Maritime Achieves 96% Gold Recovery in Metallurgical Tests on Orion Deposit
November 07 2013 - 8:00AM
Marketwired Canada
Maritime Resources Corp. (TSX VENTURE:MAE) ('Maritime' or the 'Company') reports
that it has received the results of testwork performed on samples of core from
its Orion gold deposit located near Springdale, Newfoundland. A recovery of 96%
of the contained gold was achieved using a coarse grind and conventional bulk
sulphide flotation process. The material displayed favourable characteristics
and floated very quickly with only a coarse grind necessary to liberate the gold
bearing pyrite.
Eric Norton, President and CEO of Maritime, comments: "We are very pleased with
the results of the Orion pre-concentration testwork. Being able to achieve a 96%
recovery of gold, while reducing the overall tonnes of material to be
transported or requiring further treatment to only 5% of the original mass,
opens up a number of options for the potential development of the Orion deposit.
The Company could produce a concentrate on site that would be suitable for sale
to a smelter, toll treat the concentrate through a local mill, or build a small
processing plant on site to produce Dore metal ourselves. The coarse grind and
fast flotation kinetics would indicate that the sizing of equipment for an
on-site plant would be very small."
As reported in the NI 43-101 compliant Technical Report and Resource Estimate
dated July 3, 2013, the Orion gold deposit contains 1,096,500 tonnes of
mineralization grading 4.47 g/t gold in the Measured and Indicated categories
and 1,288,000 tonnes grading 5.44 g/t gold in the Inferred category, both quoted
using a 3 g/t cut-off grade. This deposit is separate from the Company's higher
grade Hammerdown deposit that was mined from 2000 to 2004 producing 291,400
tonnes of ore at an average grade of 15.8 g/t gold and processed at the nearby
Nugget Pond mill, with an average gold recovery of 97.1%. Maritime initiated the
testwork on the Orion deposit to examine the possibility of upgrading the lower
grade material at the original Hammerdown mine site in order to avoid further
operating costs that would be incurred by trucking as-mined material to Nugget
Pond for processing.
Summary of Test Results:
Maritime submitted two composite samples of drill core of approximately 25 kg
each to Thibault & Associates Inc. of Fredericton, NB from representative
portions of the deposit for bench scale testwork using gravity and flotation
pre-concentration methods. This is the first metallurgical work completed on
material from Orion and was designed to examine the viability of upgrading, but
not optimisation. One sample averaged 2.33 g/t gold (Sample A) and the other
averaged 5.81 g/t gold (Sample B). Sample A was selected to represent the
material that is marginally below the cut-off grade used in the Resource
Estimate, and Sample B was selected to represent the expected overall grade to
be mined at Orion.
The core samples for the flotation testwork were ground to 82.0% to 99.7%
passing 74 microns followed by open circuit batch rougher flotation tests with a
conventional flotation reagent scheme and reagent dosage. A rougher stage gold
recovery of 96.1% with a concentrate grade of 45.2 g/t gold was achieved for
Sample A, and a recovery of 95.9% with a concentrate grade of 66.1 g/t gold was
achieved for Sample B. The flotation kinetics for all tests indicated that the
gold floated quite quickly for both samples, with over 90% recovery within the
first three minutes and the fastest rates being observed with a coarser grind.
No attempt was made to optimize the grind or flotation reagents in this stage of
metallurgical testwork but will be included in future test programs.
The assessment of gravity separation was based on an industry standard mineral
release test, using a Mozley Mineral Separator. The gravity separation tests
were conducted to assess the potential for a gold-rich pyrite concentrate. The
release tests for solids in the range of 20 to 1,000 micron defined the recovery
of gold at 40% to achieve a concentrate grading 32 g/t of gold for Sample A, and
60% to achieve a concentrate grade of 60 g/t of gold for Sample B.
J. Dean Thibault, P.Eng., of Thibault & Associates Inc. is a Qualified Person as
defined by NI 43-101 and has reviewed and approved the technical disclosure of
the metallurgical tests as contained in this release.
ABOUT MARITIME:
Maritime Resources holds 100% of the Green Bay property, located near
Springdale, Newfoundland. The property hosts the past producing Hammerdown gold
mine and newly discovered Orion gold deposit separated by a 1.5 km distance,
south-west of Hammerdown. In addition, the property hosts the Lochinvar base
metals/precious metals deposit located 1 km east of Hammerdown.
An initial Independent NI 43-101 compliant Mineral Resource Estimate for the
Green Bay Gold property was compiled by Tetra Tech of Ontario, and released in
July 2013. The study estimates the property to contain in excess of 400,000
ounces of gold in the Measured and Indicated categories and in excess of 600,000
ounces in the Inferred category, both at a 3 g/t cut-off grade. For further
details please see Maritime's News Release of May 28, 2013 and the full
Technical Report on the Company's website (www.maritimeresourcescorp.com), or
SEDAR.
On Behalf of the Board of Directors,
Eric W. Norton, President & CEO
The TSX Venture Exchange does not accept responsibility for the adequacy or
accuracy of this release. Statements in this press release, other than purely
historical information, including statements relating to the Company's future
plans and objectives or expected results, may include forward-looking
statements. Forward-looking statements are based on numerous assumptions and are
subject to all of the risks and uncertainties inherent in resource exploration
and development. As a result, actual results may vary materially from those
described in the forward-looking statements.
FOR FURTHER INFORMATION PLEASE CONTACT:
Maritime Resources Corp.
Cathy DiVito
Investor Relations
(604) 484-7111
info@maritimeresourcescorp.com
www.maritimeresourcescorp.com
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