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Kimber Announces High Grade Gold-Silver Mineral Resource Estimate and Improved Metallurgical Recoveries for Carmen Deposit
New Upgraded Geologic Model Supports Improved Recoveries - 96% for Gold & 72% for Silver for High Grade Mineral Resource
Base Case High Grade Mineral Resource Estimate for Carmen Deposit
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(At a 3g/t Recoverable Gold Equivalent Cut-off)
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In situ In Situ Contained Contained
Tonnes Gold Grade Silver In Situ In Situ
Classification (000s) (g/t) Grade (g/t) Gold (oz) Silver (oz)
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Indicated 3,660 4.19 165.2 492,900 19,440,700
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Additional
Inferred 1,921 4.40 94.6 271,800 5,845,000
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The high grade resource lies within an overall halo of lower grade mineralization. The base case total resource estimate, inclusive of the high grade estimate, is tabulated below.
Base Case Total Mineral Resource Estimate
(inclusive of High Grade) for Carmen Deposit
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(At a 0.3g/t Recoverable Gold Equivalent Cut-off)
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In situ In Situ Contained Contained
Tonnes Gold Grade Silver In Situ In Situ
Classification (000s) (g/t) Grade (g/t) Gold (oz) Silver (oz)
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Indicated 19,500 1.12 59.0 699,700 36,978,700
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Additional
Inferred 10,800 1.09 32.0 381,600 11,155,400
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"We are extremely pleased with this new mineral resource estimate for the Carmen Deposit, which is underpinned by a very detailed geological model and technical work program, and which defines a significant tonnage of high grade gold-silver mineral resources with excellent metallurgical recoveries," said
Metallurgical Recovery Highlights for High Grade Mineral Resource
Based on 329 individual metallurgical recovery characterization tests conducted across the entire
As a result of this extensive test work, at a cut off of 3 g/t recoverable gold equivalent, average modelled gold recoveries were 96% for indicated mineral resources and inferred mineral resources while the average modelled silver recovery was 72% for indicated mineral resources and 75% for inferred mineral resources.
Mineral Resource Estimation Process
The mineral resource estimate for the Carmen Deposit at Monterde was prepared by Mr.
This new mineral resource estimate for
Mineral resources that are not mineral reserves do not have demonstrated economic viability. Mineral resource estimates do not account for mineability, selectivity, mining loss and dilution. These mineral resource estimates include inferred mineral resources that are normally considered too speculative geologically to have economic considerations applied to them that would enable them to be categorized as mineral reserves. There is also no certainty that these inferred mineral resources will be converted to the measured and indicated categories through further drilling, or into mineral reserves, once economic considerations are applied.
Details of High Grade Mineral Resource update for Carmen Deposit
Since the last block model mineral resource estimate for the
The high grade mineral resource estimates at various cutoff grades are shown below, with the base case bolded:
High Grade Mineral Resource Estimate for Carmen Deposit - Indicated
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(At Various Cut-off Grades)
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Grade Contained Metal
Cutoff -------------------------------------------------
Grade Recoverable
(Recoverable Tonnes Gold Silver AuEq* Gold Silver
AuEq* g/t) (000s) (g/t) (g/t) (g/t) (ozs) (ozs)
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1.50 4,780 3.60 151.9 5.10 553,100 23,348,700
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2.00 4,530 3.73 154.3 5.28 543,100 22,471,100
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2.50 4,160 3.92 158.5 5.55 524,400 21,202,500
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3.00 3,660 4.19 165.2 5.93 492,900 19,440,700
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3.50 3,080 4.55 174.0 6.43 450,600 17,231,300
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4.00 2,540 4.97 184.2 7.01 405,800 15,044,600
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High Grade Mineral Resource Estimate for Carmen Deposit - Inferred
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(At Various Cut-off Grades)
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Grade Contained Metal
Cutoff -------------------------------------------------
Grade Recoverable
(Recoverable Tonnes Gold Silver AuEq* Gold Silver
AuEq* g/t) (000s) (g/t) (g/t) (g/t) (ozs) (ozs)
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1.50 2,850 3.54 84.4 4.37 324,500 7,738,300
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2.00 2,620 3.73 87.8 4.60 313,900 7,396,400
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2.50 2,297 4.02 91.0 4.93 297,100 6,720,600
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3.00 1,921 4.40 94.6 5.35 271,800 5,845,000
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3.50 1,561 4.81 99.9 5.84 241,500 5,014,000
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4.00 1,224 5.29 107.1 6.42 208,100 4,216,300
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* Note 1: Gold Equivalent or "AuEq" g/t is based on assumed metal
prices of US$750/oz gold and US$12/oz silver and estimated gold and
silver recoveries for each block, using the following formula:
AuEq g/t = (Gold Grade * Gold Recovery %) + ((Silver
Grade * Silver Recovery %) * 12 / 750)
Note 2: Columns with headings "Gold (g/t)", "Silver (g/t)", "Gold
(ozs)" and "Silver (ozs)" all relate to contained metal and are
before metallurgical recoveries are applied.
Total Mineral Resource, Inclusive of High Grade, for Carmen Deposit
A second set of mineral resource tables are provided below to show the grades and tonnages for the entire
Modelled gold recovery for total indicated and inferred mineral resources was 94%. Modelled silver recovery averaged 55% for total indicated mineral resources and 61% for total inferred mineral resources. The total mineral resource estimate at various cutoff grades is tabulated below, with the base case bolded.
