Energizer Resources Reports 43-101 Mineral Resource Estimate for its Green Giant, Madagascar, Graphite Property
The Molo deposit is located in the Green Giant Graphite project area, and is part of the joint venture (JV) property with Malagasy Minerals Limited in Madagascar. Energizer has a 75% ownership interest and is the operator of the project.
The graphite mineral resource was prepared by Desmond Subramani, Pr.Sci.Nat.(400184/06) and John Hancox, Pr.Sci.Nat.(400224/04), independent Qualified Persons with Caracle Creek International Consulting (Pty) Ltd (CCIC) of Johannesburg, South Africa. A Technical Report in compliance with National Instrument (NI) 43-101 will be filed on SEDAR within 45 days of this release. CCIC has verified the information in this release.
Mineral Resource Estimate
The mineral resource estimate is based on 48 drill holes (total 9551 metres) and 18 trenches (total 3637 metres) drilled by Energizer, at an average spacing of 100 metres along strike and 50 metres along dip. Three mineralised zones were interpreted and modelled for the resource calculation. A ‘Low Grade’ zone is based on the graphitic gneiss lithological boundary, within which an eastern and western ‘High Grade’ zone occurs. ‘High Grade’ zones are based on a 6.0% C threshold as a guideline. The block model was developed using Datamine StudioTM software. Blocks are 40 metres long, 10 metres wide and 10 metres high. Various cut-off grades were calculated for the model, and are listed in the table provided below. All grades are reported as percentage carbon (%C).
- Indicated resources totalling 84.04 Million tonnes (Mt) grading 6.36% C, above a 2% C cut-off grade.
- Inferred resources totalling 40.34Mt grading 6.29% C, above a 2% C cut-off grade.
- Mineralised zones in the resource estimation, start from the surface and continue to a maximum depth of 385 metres, with a total extension of 1630 metres. The zones remain open along strike and at depth.
- Two ‘High Grade’ zones occur on the western and eastern flanks of the Molo deposit, with a combined total Indicated resource of 60.17 Mt, grading 8.1% C, above a 4% C cut-off grade.
- Values displayed in the table are undiluted and “in-situ” as no economic parameters, such as mining, milling or metallurgy recovery have been applied to the values. As such, economic viability is yet to be established.
Resource Table for Molo Deposit inclusive of ‘Low’ and ‘High” grade zones |
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|
Indicated Resources |
Inferred Resources |
||
% C Cut-off |
Tonnes |
C% |
Tonnes |
C% |
0.50 |
84 695 805 |
6.32 |
40 725 804 |
6.25 |
1.00 |
84 592 371 |
6.33 |
40 679 513 |
6.25 |
1.50 |
84 387 713 |
6.34 |
40 562 609 |
6.27 |
2.00 |
84 041 923 |
6.36 |
40 339 436 |
6.29 |
2.50 |
83 056 941 |
6.41 |
39 563 716 |
6.37 |
3.00 |
81 050 035 |
6.50 |
38 329 848 |
6.49 |
3.50 |
78 191 613 |
6.62 |
36 153 216 |
6.68 |
4.00 |
74 044 160 |
6.78 |
33 500 374 |
6.92 |
4.50 |
67 070 222 |
7.03 |
30 391 779 |
7.19 |
5.00 |
56 835 242 |
7.44 |
27 197 419 |
7.47 |
5.50 |
48 607 341 |
7.82 |
23 810 769 |
7.79 |
6.00 |
43 402 393 |
8.07 |
20 627 295 |
8.10 |
6.50 |
39 357 804 |
8.26 |
18 990 582 |
8.27 |
7.00 |
34 860 275 |
8.46 |
17 052 556 |
8.44 |
7.50 |
28 488 283 |
8.72 |
14 778 049 |
8.62 |
8.00 |
21 195 711 |
9.05 |
10 740 950 |
8.94 |
8.50 |
14 975 866 |
9.40 |
7 470 018 |
9.26 |
9.00 |
9 500 675 |
9.78 |
4 136 308 |
9.70 |
9.50 |
5 596 149 |
10.15 |
2 253 455 |
10.08 |
10.00 |
2 716 659 |
10.60 |
1 132 428 |
10.43 |
Interpolation Parameters
Ordinary Kriging was used to interpolate the block model using two metre sample composites. Each zone had its search ellipse parameters to interpolate the grade. A primary search ellipse (based on the geo-statistical characteristics of the deposit model) of 70 metres along strike, 40 metres down dip and 10 metres across strike was applied. A single value of 2.36t/m3 density was used for all models. Capping values of 13% C and 15% C were applied to the assays for the eastern and western ‘high’ grade zones respectively.
To report the resource and interpret the zones limits, a cut-off grade of 2% C and 4% C were applied to constrain the model for ‘Low’ and ‘High’ grade zones respectively.
Classification
Classification of the resource used the following criteria as guidelines:
- The geological interpretation and its relationship with mineralisation;
- Logging and sampling techniques;
- The quality and reliability of the geological database;
- The spatial coverage and spacing of drillholes;
- Estimation technique.
Preliminary Economic Assessment Update
DRA Mineral Projects (‘DRA’) of Johannesburg, South Africa continues to author the preliminary economic assessment report (“PEA). This report was scheduled for release in December, 2012, but has now been rescheduled for release in Q1 of 2013 due to re-engineering of the plant operating parameters. According to Craig Scherba, P.Geo, President and COO of Energizer, “The calculation of our graphite resource is a significant accomplishment for the Company, and impacts the next milestone for Energizer, which is the release of our PEA study. The original mine design parameters were based on an assumed head-grade of 6% C, and with the quantification by CCIC of significant tonnage at a much higher grade (9% vs 6% C), we believe a head-grade 40-60% higher than originally designed for is obtainable. Consequently, since less material will need to be processed to obtain the same volume of graphite flake, the capital and operating requirements for the mine should be significantly reduced in relation to the original design. DRA has therefore been authorized to begin redesigning the mine based on these new parameters.
Qualified Person
Desmond Subramani, Pr.Sci.Nat. and John Hancox, Pr.Sci.Nat. of Caracle Creek International Consulting Inc. (Caracle Creek) of Johannesburg, South Africa, who arethe Independent Qualified Persons under National Instrument 43-101 responsible for the resource estimate, have reviewed this release. Both Subramani and Hancox are the authors of the NI 43-101 Resource Report, which will be filed within 45 days of this news release.
For more information, please visit our website at www.energizerresources.com, or contact:
Brent Nykoliation, Senior Vice President of Business Development
Toll Free: 800.818.5442 or 416.364.4911
Email: bnykoliation@energizerresources.com
or Craig Scherba, President and COO