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Rusoro Mining Ltd. (TSX VENTURE:RML - News) has received an updated resource estimate for the Choco 10 Deposits which was completed by the independent
consulting firm Micon International Limited ("Micon"). The operating Choco
10 Mine, which produced 126,000 ounces in 2009, is located in the El Callao
Mining District in southeastern Venezuela. The Project is currently the
subject of a Feasibility Study evaluating an expansion of the Choco operations to 20,000 tonnes
per day.
The Micon independent NI
43-101 resource estimate has been prepared by D. Makepeace, P.Eng. senior geologist for Micon and a qualified person as defined by NI 43-101. A
NI 43-101 Technical Report detailing the Updated Resource Estimate will be
filed on SEDAR within the next 45 days. The updated resource estimate is
outlined in the following table;
Current Choco 10 Mineral Resource Estimate at December 2009 --------------------------------------------------------------------------- Grade Tonnes Au g/t Grams Au Ounces Au --------------------------------------------------------------------------- Measured 34,700,000 2.17 75,400,000 2,430,000 Indicated 105,200,000 1.74 182,900,000 5,880,000 --------------------------------------------------------------------------- M & I 139,900,000 1.85 258,300,000 8,300,000 Inferred 59,200,000 1.48 87,750,000 2,800,000 --------------------------------------------------------------------------- 1 It cannot be assumed that all or any part of an Inferred Mineral Resource will be upgraded to an Indicated or Measured Mineral Resource as a result of continued exploration. 2 Mineral resources which are not mineral reserves do not have demonstrated economic viability. 3 Numbers may not add due to rounding.
The Updated Choco 10
Resource Estimate was completed using 3D computer models with grade estimated
by inverse distance cubed on two metre composites.
The estimate uses a cut off grade of 0.5 g/t Au, a density (specific gravity)
of 1.60 g/cm3 for saprolite, 2.35 g/cm3 for saprock and 2.70 g/cm3, for hard rock. High grade gold
assays have been capped to 34.286 g/t Au.
In relation to the previous resource estimate which
was detailed in a Micon Technical report by Leader,
R.J., J. Perry, I. Ward, C. Jacobs, and C. Lattanzi,
titled "Technical Report on the PMG (Gold Fields) Choco
10 Concession and Mine, Estado Bolivar, Venezuela" dated November 21,
2007, the updated Choco Measured and Indicated
resource (139.9Mt @ 1.85g/t Au) saw contained ounces increased by 78% (+3.6M
oz) resulting from a 138% increase in tonnes and a
25% decrease in grade while the updated Inferred resource (59.2Mt @ 1.48g/t
Au) decreased by 6% (-194,000 oz) resulting from a 37.9% increase in tonnes and a 32.2% decrease in grade.
The updated resource estimates include a significant
amount of new drill data (45,453 metres from 406
new drill holes) for a total of 2,464 drill holes totalling
270,096.3 metres drilled, bringing the drill
spacing for most areas of the deposits to 25 metres
by 25 metres.
The Choco 10
mineralization consists of a series of interrelated deposits distributed over
an area three kilometres long by one kilometre wide. Controls on gold mineralization include
sheared, faulted or fractured structures, favourable
lithologies, and fold hinges. Gold most often
occurs in quartz-carbonate veining with associated pyrite. Current mining and
milling operations (averaging 5000 to 6000 tonnes
per day) are active on three of the four deposits; Coacia,
Rosika, and Pisolita.
