VenCan holds a 100% interest in 43
claims in the Wawa area, Ontario and a 3% net smelter royalty in
3 adjoining claims.
The history of the property is outlined below: 
Location and Access
Vencan Gold Corporation's Edwards Property
consists of 4 patented and 39 staked claims and is located some
30 miles (50 kilometres) northeast of Wawa, Ontario, Canada. The Edwards Property adjoins
the three claims of the Edwards Gold Mine and is easily accessible
by a well maintained all season road. A Great Lakes Power Line
traverses the property, supplying power to the Edwards, Magino, and
Patricia mine sites.
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Regional and Property Geology
Vencan's 43 contiguous claim Edwards Property
lies within the Goudreau-Localsh area of the Wawa Greenstone Belt,
which is comprised of a major succession of supracrustal rocks
of Archean age, represented by several cycles of volcanic activity
and a series of sedimentary rocks. The
claims are located within the Goudreau Lake Deformation Zone (“GLDZ”)
as defined in the Ontario Geological Survey. The majority of
the known deposits in the area are located along this 18 mile (30
kilometre) by 2.5 mile (4 kilometre) east-northeast trending arcuate
zone. Structural controls appear to be the most important factor
in the localization of gold-bearing quartz veins in this area, and
the GLDZ hosts numerous, systematically oriented shear zones.
The Edwards Property is underlain predominately
by mafic lavas, with various felsic dikes intruding the host rock. The Edwards/Cline
shear zone is the dominant controlling feature in the area, extending
across the entire property at about 085 degrees and dipping approximately
55 to 70 degrees north. Auriferous quartz veining has been
found typically as dilatant zones comprised of tension shears and
fractures, branching obliquely from the Edwards/Cline shear zone,
striking between 110 and 140 degrees, and generally dipping steeply
north.
Although gold bearing zones have been discovered that display other
trends, Vencan's exploration has focused on those striking between
110 and 140 degrees, as these vein systems have exhibited excellent
continuity and have yielded proven economic returns when mined.
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Early Mining and Exploration
During the 1920's, gold was originally discovered
in veins outcropping on the north side of the Edwards/Cline shear
zone. In 1934
an incline shaft was sunk on the old Edwards Mine site to a depth
of 300 feet (90 metres), with approximately 1,000 feet (300 metres)
of underground development work completed on three levels. A
75 ton per day amalgamation mill was used to process some 1,573 tons
of vein material at a grade of 0.31 ounces of gold per ton (10.6
grams per tonne). Immediately to the east, the Cline Mine produced
63,328 ounces from 331,842 tons mined from 1938 to 1942, for an average
grade of 0.191 ounces of gold per ton (6.53 grams per tonne).
The Edwards Property lay dormant after World
War II until the 1960's when Shaynee Consolidated Mines Ltd. (Shaynee)
completed 6,009 feet (1,800 metres) of surface diamond drilling,
intercepting five discrete auriferous zones: four zones were discovered in the immediate
area of the old Edwards Mine on the north side of the shear zone,
but another was discovered over 700 feet (215 metres) southwest of
the old workings. This latter zone was the first to be discovered
south of the Edwards/Cline shear and was appropriately named the
Shaynee Zone. However, the initial drilling direction used
by Shaynee Consolidated Mines Ltd. was not perpendicular to the strike
of the newly discovered Shaynee zone, and as a result, their geologists
had a difficult time establishing its strike and location. From
the late 1960's to the early 1980's several other companies performed
various geophysical, geological and diamond drilling programs in
the area, all of which appear to have been undertaken in a search
for massive sulphides.
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Vencan's Exploration – 1986 to 1988
Vencan assembled their claim block during
1986 and 1987 and subsequently performed various geophysical and
geological surveys. Initially,
much of the work involved mapping the property, followed by basal
till sampling and geophysical surveys. The main area of interest
near the old Edwards Mine shaft was stripped, channel sampled, and
mapped in detail. The first diamond drill program undertaken
by Vencan in early 1988 was also successful in intersecting high
grade gold sections on the south side of the shear zone, resulting
in great excitement for the Company. However, the challenge
still remained how to accurately locate and define the indicated
high grade gold zones.
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A New Exploration Model – 1989 to 1993
Independent geologists, Peter Vamos (P.Eng.) and Bruce Edgar * (HBSc)
were engaged by Vencan to solve the mystery of where and how gold
might be deposited on the south side of the Edwards/Cline shear zone. After
re-logging the core and studying the geology of the area, Vamos and
Edgar devised a new strategy that would change the drilling direction
to a southwesterly direction. Drilling was resumed in late
1988 and every hole was successful in striking gold bearing zones
on the south side of the shear, with excellent high grade values
* Mr. Bruce Edgar joined
Vencan's Board of Directors in 2000
being attained on a daily basis. In late 1989 and early 1990
more drilling succeeded in defining and proving the continuity of
several high grade gold bearing zones to a depth of 600 feet (180
metres). Subsequent drill programs from 1991 through 1993 succeeded
in establishing reserve and resource estimates, and defining the
location of three major high grade zones (the Shaynee, the Porphyry
and the Carbonate) down to a depth of 1000 feet (330 meters).
A total of 175 drill holes and over 100,000
feet (30,000 metres) of diamond drilling were completed by Vencan
from 1988 to 1993. All
the Edwards Property drill programs undertaken by Vencan were classified
as very successful. Through 1993, the Company had discovered
and defined three significant high grade gold zones on the south
side of the shear by drilling along just a 700 foot section.
