @ 2.15g/t, 273,200 oz
2011 - Drill programs to upgrade from Inferred to Indicated ounces. Hand over to Mine Planning for optimization. 3,000m diamond drilling, 2000m RC
Greek Deposits – 2011 drill programs to define resources
Cosmo
25km
DEPOSITS ON THE COSMO – HOWLEY TRENDDEPOSITS ON THE COSMO – HOWLEY TREND
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UNION REEFSUNION REEFS
A 3D view of Prospect Claim and Crosscourse pits with the various wire-framed lodes. The light blue lode is the Main Lode, the red are secondary lodes wire-framed at both Crosscourse and Prospect Claim.
The Blue lode is the E Lens which was the major +4g/t ore zone mined in Crosscourse. The lode plunges ~60° N below Crosscourse .
Crosscourse pit
Prospect pitLooking NE
Exploration TargetsFor Underground
Mining
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Historic reports modeled 144,000t @11.7g/t Au to very limited depths. Widths are 4.0-4.5m
Resources: 8 depositsIndicated: 239,000t @ 2.4 g/t AuInferred: 3,740,00t @ 1.7 g/t AuFor 204,200 ounces
PINE CREEK DEPOSITSPINE CREEK DEPOSITSReserves
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Town of Pine Creek•Mined since 1890’s•Approx 750,000 oz produced
•Reserves – 5 deposits2.99Mt @ 1.7 g/t Au for 162,000 oz
•Resources – 8 depositsIndicated – 5.53Mt @ 1.62 g/t Au for 288,600 ozInferred – 2.35Mt @ 2.42 g/t Au for 183,200 oz
North Gandys Longitudinal SectionNorth Gandys Longitudinal Section
Inferred Resources: 482,000t @ 2.9g/t for 45,300 oz
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Exploration Target
7.0m @10.2g/
t19.5m @
9.3g/t
3.0m @12.2g/
t
south north
MASSIVE SULPHIDESMASSIVE SULPHIDES• An excellent target for precious metals – oxide caps (up to 20-30m thick)
can contain significant gold and silver values• Significant copper and precious metals can form under the oxide cap• Not previously targeted in the Pine Creek Orogen, in fact historical records
indicate “iron blows” were shunned as they were thought to be devoid of gold.
• Hypothetical Target: length 2,000m x 20m wide x 30m thick x SG 3.8 = 4.6 Mt x7 g/t Au = 1million oz.
• Easily found with airborne geophysics, follow stratigraphic horizons, find one and there is significant potential to find more
• Example - Bisha deposit in Eritrea, currently producing 1,000 oz/day @ 7- 8g/t Au at $300/oz
• Examples in the area, Iron Blow, Mt Bonnie, Mt Ellison, Evelyn (Moline
area, 83,000t @12% Pb+Zn and 260g/t Ag = 7.2g/t Au eq)14
BASE METAL/PRECIOUS METAL TARGETSBASE METAL/PRECIOUS METAL TARGETS
Iron Blow
Mt Bonnie
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Mt Ellison
Historic Resource650,000t - 1.7g/t Au, 279g/t Ag = Au eq 9.3g/t or 194,000ozplus 9%Zn, 2%Pb, 0.5%CuOxide Cap previously mined110,00t @ 7g/t Au and 230g/t AgAu eq = 13.3g/t Au or 47,000oz Au
MOUNT BONNIEMOUNT BONNIE
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Airborne geophysical signature – strong AEM conductor with a distinct magnetic anomaly
VTEM
Aeromagnetics- tilt derivative
IRON BLOWIRON BLOW• Historic Production• 10,000t oxide @ 9g/t Au and 250g/t Ag• = Au eq 15.8g• 25,000t sulphide (supergene) @ 7g/t Au and 360g/t
Ag = Au eq 17g• Total production Au eq = 18,747oz
• Current Inferred Resources• 3,175,000t @ 2.1g/t Au, 101g/t Ag, 3.3% Zn, 0.76% Pb, 0.19% Cu• Au eq = 4.85g or 495,000oz (only Au and Ag considered)
PLAN
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Interpreted section
What to look for
MAUD CREEK DEPOSITMAUD CREEK DEPOSITResourcesIndicated - 9,288,000t @3.1g/t Au for 935,000ozInferred - 1,072,000t @2.4g/t Au for 82,000ozUsing a 1.0g/t Au cut-off
•Indicated Resource -Greater than 4.5g/t Au – 3.1 Mt @ 6.3 g/t for 628,000oz
•Partially refractory – metallurgical testing indicates 90-95% recovery by floatation with concentrates grading between 4 and 5 opt.
•Near the town of Katherine – 8km haul road to paved highway
•Significant asset to Crocodile Gold
•North south trending, good widths, excellent configuration for underground mining
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Deposit
Maud Creek Pit looking south
MAUD CREEK DEPOSITMAUD CREEK DEPOSITIndicated Indicated 9.3Mt @ 3.1g/t and Inferred 1.07Mt @2.4g/t9.3Mt @ 3.1g/t and Inferred 1.07Mt @2.4g/t
Mined 173,600t @3.32g/t Au – 18,500oz
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MAUD CREEK DEPOSITDrill program planned to explore at depth and increase resources - 2011.
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MAUD CREEKInterpreted Geology
andExploration Targets
Maud Creek
Deposit
Exploration Target
2011•Resource Review•Diamond Drilling to verify and increase resources on the Main Zone•Airborne Geophysical Survey•Exploration of targets to increase resources
AIRBORNE GEOPHYSICAL SURVEY AREASAIRBORNE GEOPHYSICAL SURVEY AREAS3,700 line km - Scheduled for mid-June
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•Combined AEM and magnetometer survey
•Geotech VTEM system- state of the art
•Includes Moline and Maud Creek tenements
Woolwonga
Mt. Ellison
Brocks Creek
Cosmo Mine Mt. Bonnie
Bons Rush
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SUMMARYSUMMARYPlanning on 4 surface diamond drills and one RC rig as well as 2
underground drill rigs•Cosmo, Union Reefs, Maud CreekCosmo, Union Reefs, Maud Creek – 20,000m of surface diamond drilling and 2,000m of RC drilling to upgrade Inferred to Indicated Resources - increase Reserves. Underground rigs to operate at Cosmo throughout 2011.•Precious Metal/Base Metal Deposits – Precious Metal/Base Metal Deposits – 10,000 meters of diamond drilling in order to increase resources•Pine Creek Pine Creek – 2,000m diamond drilling and 2,000m of RC drilling to increase resources•Other Deposits Other Deposits – 6,000m of diamond drilling and 15,000m of RC drilling to increase resources for open pit mining and convert resources to reserves•38,000m of diamond drilling, 19,000m of RC drilling plus RAB in 2011•3,700 km of airborne geophysical survey•$10 - $12 Million budgeted
Apr 11, 2023