Trade Winds Ventures
Completes
Preliminary Metallurgical Study on Block A
Vancouver, BC, May
2, 2011 - Trade Winds Ventures Inc. (TSX-V: TWD, FSE: TVR) ("Trade
Winds") is pleased announce the results of a metallurgical study
by SGS Minerals Services ("SGS") on the Block A Joint Venture
project (50% Trade Winds / 50% Detour Gold), located adjacent to Detour
Gold's Detour Lake gold project in northeastern Ontario. Trade Winds is currently the operator of the JV on Block A.
The study completed
by SGS Minerals Services ("SGS") of Lakefield, Ontario was
designed and supervised by Mr. Andy Holloway, Senior
Associate Process Engineer of Watts, Griffis
and McOuat Limited ("WGM"). Results
indicate excellent gold recoveries, ranging from 87.3% to 98.7%, using
a standard gravity/cyanidation/carbon-in-pulp
circuit (see table below). Three composite samples were prepared
from diamond drill hole TWDDH253 (section 16460E) drilled in early 2010
near the centre of the deposit and submitted to SGS for a preliminary
metallurgical study including grindability
assessment (Bond ball mill work index),
gravity separation and bottle roll cyanidation
tests.
The Bond ball mill
work index results varied from 9.0 to 10.2 kWh/t,
indicating a low degree of hardness. Further testing will
be required on a number of samples to adequately represent the deposit.
Gravity gold recoveries were 72% for Composite 1, 20% for
Composite 2, and 80% for Composite 3. With subsequent cyanidation of gravity tailings, the overall gold
recovery ranged between 87% and 98.7%, depending on grind size and NaCN concentration. Bottle roll cyanidation tests were conducted at 8, 24, 32 and
48 hours intervals. The tests do conclude that higher overall
gold recoveries can be achieved with the inclusion of a gravity circuit .
Further
metallurgical and comminution work will be
undertaken in 2011 along with detailed mineralogical studies to
determine the nature of the gold.
Composite
|
Head Grade
|
Gravity
recovery
|
Grind
Size
|
NaCN
Concentration
|
Cyanidation
recovery (48h)
|
Combined
Gravity & Cyanidation
recovery
|
|
g/t Au
|
%
|
K80 �m
|
g/L
|
%
|
%
|
|
|
|
|
|
|
|
Composite 1 (47 kg)
|
7.42
|
71.5
|
|
|
|
|
Comp. 1 Sample
1
|
|
|
108
|
0.5
|
89.0
|
96.9
|
Comp. 1 Sample
2
|
|
|
75
|
0.5
|
92.9
|
98.0
|
Comp. 1 Sample
3
|
|
|
62
|
0.5
|
93.9
|
98.3
|
Comp. 1 Sample
4
|
|
|
108
|
0.35
|
87.0
|
96.3
|
Comp. 1 Sample
5
|
|
|
108
|
0.65
|
87.6
|
96.5
|
|
|
|
|
|
|
|
Composite 2 (28.9 kg)
|
0.68
|
20.1
|
|
|
|
|
Comp. 2 Sample
1
|
|
|
116
|
0.5
|
85.4
|
88.3
|
Comp. 2 Sample
2
|
|
|
88
|
0.5
|
89.0
|
91.2
|
Comp. 2 Sample
3
|
|
|
72
|
0.5
|
89.1
|
91.3
|
Comp. 2 Sample
4
|
|
|
116
|
0.35
|
84.3
|
87.5
|
Comp. 2 Sample
5
|
|
|
116
|
0.65
|
84.1
|
87.3
|
Composite
|
Head Grade
|
Gravity
recovery
|
Grind
Size
|
NaCN
Concentration
|
Cyanidation
recovery (48h)
|
Combined
Gravity & Cyanidation
recovery
|
|
g/t Au
|
%
|
K80 �m
|
g/L
|
%
|
%
|
|
|
|
|
|
|
|
Composite 3 (40.4 kg)
|
1.63
|
80.4
|
|
|
|
|
Comp. 3 Sample
1
|
|
|
106
|
0.5
|
82.6
|
96.6
|
Comp. 3 Sample
2
|
|
|
66
|
0.5
|
91.4
|
98.3
|
Comp. 3 Sample
3
|
|
|
53
|
0.5
|
93.6
|
98.7
|
Comp. 3 Sample
4
|
|
|
106
|
0.35
|
82.4
|
96.6
|
Comp. 3 Sample
5
|
|
|
106
|
0.65
|
81.4
|
96.4
|
ABOUT TRADE
WINDS VENTURES INC.
