Gold / Dolly Varden Claims
Brief History
Located in Elko County, in the North Eastern region
of Nevada, the Dolly Varden gold and copper district was first
discovered in 1869 by small claims prospectors.
The district was organized by 1872. Situated at
the Northern Extremity of Schell Creek Range (Dolly Varden Mountains)
other names associated with the region were Mizpah, Granite Mountain,
and Granite.
There are 3 areas that comprise the present Dolly
Varden District:
1) The original Dolly Varden District was located
on the east side of the mountains.
2) The Granite Mountain District was 3 miles to
the west
3) The Mizpah District was located to the north.
Regional Commodities include: Copper, Gold, Silver,
Zinc, Molybdenum, Lead, Thorium and Rare Earths, Uranium.
Previous Exploration Landmarks
After developing its exciting South Dolly Varden
gold/copper claims in Elko County, Nevada over the past three
years, Consolidated Gold Win Ventures Inc. (CGW) is now ready
to commence drilling to prove up the deposit.
In 2005, CGW has completed geological mapping,
done systematic rock sampling, and conducted a 3D Induced Polarization
survey. The recent mapping done by the company in preparation
for the upcoming drilling has identified a Quartz Feldspar Porphyry
(QFP) intrusive associated with the chargeability anomaly and
the rock geochemistry anomaly. QFP’s are associated with
the Skarn and porphyry copper deposits of the Nevada basin area.
The geology is excellent, with intrusives intruding limestones
which create mineralized skarns (as at Battle Mountains Fortitude
Deposit) within the same rocks that to the west host the high
grade Victoria Copper Mine. The 3D Induced Polarization (IP) surveying
outlined a chargeability zone coincident with the areas of rock
mineralization that is at least 3000 feet long and up to 1000
feet wide. Where the IP zone comes to surface, several mineralized
outcrops of copper rich mineralization have been found.
Located in ‘Elephant’ Territory: The
South Dolly Varden property is 70 miles north of Ely - one of
the Nevada’s most productive copper/gold mining areas. Nevada
hosts some of the most prolific gold mines in the USA and is,
in fact, the World’s third largest gold producer. The entire
region can justifiably be called ‘Elephant’ territory.
Just 120 miles from CGW’s property is the US’s biggest
deposit copper/gold mine, at Bingham Canyon in neighboring Utah.
Even closer, 70 miles away, is another ‘Elephant’
— the Magma Copper Mine.
Rich History: The 16-claim South Dolly Varden property
is adjacent to the Victoria mine—which operated in the 1970s
and 80s and produced over 24 million pounds of copper— north
of the Dolly Varden property, which produced both gold and copper.
Gold/Copper Porphyry System Analogous to Battle
Mountain/Carlin Trend: The property is located right at the range
front, where the mountains of the range meets the valley basin
alluvium. This is the common location of many of the Carlin and
Battle Mountain trend type deposits as evidenced by any drive
along I – 80 (the Dwight D Eisenhower Memorial Highway)
in the area around Battle Mountain (and on to Reno) or along the
highways along these trends. The area is recognized as a classic
eastern Great Basin district with base and precious metals associated
with upper Paleozoic sediments intruded by Cretaceous auriferous
magmas. Work previously done by Noranda reported significant values
of copper (up to 1.3 per cent) and gold (up to 4.27 grams per
tonne), in assay grab samples.
The mineralogy is straightforward with copper minerals
(chrysocolla, malachite, minor chalcite, and residual chalcopyrite
and bornite) in a gangue of typical skarn mineralization. With
the gold presence more noticeable at this location, a gold copper
porphyry system has been suggested that is analogous to the Battle
Mountain, Fortitude-type of gold deposit in east-central Nevada.
This Carlin-type disseminated gold structurally
related, sedimentary hosted deposit is associated with the main
Carlin Trend and the Battle Mountain Eureka Trend located to the
west of the Dolly Varden property. The presence of the polymetallic
replacement lead silver gold type deposit at Eureka to the south-west,
presents another type of deposit that should be investigated.
Associated skarn and epithermal stockwork and veins with the Battle
Mountain-Eureka Trend should not be overlooked.
About 100 Carlin-type sedimentary rock-hosted gold
deposits in the two main trends (Carlin and Battle Mountain Eureka)
as well as two smaller clusters in the north (Getchell and Jerritt
Canyon which has been hypothesized as being ‘on trend’
with the Dolly Varden property) have placed Nevada and the USA
in the forefront of leading gold mining regions around the world.
A review of 59 grab rock samples taken outlined
several anomalous molybdenum analyses ranging from 100ppm to as
high as 1,305 ppm Mo found in one sample associated with the high
grade silver sample of 1145 ppm silver (33.57 ounces per tonne)
and anomalous values in uranium (three samples had 190, 160 and
130 ppm U) all associated with the high-grade copper and zinc
grab samples (up to 9.34 per cent copper and up to 20.2 per cent
zinc). The association of minerals, particularly the high lead
values which ‘collect’ precious metals, require further
investigation but suggests that the source of the mineralization
is quite metaliferrous.
Geochem surveying have identified zones that cross
the property; soil samples of this trend correspond to areas where
rock samples have returned high values of (+ 1 to 5%) copper,
(+ 1 to 3 %) lead, (up to 20%) zinc and silver (+1100 ppm ) and
values of gold (2 to 4 g/t).
