Tailings Project and Exploration Targets
August – 2014
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Tailings Project and Exploration Targets The El Oro Gold District - - PowerPoint PPT Presentation
Tailings Project and Exploration Targets The El Oro Gold District Mexico August 2014 1 Disclaimer The material contained in this presentation is provided solely for your general knowledge and is not intended to be a comprehensive review
August – 2014
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comprehensive review of all matters and developments concerning Candente Gold Corp. (‘Candente’) or its affiliates. Candente has taken all reasonable care in producing the information contained in this presentation. This information may still contain technical or other inaccuracies, omissions, or typographical errors, for which Candente assumes no responsibility. Candente makes no representation or warranty regarding, and assumes no responsibility for, the use, validity, accuracy, completeness, reliability or currency of any claims, statements or information in this presentation. By attending or reviewing this presentation, you agree that Candente will not be liable for any injuries, losses, expenses or damages arising from the use of or reliance on information contained in this presentation, or any inaccuracy or omission in such information or failure to keep the information current. The information in this presentation is not a substitute for
The information contained in this presentation does not constitute an offer or the solicitation of an offer for the purchase of any securities of Candente. This information is not intended in any way to qualify, modify or supplement any information disclosed under the corporate and securities laws of any jurisdiction applicable to Candente. No securities commission or similar authority in Canada or any other country or jurisdiction has in any way passed on any of the information contained in this presentation and no representation or warranty is made by Candente to that effect. Cautionary Note to U.S. Investors We advise U.S. investors that this presentation uses terms which are not recognized by the United States Securities and Exchange Commission (“SEC”), including “mineral resources”, “measured resources”, “indicated resources” and “inferred resources”. The estimation of measured & indicated resources involves greater uncertainty as to their existence and economic feasibility than the estimation of proven and probable reserves. U.S. investors are cautioned not to assume that mineral resources in these categories will be converted to reserves. The estimation of inferred resources involves far greater uncertainty as to their existence and economic viability than the estimation of other categories of resources. U.S. investors are cautioned not to assume that estimates of inferred mineral resources exist, are economically mineable, or will be upgraded into measured or indicated mineral resources. U.S. investors are cautioned not to assume that mineral resources in any of these categories will be converted into reserves. This presentation also contains information about adjacent properties on which we have no right to explore or mine. We advise U.S. investors that SEC mining guidelines strictly prohibit information of this type in documents filed with the SEC. U.S. investors are cautioned that mineral deposits on adjacent properties are not indicative of mineral deposits on our properties. 2
Joanne Freeze, B.A., B.Sc., P.Geo., President and CEO
Feasibility stage. Lead the acquisition of the El Oro gold project from Wheaton River Minerals ‐ Luismin in 2006. Guided exploration resulting in a portfolio of gold and silver prospects in Peru. Prior to Candente, Freeze worked in management in gold and copper exploration since 1981. Qualified Person for Arequipa Resources on Pierina Project, Peru 1995 to 1996.
Sean Waller, P. Eng – Vice President
exploration since 1980. Specializes in Carbonate Replacement(CRD), Epithermal Vein and Porphyry Copper Deposits. Dr. Megaw and his team are credited with the significant discoveries at Juanicipio‐Fresnillo, Zacatecas; Platosa, Durango; and Cinco de Mayo, Chihuahua. Director of MAG Silver since 2005 and Candente Resource Corp. since 2003.
Andres Milla, M.A. Ec., Independent Director
Paul H. Barry, MBA, Independent Director
Currently, Mr. Barry is engaged by Balfour Beatty Infrastructure Partners serving as CEO of Upper Peninsula Power Holding Company
Larry Kornze, P.Eng., Independent Director
International Evaluations for Barrick Gold Corporation. US Exploration Manager for Barrick Gold Exploration and responsible for the Goldstrike Mine exploration with discoveries at Betze, Meikle, Deepstar, Screamer & Rodeo. 3
EL ORO EL ORO
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July 10th, 2014 El Oro Tailings Inferred Resource contains 119,900 oz Gold and 3M oz Silver June 26th, 2014 High Gold and Silver grades confirmed for the El Oro Mine tailings May 15th, 2014 Candente Gold Appoints Paul H. Barry as Independent Director April 15th, 2014 JDS Mining completes Preliminary Study of Potential of El Oro Mine Tailings Jan 23rd, 2014 Candente Gold closes Non‐Brokered Private Placement of $746,025 July 12th, 2013 Acquired Tailings Deposits from Municipality of El Oro de Hidalgo April 30th, 2013 Development of El Oro Mining & Railway ‐San Rafael 3D gold/silver GRADE model Feb 25th, 2013 Thirty ‐ one exploration targets (9 high priority) ASTER/structural interpret March 31st, 2013 Development of a 3D gold and silver block model of the San Rafael vein segment May 1st, 2012 70% earn‐in by spending $10M in exploration Feb 14th, 2012 San Rafael Vein extended laterally to 3.5km and vertically to 500m May 11th, 2011 Gold discovered deep in the San Rafael Vein (13.7 g/t Au over 3.0m)
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historic assessments due to:
exposure from 5.6 to 6.8 hectares
Note: * Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability. All figures have been rounded to reflect the accuracy of the estimate.