Trade Winds Ventures Inc. has been named to the 2011 TSX Venture 50, a
ranking of strong performing companies listed on TSX Venture
Exchange. The 2011 TSX Venture 50 is comprised of ten companies
from each of five sectors; Clean Technology, Mining, Oil & Gas,
Diversified Industries, and Technology & Life Sciences. The
2011 TSX Venture 50 companies were chosen based on the following
criteria, with equal weighting assigned to each: share price appreciation,
trading volume, market capitalization growth and analyst coverage.
TSX Venture 50 is a trade-mark of TSX Inc. and is used under
license.
The material in
this news release has been approved by Mr. Andy Holloway of WGM and by
Stephen Wallace, P.Geo, Senior VP Exploration
of Trade Winds, both Qualified Persons as defined by NI 43-101.
FOR FURTHER
INFORMATION PLEASE CONTACT: Ian D. Lambert, CEO/President (604)
648-6225
Email: info@tradewindsventures.com Visit our
Website at www.tradewindsventures.com
Forward
Looking Information
Certain information included in this news release constitutes
"forward-looking statements". The words "expect",
"will", "intend", "estimate" and similar
expressions identify forward-looking statements. Forward-looking
statements are necessarily based upon a number of estimates and
assumptions that, while considered reasonable by management, are
inherently subject to significant business, economic and competitive
uncertainties and contingencies. The Company cautions the reader that
such forward-looking statements involve known and unknown risks,
uncertainties and other factors that may cause the actual results,
performance or achievements of the Company to be materially different
from the Company's estimated future
results, performance or achievements expressed or implied by those
forward-looking statements and the forward-looking statements are not
guarantees of future performance. These risks, uncertainties and other
factors include, but are not limited to, risks associated with the
mining industry such as government regulation, environmental and
reclamation risks, title disputes or claims, success of mining
activities, future commodity prices, costs of production, possible
variation in mineral reserves, mineral resources, grade or recovery
rates, failure of plant, equipment or processes to operate as
anticipated, accidents, labour disputes, the
timing of estimated future production, capital expenditures, financial
market fluctuations, requirements for additional capital, conclusions
of economic evaluations, limitations on insurance coverage, risks
associated with using third-party contractors and inflation. The
Company disclaims any intention or obligation to update or revise any
forward-looking statements whether as a result of new information,
future events or otherwise, except as required by applicable law.
Information
Concerning Estimates of Mineral Resources
This news release uses the terms 'indicated'
and 'inferred'
resources. The Company advises investors that although these terms are
recognized and required by Canadian regulations (under National
Instrument 43-101 Standards of Disclosure for Mineral Projects), the
U.S. Securities and Exchange Commission does not recognize them.
Investors are cautioned not to assume that any part or all of the
mineral deposits in these categories will ever be converted into
reserves. In addition, 'inferred
resources' have a great amount of
uncertainty as to their existence, and economic and legal feasibility.
It cannot be assumed that all or any part of an inferred mineral
resource will ever be upgraded to a higher category. Under Canadian
rules, estimates of inferred mineral resources may not form the basis
of feasibility or pre-feasibility studies, or economic studies except
for Preliminary Assessment as defined under 43-101. Investors are
cautioned not to assume that part or all of an inferred resource
exists, or is economically or legally mineable.
Neither TSX Venture
Exchange nor its Regulation Services Provider (as that term is defined
in the policies of the TSX Venture Exchange) accepts responsibility for
the adequacy or accuracy of this release.
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