Total Mineral Resource Estimate (inclusive of High Grade)
for Carmen Deposit - Indicated
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(At Various Cut-off Grades)
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Grade Contained Metal
Cutoff -------------------------------------------------
Grade Recoverable
(Recoverable Tonnes Gold Silver AuEq* Gold Silver
AuEq* g/t) (000s) (g/t) (g/t) (g/t) (ozs) (ozs)
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0.10 46,650 0.55 33.4 0.76 823,400 50,066,700
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0.20 28,280 0.83 46.2 1.16 756,500 42,047,700
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0.30 19,500 1.12 59.0 1.57 699,700 36,978,700
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0.40 15,750 1.32 67.6 1.86 667,400 34,246,100
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0.50 13,240 1.51 75.8 2.13 640,700 32,259,100
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0.60 11,480 1.68 82.9 2.37 618,200 30,594,400
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0.70 10,260 1.82 88.7 2.57 600,400 29,251,000
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0.80 9,430 1.93 93.0 2.74 585,800 28,202,100
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0.90 8,750 2.03 96.8 2.88 572,200 27,238,900
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1.00 8,190 2.13 100.0 3.01 560,100 26,328,700
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* Note 1: Gold Equivalent or "AuEq" g/t is based on prices of US$750/oz
gold and US$12/oz silver and estimated gold and silver recoveries for
each block and estimated using the following formula:
AuEq g/t = (Gold Grade * Gold Recovery %) + ((Silver
Grade * Silver Recovery %) * 12 / 750)
Note 2: Columns with headings "Gold (g/t)", "Silver (g/t)", "Gold
(ozs)" and "Silver (ozs)" all relate to contained metal and are
before metallurgical recoveries are applied.
Total Mineral Resource Estimate (inclusive of High Grade)
for Carmen Deposit - Inferred
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(At Various Cut-off Grades)
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Grade Contained Metal
Cutoff -------------------------------------------------
Grade Recoverable
(Recoverable Tonnes Gold Silver AuEq* Gold Silver
AuEq* g/t) (000s) (g/t) (g/t) (g/t) (ozs) (ozs)
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0.10 24,630 0.56 20.3 0.68 446,600 16,052,300
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0.20 14,380 0.88 27.0 1.07 406,900 12,485,400
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0.30 10,860 1.09 32.0 1.34 381,600 11,155,400
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0.40 9,460 1.21 34.5 1.49 368,300 10,502,300
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0.50 8,420 1.32 36.8 1.62 356,500 9,958,700
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0.60 7,450 1.43 39.1 1.75 342,800 9,369,600
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0.70 6,640 1.54 41.3 1.89 329,400 8,823,700
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0.80 6,000 1.64 43.2 2.01 316,900 8,339,600
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0.90 5,450 1.74 45.1 2.13 304,700 7,905,100
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1.00 4,980 1.83 46.7 2.24 293,200 7,476,800
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* Note 1: Gold Equivalent or "AuEq" g/t is based on prices of US$750/oz
gold and US$12/oz silver and estimated gold and silver recoveries for
each block and estimated using the following formula:
AuEq g/t = (Gold Grade * Gold Recovery %) + ((Silver
Grade * Silver Recovery %) * 12 / 750)
Note 2: Columns with headings "Gold (g/t)", "Silver (g/t)", "Gold
(ozs)" and "Silver (ozs)" all relate to contained metal and are
before metallurgical recoveries are applied.
Metallurgical Recoveries for Gold & Silver in Carmen Deposit
Micon International, under the supervision of
Gold recovery in the
A silver recovery model has been created with reference to:
- the grade of gold and silver in each sample;
- the physical location of the sample; and
- the mineralized structure where the sample was located.
Analysis of the silver recovery data led to the identification of 10 clusters identified as key based on the estimated number of recoverable ounces affected by a cluster.
In order to validate the gold and silver recovery models, and to facilitate refinements, 72 samples were selected in the summer of 2009 and tested for gold and silver recovery, in the same manner as the previously tested 257 recovery characterization samples. These samples were selected mainly from the 10 key clusters with varying depth, grade, location along strike and structural characteristics. The recovery model projected results in line with those obtained from the most recent laboratory results, supporting the validity of the model.
The gold and silver recovery models can be applied to any block model mineral resource estimate created in respect of the
Other Mineral Resource Estimates
The mineral resource estimates for Veta Minitas and Carotare, the other two gold-silver deposits that, with
About Kimber
Kimber owns mineral concessions covering in excess of 39,000 hectares in the prospective
Forward looking statements
Statements in this release may be viewed as forward-looking statements. Such statements involve risks and uncertainties that could cause actual results to differ materially from those projected. There are no assurances the Company can fulfil such forward-looking statements and the Company undertakes no obligation to update such statements. Such forward-looking statements are only predictions; actual events or results may differ materially as a result of risks facing the Company, some of which are beyond the Company's control.
The mineral resource estimate for the Carmen Deposit at Monterde was prepared by Mr.
The technical information in this news release has been prepared in accordance with Canadian regulatory requirements set out in National Instrument 43-101 and reviewed by Mr.
Cautionary Note to U.S. Investors - The United States Securities and Exchange Commission permits U.S. mining companies, in their filings with the SEC, to disclose only those mineral deposits that a company can economically and legally extract or produce. Kimber Resources uses certain terms on its website (and certain press releases), such as "measured," "indicated," and "inferred," "resources," which the SEC guidelines strictly prohibit U.S. registered companies from including in their filings with the SEC. U.S. Investors are urged to consider closely the disclosure in our Form 20-F which may be secured from us, or from the SEC's website at http://www.sec.gov/edgar.shtml.
SOURCE Kimber Resources Inc.
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