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Orezone Gold Corp.

Publié le 10 juillet 2014

Positive Metallurgical and Drilling Results at Bombore

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Mots clés associés :   Burkina Faso |

Positive Metallurgical and Drilling Results at Bombore

OTTAWA, ONTARIO--(Marketwired - Jul 10, 2014) - Orezone Gold Corporation (ORE.TO) is pleased to announce an update of the ongoing feasibility work and 21,000 m drill program at its 100%-owned Bomboré Gold Project in Burkina Faso.

Scrubbed Ore Column Test Results

Final results for the initial coarse ore column test of the scrubbed saprolite ore have now been issued by Kappes, Cassiday & Associates (KCA) in Reno, Nevada. Overall gold recovery has been calculated at 88%, with all size fractions showing excellent percolation rates and gold extraction in the 80 and 90 percent range. The leach curve follows the signature 'fast leach kinetics' of the gold content typical of Bomboré ore, with the majority of gold extraction taking place within the first few days of solution application. Screen analysis on the heads and tails indicate very little, if any, degradation of the size fractions.

Testwork on a second column containing scrubbed coarse ore is nearing completion and exhibits the same excellent leach characteristics, with estimated recovery to be in the high 80 to low 90 percent gold extraction range. The column will be rinsed and sent for assays in the coming days with final results expected in August.

A second round of metallurgical tests using 2.2 tonnes of oxide core is being initiated this month at KCA. The work is designed to emulate the modified flowsheet that combines heap leaching (HL) with agitated leach tanks (CIL). The results are expected to confirm or improve upon the already excellent leaching properties of the Bomboré oxide ores. Tests will include further scrubbing of the ore for coarse column leach tests on the +0.212 mm fractions and CIL tests on the -0.212 mm fractions. Rheological and physical characteristic tests will also be performed to assist with the sizing and design of the equipment for the combined HL/CIL plant.

Heap Leach Pad Over Liner

Test results on the scrubbed crushed ore continue to show that it is acceptable for use as over liner material (drainage material on top of the liner) on the leach pad, thereby significantly reducing the capital cost of crushing and screening gravel from local quarries. The February 2014 Bomboré Preliminary Economic Assessment includes approximately $20M of total capital expenditures for gravel as over liner material. In addition to the positive compaction and percolation tests performed earlier on the coarse ore, recent abrasion tests also indicate that the material will meet the required over liner specifications. Further tests will be completed as part of the final program of metallurgical and geotechnical studies underway with KCA and Golder.

Scrubber Tests

KCA also analyzed the material specifications and process parameters of the oxide ore scrubbed for the coarse column test work with positive results. Scrubbing efficiency of >90% is realized within 3 to 5 minutes. This coincides with earlier tests carried out by Met Solve on saprolitic ores which indicated approximately 3 minutes scrubber residence time after crushing to

21,000 m Drilling Program

Since April 2014, 17,000 m of RC and 1,100 m of core drilling has been completed. The program is focused on infilling and upgrading of the oxide resource in the northern half of the deposit. The remaining 3,000 m of RC should be completed by the end of the month. Results have been received for only 130 holes or 8,600 m. An additional 29,000 m of drill results from last year's drill program have not been included in the 2013 resource estimation. Highlights of all the results not included in the latest (2013) resource estimation are as follows:

  • Core holes - 1.37 g/t is the weighted average grade of the mineralized intervals from the core holes excluded from the 2013 resource, above a lower cut-off of 0.5 g/t, with all assays cut to 5 g/t.
  • RC holes - 1.08 g/t is the weighted average grade of the mineralized intervals from the RC holes excluded from the 2013 resources, above a lower cut-off of 0.5 g/t, with all assays cut to 5 g/t.
  • A total of 607 RC holes (33,265 m) have now been reported since the 2013 resource, representing an increase of 13% with respect to the meterage included within the 2013 resource.
  • The next resource update is planned for Q1 2015 which will include the 50,000 m of drill results.

Approximately 600 m of drilling was focused on new near-surface higher grade sulphide target (P17S) located along the main shear zone trend, 2 km south of Bomboré. This zone was discovered in a previous program but required further drilling to confirm its significance and geometry. Results from 32 core and RC holes indicate a deformed and shallowly dipping granodiorite unit that averages 7.1 m in thickness (true width is approximately 85%) with an average uncut grade of 2.65 g/t (using a 0.35 g/t cutoff). The drilling extends over an area of about 1 hectare with an average depth to the mineralized unit of only 28 m; the deepest intersection is 55 m. Projecting the geology to a depth of 100 m could double the prospective area. All assays were performed using a 1kg bottle roll technique (identical to the other Bomboré samples) with indicative cyanide soluble recoveries over 95%. Although these results are interesting with grades more than double the average grade of the Bomboré resource, further drilling is not likely to occur until after the Bomboré oxide deposit is developed.

Click here for a complete list of drill results and analytical procedures referred to in this release.