Classification Tonnes Au g/ t Ag g/ t Ounces Au Ounces Ag Inferred 1,267,400 2.94 75.12 119,900 3,061,200
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Jales Tiro México ~ 5.6 Has. Jales El Oro Mining
~ 3.05 Has.
Jales Esperanza ~ 6.0 Has
English and French interests.
grade ore profitably exploited contained 0.25 oz gold Au/ton and 2‐3 oz silver Ag/ton.
acquired by Las Dos Estrellas. Higher grade backfill, pillars and intermediate veins were mined at this time. A new crushing and processing plant was built to process this ore. Most of the Mexico Mine tailings were produced from 1919 to 1925.
repayment from 1937 and the La Cooperativa de Las Dos Estrellas en el Oro y Tlalpujahua continued operating as a salvage operation mining stope fill, back fill and exploitation of insitu higher grade pillars from the San Rafael/Veta Verde Veins
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Year Company Process Regrind Rec % Au Rec % Ag Comments
1951
1 Mining Dev. Com.
Flotation 96% to ‐325 mesh 70 71 Good results however long float times and coal dust Cyanidation after calcination No to regrind 70 20 Poor results; short calcination (20min) to 600 0 C and elimination of carbon material 1959
2 Mining Cooperativa
Dos Estrellas Cyanidation after calcination No to regrind 75 22 No regrind and results similar to 1951 Cyanidation after calcination ‐200 mesh 81 30 Grinding to ‐200 mesh increases recoveries Flotation 80% to ‐325 mesh 93% to ‐325 mesh 27 49 48 41 Low recoveries compared to 1951 test work 1982
Asientos y Anexas Heap Leaching No to regrind Yes to regrind 20 20 41.33 53.33 10 day leach requirement 8 day leach required and 8 minute regrind Heap leaching after roasting No to regrind No to regrind 50 50 66.66 70.67 Roasting/chlorination to 700 0 for 30 minutes, 7 days leaching, varying conditions 1989
3 Instituto de
Metalurgia (SLP for MMM) Flotation No to regrind 13.5 13.6 Fine fraction dominant, carbonaceous material and partially oxidized on surface = poor recoveries Direct cyanidation No to regrind 50 47.82 Aggregates of mineralized material (vein?); poor recoveries; require disaggregation BEST RECOVERIES Direct cyanidation Yes to ‐325 mesh 75 82.41 Higher costs of cyanide and calcium reagents Cyanidation after roasting No to regrind 75 55.44 Roasting at 800 0 for 20 minutes
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1 Mining Development Comission 2 Cooperativa Dos Estrellas 3 Instituto de Metalurgia, Universidad de San Luis Potosi for Minera Mexico Michoacán
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benefit)
Excavator/truck reclamation; Agitated cyanide leach; Liquid/solids separation; Merrill‐Crowe gold/silver recovery and; Cyanide destruction for tails.
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Proposed Budget: Tailings Verification Drilling and Metallurgical Test work
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Schematic longitudinal section showing past historic production from the San Rafael Vein with Candente 2010‐2011 Drilling; pre‐mineral andesite sills Schematic longitudinal section showing past historic production from the San Rafael Vein with Candente 2010‐2011 Drilling
Cross Sections A to Z; Sampled (mined) portions shown roughly by blocks; Drill holes from 1993, 2010 and 2011 shown with significant intercepts displayed.
Gold Grade (ppm) Color Code
Average Gold Grade (ppm)
Sampled (mined‐out) portions shown roughly by blocks. Drill holes shown with significant intercepts displayed as disks.