Updated Choco 10 Mineral Resource Estimate by Deposit --------------------------------------------------------------------------- Measured + Indicated --------------------------------------------------- Gold Tonnes Grade ------------------------- (t) (g/t) (g) (oz) --------------------------------------------------------------------------- Rosika Total 18,325,000 2.15 39,397,000 1,267,000 --------------------------------------------------------------------------- Coacia Total 1,325,000 1.55 2,051,000 66,000 --------------------------------------------------------------------------- Pisolita Total 5,350,000 1.58 8,428,000 271,000 --------------------------------------------------------------------------- VBK Total 114,910,000 1.81 208,449,000 6,701,000 --------------------------------------------------------------------------- Grand Total 139,910,000 1.85 258,324,000 8,305,000 --------------------------------------------------------------------------- --------------------------------------------------------------------------- Inferred --------------------------------------------------- Gold Tonnes Grade ------------------------- (t) (g/t) (g) (oz) --------------------------------------------------------------------------- Rosika Total 12,165,000 1.55 18,880,000 607,000 --------------------------------------------------------------------------- Coacia Total 8,329,000 1.68 13,960,000 449,000 --------------------------------------------------------------------------- Pisolita Total 18,694,000 1.15 21,458,000 690,000 --------------------------------------------------------------------------- VBK Total 19,974,000 1.67 33,452,000 1,075,000 --------------------------------------------------------------------------- Grand Total 59,162,000 1.48 87,751,000 2,821,000 ---------------------------------------------------------------------------
A Feasibility Study is currently underway to follow
up on the positive Preliminary Assessment (PA), completed by Micon International Limited, which is evaluating the
viability of a major expansion at the Choco Mine
and Choco Mill and which will incorporate the
nearby Increible 6 gold deposit. The PA is detailed
in a report dated June 2, 2009 and titled "Technical Report on the
Preliminary Assessment of the Expansion of Production at Choco
10, Bolivar State, Venezuela". The PA outlined favourable
economics for a significant expansion to 20,000 tonnes
per day which would result in production of an average of 558,000 oz Au/yr at
a cash cost of US$331/oz Au over the 12 year life of mine. The PA results
were reported in the news release dated May 19, 2009, which is available on
SEDAR at www.sedar.com.
"Choco 10 remains the
Company's flagship mine and the updated Resource Estimate further confirms
the potential of these deposits. This is a significant step forward
especially the 78% increase in Measured and Indicated ounces and continuing
to increase the size of the overall deposit. These zones form the basis of
the Feasibility Study currently underway, modelling
a fourfold expansion at the Choco Operations,"
reports Greg Smith, Vice-President of Exploration.
Diamond and RC drilling was conducted by independent
contractors. All drilling and drill sampling has been completed using
industry standard practices. Drill core is described in detail and
photographed and one half of the core is kept for inspection and reference.
Sample analyses have been conducted at a series of independent analytical
facilities located in Bolivar State Venezuela including ACME Lab in Guasipati, SGS labs of El Dorado, Triad Labs located in
El Callao, and Actlabs in Tumeremo.
All sample analyses was completed using industry standard practices and
standard samples, blanks and duplicate check samples were randomly inserted
into the sample stream to ensure quality control. A review of the QA/QC
results shows no significant bias and all results are considered highly
reliable. Sample rejects for Rusoro drill samples
are stored in Rusoro's secure facilities in El
Callao, Venezuela, and will continue to be available for any further testing
which may be required.
Qualified Persons: The NI 43-101 compliant resource
estimate has been prepared by the independent consulting firm Micon International Limited by qualified person D.
Makepeace P.Eng. Mr. Gregory Smith, P.Geo.,
the Vice-President Exploration of the Company, is the Qualified Person as
defined by NI 43-101, and is responsible for the accuracy of the technical
data and information contained in this news release.
ON BEHALF OF THE BOARD
Andre Agapov, Chief
Executive Officer and President
Forward-looking statements: This document contains
statements about expected or anticipated future events and financial results
that are forward-looking in nature and as a result, are subject to certain
risks and uncertainties, such as general economic, market and business
conditions, the regulatory process and actions, technical issues, new legislation,
competitive and general economic factors and conditions, the uncertainties
resulting from potential delays or changes in plans, the occurrence of
unexpected events, and the Company's capability to execute and implement its
future plans. Actual results may differ materially from those projected by
management. For such statements, we claim the safe harbour
for forward-looking statements within the meaning of the Private Securities
Legislation Reform Act of 1995.
"Neither TSX Venture Exchange nor its Regulation
Services Provider (as that term is defined in policies of the TSX Venture
Exchange) accepts responsibility for the adequacy or accuracy of this
release."
Contact:
604-632-4044 or Toll Free: 1-800-668-0091 Rusoro Mining Ltd. 604-632-4045 (FAX) info@rusoro.com www.rusoro.com |