About Orezone Gold Corporation

Orezone is a Canadian company with a gold discovery track record of +12 Moz and recent mine development experience in Burkina Faso, West Africa. The Company owns a 100% interest in Bomboré, the largest undeveloped oxide gold deposit in West Africa which is situated 85 km east of the capital city, adjacent to an international highway. The Company is continuing with various technical studies in order to be in a position to complete a full feasibility study and an application for a mining permit before year-end.

Carl Defilippi of Kappes Cassiday & Associates; and Tim Miller, COO, Pascal Marquis, SVP Exploration and Ron Little, CEO of Orezone, are Qualified Persons under National Instrument 43‐101 and have reviewed the information in this release. Pascal Marquis is the Qualified Person in charge of the drilling program and related analysis.

FORWARD‐LOOKING STATEMENTS AND FORWARD‐LOOKING INFORMATION: This news release contains certain "forward‐looking statements" within the meaning of applicable Canadian securities laws. Forward‐looking statements and forward‐looking information are frequently characterized by words such as "plan", "expect", "project", "intend", "believe", "anticipate", "estimate", "potential", "possible" and other similar words, or statements that certain events or conditions "may", "will", "could", or "should" occur. Forward‐looking statements in this release include statements regarding, among others; completing various technical studies for Bomboré in 2014 and their potential impact on the economic returns on the project, completing the FS and applying for a mining permit by year‐end 2014, updating the resource model and mine plan in Q1 2015, and becoming a mid‐tier gold producer.

FORWARD‐LOOKING STATEMENTS are based on certain assumptions, the opinions and estimates of management at the date the statements are made, and are subject to a variety of risks and uncertainties and other factors that could cause actual events or results to differ materially from those projected in the forward‐looking statements. These factors include the inherent risks involved in the exploration and development of mineral properties, the uncertainties involved in interpreting drilling results and other geological and geotechnical data, fluctuating metal prices, the possibility of project cost overruns or unanticipated costs and expenses, the ability of contracted parties (including laboratories and drill companies to provide services as contracted); uncertainties relating to the availability and costs of financing needed in the future and other factors. The Company undertakes no obligation to update forward‐looking statements if circumstances or management's estimates or opinions should change. The reader is cautioned not to place undue reliance on forward‐looking statements. Comparisons between any resource model and estimates with the subsequent drill results are preliminary in nature and should not be relied upon as potential qualified changes to any future resource updates or estimates.

Readers are advised that National Instrument 43‐101 of the Canadian Securities Administrators requires that each category of mineral reserves and mineral resources be reported separately. Readers should refer to the annual information form of Orezone for the year ended December 31, 2013 and other continuous disclosure documents filed by Orezone since January 1, 2014 available at www.sedar.com, for this detailed information, which is subject to the qualifications and notes set forth therein.

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Orezone Gold Corp.

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Orezone Gold est une société d’exploration minière d'or basée au Canada.

Ses principaux projets en exploration sont ZELINE 1 & ZELINE 4 et KOSSA au Niger et BOMBORE, SEGA et BONDI au Burkina Faso.

Orezone Gold est cotée au Canada. Sa capitalisation boursière aujourd'hui est 156,1 millions CA$ (124,8 millions US$, 109,3 millions €).

La valeur de son action a atteint son plus haut niveau récent le 08 avril 2011 à 5,26 CA$, et son plus bas niveau récent le 27 novembre 2015 à 0,22 CA$.

Orezone Gold possède 117 350 000 actions en circulation.