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Mine Development – 1990's
Vencan's discovery of a new high grade and
apparently economically feasible gold ore body at its Edwards Property
generated great interest within the Canadian mining industry, but
ironically, not from the investment sector. In the early 1990's the financial investment
community had become enamoured with the potential of discovering
large but low grade epithermal type gold deposits in tropical countries. Without
the required capital to develop its Edwards discovery into a mine,
Vencan joined the popular movement south in 1993, and undertook well
financed exploration programs in Venezuela and Honduras.
In 1996, with the ambivalent sentiment for
developing a Canadian underground gold mine still prevailing, Vencan
struck a development and mining deal for its three Edwards Mine
claims with an Ontario gold producer, River Gold Mines Ltd. The deal between the two
companies included a $500,000 cash payment to Vencan and called for
a 50% split of mine profits after recovery of development costs. In
1997 River Gold developed an underground mine ramp and installed
the necessary underground and surface infrastructure. Commercial
mine production started in 1998. At an arbitration hearing
in 1999 to resolve a dispute over profit calculation, River Gold
agreed to purchase the three Edwards Mine claims from Vencan for
$1,500,000 and granted an irrevocable 3% net smelter production royalty
on future Edwards Mine production. Through 2001, Vencan generated
over $3,000,000 cash income from its share of profits, net smelter
royalties, and the sale proceeds for the three mine claims. Vencan
today still retains a perpetual 3% net smelter royalty interest in
the three Edwards Mine claims, and holds a 100% interest in its adjacent
43 claim Edwards Property.
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Edwards Mine Production
River Gold reported that for the four years
1998 through 2001, the Edwards Mine produced in excess of 130,000
ounces of gold with a gross value of over CDN$50,000,000. Average recovered grade
from 430,000 tons mined over the four years exceeded 0.30 ounces
per ton (10.25 grams per tonne). The three zones that were
mined, the Shaynee, the Porphyry and the Carbonate, were all developed
down to the 1000 foot (300 metre) level. All Edwards Mine ore
was transported by truck 100 miles to the Eagle River mill where
it was batch processed. River Gold ceased mining in late 2001
when the existing underground mine ramp no longer provided an economically
feasible way to transport ore from the 1000 foot level to surface.
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Mineralization and Structure
The first three auriferous quartz veins discovered
and mined on the south side of the Edwards/Cline shear zone ranged
from several inches in width to 10 feet or more, but averaged 1
to 3 feet. Sometimes
occurring in multiple sets with significant over-all width, the veins
generally contained 1 to 3% pyrite with very minor amounts of pyrrhotite,
chalcopyrite, sphalerite, and galena. Visible gold was common
in both exploration drill core and mined ore, and could be seen as
discrete specks and grains, often as clouds or clusters, sometimes
amounting to 1% or more of the quartz vein inclusions. Margins
of the veining contained up to 15% sulphides, but assay results showed
that very little gold is present outside of the quartz veining.
The Shaynee, Carbonate and Porphyry zones
were the first gold zones to be mined on the south side of the
northerly dipping (55° to
70°) shear zone. This meant that the three zones were located
on the “hanging wall” side of the shear, and would not be ultimately
terminated at depth by the shear zone itself. In fact, at the
mine level of 1,000 feet (300 meters), where River Gold ceased mining,
all three zones still remain open for further vertical development.
In contrast, because of the shear zone's steep dip angle to the
north, all the veins discovered and developed on the north side of
the shear by the Edwards and Cline mines were terminated when they
intersected the shear zone at relatively shallow depths.
The significance of Vencan's discovery of
gold bearing zones on the south side of the shear zone is therefore
clear: greater
vertical potential for ore tonnage and little chance of termination
by the shear zone at depth. This feature was made very obvious
in the actual mine production in the immediate area: just 334,000
tons of ore were produced from shallow veins on the north side of
the shear, but over a span of one mile (1.6 kilometers); while
430,000 tons of ore was produced from the deep veins on the south
side of the shear, along a span of just 700 feet (215 meters).
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Metallurgical Investigations
Composite drill core samples were initially
tested in 1991 by Lakefield Research under the supervision of Strathcona
Minerals Services Ltd. This
testing indicated that a gold recovery rate of 93% to 97% with conventional
milling and cyanide extraction could be expected, and that 70% of
the gold could be extracted by gravity concentration alone. These
test results were ultimately proven to be accurate, with an average
96% gold recovery rate realized in the actual milling of Edwards
Mine ore by River Gold Mines Ltd.
Analyses of the material and process liquor
after leaching did not indicate any potential environmental concerns. The ore is highly
compatible with the process technology employed by mills in the immediate
area (Hemlo, Eagle River, Magino and Kremzar). Both the Eagle
River and Kremzar mills are located within a 100 mile (160 kilometres)
radius, and both are state of the art facilities. Custom milling
services at either of these mills allow feasible ore trucking economics,
and would preclude Vencan from having to invest in its own milling
facilities.
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Mining Methods
The Shaynee, Porphyry, and Carbonate zones
exhibited near classical examples of steeply dipping, near parallel
and vertical (80 degrees), gold in quartz veins. These characteristics typically occur
in competent volcanic ground conditions. The Edwards Mine ore
body was therefore amenable to relatively low cost conventional shrinkage
stope and long-hole mining methods, thereby facilitating narrow mining
widths of five to ten feet.
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