Approximate Mined Thickness (m) Color Code
0.0 ‐1.0 1.0 – 6.0 6.0‐15.0 15.0‐35.0 35.0 +
Note: gold (g/t) and silver(g/t) cut away 3D models are available on website
Drill Hole ID From(m) To(m) Intercept(m) Au g/t Ag g/t SR‐93‐01 191.0 193.0 2.0 6.90 58.26
Post mineral volcanics to 125m
198.0 199.5 1.5 15.10 91.00 216.5 217.5 1.0 4.11 49.80 229.0 230.0 1.0 6.18 25.80 254.2 255.5 0.87 4.22 44.70 SR‐93‐02 167.3 168.0 0.7 3.25 49.10
Post mineral volcanics to 125m
183.5 189.5 5.9 1.51 80.05 201.5 207.0 5.5 5.40 87.00 207.0 210.5 3.5 23.20 224.00 201.0 213.0 12.0 10.10 121.49 SR‐93‐04 274.1 275.5 1.4 1.05 75.00 SR‐93‐05 263.5 266.5 3.0 0.31 146.00
Post mineral volcanics to 175m
266.5 271.0 4.5 1.77 307.00 283.0 285.0 2.0 4.00 81.00 SR‐93‐06 289.5 290.0 0.5 0.46 77.80
Post mineral volcanics to 275m
300.0 304.5 4.5 0.77 103.00 329.0 332.0 3.0 0.14 133.00 332.0 334.0 2.0 0.19 213.00 334.0 336.8 2.8 0.11 76.80 SR‐93‐07 243.0 243.5 0.5 1.07 80.00 SR‐93‐08 238.5 240.0 1.5 15.90 59.30
(volcanics to 130m depth)
240.0 241.5 1.5 10.80 66.50
The following tonnage estimations are conceptual in nature and should not be relied upon as insufficient drilling has been done to define the target under an inferred mineral resource using CIM resource category with adequate geological confidence (CIM, Nov 2010). According to the CIM Definition Standards November 2010 “An Inferred Mineral Resource is that part of a Mineral Resource for which quantity and grade or quality can be estimated on the basis of geological evidence and limited sampling and reasonably assumed, but not verified, geological and grade continuity”. Further verification drilling, to better define mineralized vein zone outlines, a recalculation of the specific gravity and further metallurgical test work is required to identify, with more certainty, the quantity and grade of the San Rafael vein target. A systematic verification drilling and sampling program should be such that continuity can be predicted with confidence and contained metals may be better known with a reasonable level of reliability. A mineral resource can be estimated for material where the geological characteristics and the continuity are known or reasonably assumed and where there is the potential for production at a profit. A qualified person has not done sufficient work to classify the historical estimate as current mineral resources or mineral reserves, and the Company is not treating the historical estimate as current mineral resources or mineral reserves.
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Tlalpujahua Mining District El Oro Mining District
Key characteristics:
ignimbrite unconformity; localized buddingtonite
shallow chalcedony
extensive fault controlled transverse silica breccias
from unique lithologic, structural, and hydrothermal controls to mineralization
stockwork); Cortaduras(gold‐rich stockwork) to horizontal controls along low angle faults?
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Setting: sediment, doming, ignimbrite flare‐up and related qfp intrusions, post mineral volcanic cap Deposit forms: vein swarm, breccia and disseminate/shear hosted (low angle faults) Ore textures: fine bands, comb, crustiform, jig saw breccia Alteration: chalcedony‐adularia‐illite‐calcite‐Kspar‐chlorite; outwards to manganese Ratios: at San Rafael Ag: Au is 8:1; an earlier sulphide rich gold‐rich event (5‐8% py) Known Metals: native gold, native silver, electrum (Au‐Ag amalgam), and Ag sulfo‐salts (Sb‐Pb); pyrargyrite (AgSbS3); and ruby silver, silver sulphides, galena, sphalerite; trace chalcopyrite Base metals: < 0.1‐1.0 % combined lead plus zinc Fluid Inclusions: salinities at 0.80 to 3.5 wt % NaCl; T 202‐3580C Notable: low sulphidation state mineralization (gold‐rich) and intermediate sulphidation state mineralization (silver and base metal rich) Higher grades: Oxidized sulphide rich veins at cross faults (50‐175 g/t Au and 150‐2064 g/t Ag‐Veta Negra, San Carlos
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