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Rapports annuels de Orezone Gold Corp.
2009 Annual Report
2008 Annual Report
Annual report 2006
Financements de Orezone Gold Corp.
13/11/2013Closes C$5M Non-Brokered Private Placement
30/10/2013Arranges C$5M Non-Brokered Private Placement
23/06/2010Arranges C$5M Private Placement for Brighton Energy
02/01/2009 Closes Private Placement, Updates Timing of Transaction wit...
Rapports Financiers de Orezone Gold Corp.
15/11/2008 Third Quarter Update
Projets de Orezone Gold Corp.
27/03/2013(Bombore)Positive Progress Report for Bombore Feasibility Study and R...
13/11/2012(Bombore)Positive Drill Results Support Further Growth at Bombore
04/09/2012(Bombore)35,000 m of Positive Drill Results Support Further Growth at...
27/08/2012(Bombore)Bombore Gold Project Reaches World Class Size
22/02/2012(Bombore)Provides Positive Update on its Bombore Gold Project
03/02/2012(Sega)Sells Sega Project to Cluff Gold for $29.6M
10/01/2012(Bombore)Reports Continued Positive Results at Bombore Gold Project
28/11/2011Brighton Expands Niger Uranium Discovery to 14 km2 of Minera...
18/08/2011Orezone Confirms Heap Leach Potential of Sulphide Resources ...
18/08/2011(Sega)Confirms Heap Leach Potential of Sulphide Resources at Sega
08/08/2011Orezone Expands Bombor\303\251 Gold Project ...
08/08/2011(Bombore)Expands Bombore Gold Project Area 60% With New Permit
26/07/2011(Bombore)Reports Higher Gold Grades and Improved Continuity at Bombor...
21/06/2011(Bombore)Bombor=E9 Gold Project Has PositivePreliminary Economic Asse...
20/06/2011Orezone Bombor\303\251 Gold Project ...
11/04/2011(Sega)Confirms Positive Metallurgical Results for Sega Gold Deposi...
24/03/2011(Bombore)Positive Drill Results at Bombore Continue to Confirm Model
23/03/2011(Bombore)Positive Drill Results at Bombore Continue to Confirm Model
24/02/2011(Zeline 1 & Zeline 4)/Brighton Makes Significant New Uranium Discovery in Niger: ...
06/07/2010(Bombore)Fourth Round of Positive Drill Results at Bombore
16/06/2010(Bombore)Positive Results Continue From Bombore Infill and Expansion ...
13/05/2010Additional PositiveInfill and Expansion Drilling Results at ...
25/03/2010(Bombore)Bombore Auger Drilling Results Indicate Possible 2.5km of Ex...
28/01/2010(Bombore)Commences $2 Million Drill Program at Bombore
05/01/2010(Sega)Increases Sega Project Gold Resources
08/12/2009(Bombore)Improves on Final Bombore Metallurgical Results
14/10/2009(Bombore)Confirms Bombore Gold Deposit is Amenable to Heap Leaching
29/07/2009(Bombore)Completes Drilling Below Surface Resources at Bombore
24/06/2009(Bombore)Orezone Confirms Mineralization at Bombore Below Surface Res...
10/11/2008(Bombore)Almost Triples Gold Resource at Bombore Project
30/06/2008(Essakane)2008 Technical report
Communiqués de Presse de Orezone Gold Corp.
04/12/2015Orezone Approved to Move from TSX to TSX-V
16/09/2015Orezone Provides Update on Bomboré Permitting and Bondi Proj...
16/09/2015Orezone Provides Update on Bombore Permitting and Bondi Proj...
21/07/2015Orezone Closes C$6.5M Investment
06/07/2015Orezone Arranges C$6.5M Investment that Includes Ross Beaty
27/01/2015Sandstorm Gold Announces 10 Royalty Agreements
27/01/2015Orezone Closes US$3 Million Financing and Secures an Additio...
27/01/2015Sandstorm Gold Announces 10 Royalty Agreements
27/01/2015Orezone Closes US$3Million Financing
24/11/2014Bombore Gold Project Feasibility Study Update
10/11/2014Orezone update on Operations in Burkina Faso
10/11/2014Orezone Update on Operations in Burkina Faso
03/11/2014Orezone update on Bomboré and Burkina Faso
03/11/2014Orezone Update on Bombore and Burkina Faso
14/10/2014Bombore Gold Project Feasibility Study Update
08/09/2014Bombore Gold Project Feasibility Study Update
10/07/2014Positive Metallurgical and Drilling Results at Bombore
04/06/2014Positive Metallurgical Test Results at Bombore
23/05/2014Orezone Gold Corporation: Results of Annual General Meeting
21/05/2014Orezone Appoints Chief Operating Officer
20/06/2013News Release
20/06/2013(Bombore)Shifts Focus of Bombore Study to Heap Leach Scenario
04/06/2013(Bondi)Positive Metallurgical and Drill Results from the Bondi Proj...
24/05/2013Results of Annual General Meeting
24/05/2013Results of Annual General Meeting
29/04/2013(Bombore)Increases and Upgrades the Bombore Gold Project Resource
04/02/2013(Bombore)Bombore FS and Resource Update Will Include +400,000m of Dri...
31/05/2012(Bombore)Bombore Drill Program Continues with Positive Results
23/05/2012(Sega)Completes the Sale of Sega to Cluff Gold for $26.5M
30/03/2012(Bombore)Completes 215,000 Drill Program at Bombore
07/02/2012to Consolidate Brighton Energy Corporation
07/12/2011Brighton Energy Makes Another Near-Surface Uranium Discovery...
12/09/2011(Bombore)Positive Results Continue at Bombore With Seven Drills Opera...
26/05/2011(Bombore)Reports Additional Positive Drill Results at Bombore Gold Pr...
16/05/2011.: Brighton Energy Discovers Additional Uranium Mineralizati...
06/04/2011Expands Board and Management Team
07/03/2011Burkina Faso is Ra
17/02/2010Brighton Energy Limited Receives Niger Uranium Permit Approv...
08/07/2009Ron Little named Ernst & Young Entrepreneur of the Year Fina...
25/02/2009IAMGOLD Completes Acquisition of Orezone
20/02/2009Obtains Final Court Approval for IAMGOLD Transaction
19/02/2009Shareholders Approve Arrangement with IAMGOLD
13/02/2009 Updates Status of Shareholder Vote
29/09/2005An emerging producer in Burkina Faso, West Africa
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