NEWS
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NEWS RELEASES
March 25, 2008
DRILLING INTERSECTS SIGNIFICANT MINERALIZATION IN NORTHWEST
TERRITORIES
Cooper Minerals Inc. (TSX-Venture: CQ and Frankfurt: JM6) (“Cooper
Minerals” or the “Company” is pleased to report that it continues to
discover significant base and precious metal values in both drill
holes and surface rock chip samples at its Terra IOCG
(iron-oxide-copper-gold) project in the Northwest Territories. This
project is located in the Great Bear Lake magmatic zone, 430
kilometres north of Yellowknife. Cooper Minerals, holding 480,000
acres, is the largest public company landholder in the area.
High-grade silver, copper, uranium, zinc, lead, bismuth, cobalt, and
nickel with significant gold mineralization have been previously
reported by the Company for the Terra Property. This press release
incorporates new assays recently received for drill core and surface
samples that were collected late in the 2007 field season. The Terra
mine exploited high-grade bonanza type silver veins and the purpose
of the drilling and the surface sampling was to test whether there
is potential for much larger systems of polymetallic mineralization,
in particular, of Iron-Oxide-Copper-Gold (IOCG) type deposits (the
huge Olympic Dam deposit in South Australia is the best example of
this type of deposit). The new results confirm the potential for
large IOCG-type economic deposits in association with the high-grade
veins.
Four drill holes were completed in the vicinity of near surface
underground workings to test the alteration system observed in
association with the mined conjugate vein system. Drill hole
TM-DH07-01 intersected significant polymetallic (silver, copper,
zinc, lead, bismuth and cobalt) mineralization separate from the
vein system over core lengths of more than 22 meters with 42.3 ppm
silver, 0.28% copper, 2.18% zinc, 0.66% lead, 46 ppb gold, 0.02%
bismuth and 0.02% cobalt. Drill hole TM-DH07-03 also intersected
significant polymetallic mineralization, but due to drilling
difficulties when the drill hole intersected mine workings, the
drill hole was abandoned in the zone of mineralization. TM-DH07-04
was abandoned before the vein system and appears to have intersected
a new zone of silver, copper, zinc and lead mineralization. True
thickness and dip of the intersected mineralization was not
determined. Results of drilling are summarized as follows:
|
Drill Hole |
From
(m) |
To
(m) |
Width
(m) |
Ag ppm |
Cu % |
Zn % |
Pb % |
Au ppb |
Bi % |
Co % |
|
TM-DH07-01 |
42.19 |
64.34 |
22.15 |
42.3 |
0.28 |
2.18 |
0.66 |
46 |
0.02 |
0.02 |
|
Including |
57.80 |
64.34 |
6.54 |
95.4 |
0.69 |
5.07 |
1.48 |
55 |
0.04 |
0.03 |
|
TM-DH07-03 |
57.56 |
62.49 |
4.93 |
29.7 |
1.09 |
0.11 |
0.03 |
80 |
0.02 |
0.03 |
|
Including |
58.42 |
59.36 |
0.94 |
51.8 |
4.78 |
0.39 |
0.05 |
270 |
0.03 |
0.03 |
|
TM-DH07-04 |
6.35 |
12.40 |
6.05 |
7.3 |
0.28 |
0.07 |
0.02 |
573 |
0.00 |
0.01 |
|
TM-DH07-02 |
9.17 |
11.79 |
2.62 |
39.2 |
0.13 |
0.33 |
0.25 |
9 |
0.01 |
0.05 |
Three of the completed drill holes were located southeast of the
Terra Mine vein system and spaced approximately 50 to 60 m apart
along a strike of approximately 125m. The fourth hole was located
northwest of the vein system oriented in the opposite direction to
the three other holes. Each drill hole was drilled perpendicular to
the near-vertical dipping veins with drill collar inclination angles
of between 45 and 50 degrees.
During the 2007 field season, Cooper Minerals collected surface grab
samples from previous mechanically stripped and washed bedrock
around the near surface mine workings. A suite of 50 samples from
this area representing the different types of alteration,
mineralization, structures and host rocks were collected and
submitted for assay. Assays of surface grab samples ranged from
259,000 ppm (7551 oz/t) to <1ppm Silver, 2266 ppb to <5ppb Gold,
6.42% to <0.01% Bismuth, 1.85% to <0.01% Cobalt, 2.18% to <0.01%
Copper, 8.01% to <0.01% Nickel, 5.64% to <0.01% lead, 7850ppm to
<1ppm Uranium and 5.40% to <0.01% Zinc. The assay results for
selected grab samples of the 50 bedrock samples collected are
summarized as follows:
|
Sample |
Ag ppm |
Cu % |
U308 % |
Zn % |
Pb % |
Bi % |
Co % |
Ni % |
Au ppb |
| T07-036 |
259,000 |
0.02 |
0.93 |
0.01 |
0.07 |
2.28 |
1.85 |
8.01 |
<5 |
| T07-010 |
9,715 |
1.28 |
- |
0.02 |
0.58 |
6.42 |
0.55 |
0.39 |
289 |
| T07-003 |
477 |
0.03 |
- |
0.00 |
0.12 |
1.13 |
1.21 |
0.04 |
67 |
| T07-038 |
54,200 |
0.02 |
0.21 |
0.01 |
0.02 |
0.03 |
1.51 |
3.33 |
<5 |
| T07-042 |
58,400 |
0.06 |
0.13 |
0.00 |
0.01 |
0.02 |
0.64 |
3.21 |
<5 |
| T07-013 |
11 |
0.09 |
0.13 |
0.01 |
0.00 |
0.00 |
0.01 |
0.00 |
<5 |
| T07-035 |
4,096 |
1.70 |
0.34 |
0.03 |
0.06 |
0.05 |
0.05 |
0.02 |
<5 |
| T07-037 |
530 |
0.17 |
0.17 |
0.06 |
0.02 |
0.01 |
0.02 |
0.01 |
<5 |
| T07-048 |
7 |
0.26 |
0.11 |
0.01 |
0.01 |
0.00 |
0.01 |
0.00 |
<5 |
| T07-050 |
4 |
0.06 |
0.10 |
0.01 |
0.00 |
0.00 |
0.00 |
0.00 |
<5 |
| T07-046 |
837 |
1.76 |
- |
5.40 |
3.87 |
0.00 |
0.03 |
0.01 |
207 |
| T07-044 |
34 |
0.01 |
- |
0.03 |
0.00 |
0.00 |
0.01 |
0.00 |
2266 |
| T07-005 |
44 |
2.18 |
- |
0.00 |
0.03 |
0.04 |
0.07 |
0.00 |
65 |
| T07-011 |
327 |
1.28 |
- |
0.01 |
0.02 |
0.09 |
0.53 |
0.02 |
<5 |
| T07-039 |
2,882 |
0.01 |
- |
0.02 |
0.00 |
0.00 |
0.02 |
0.08 |
<5 |
| T07-041 |
1,947 |
0.00 |
- |
0.01 |
0.00 |
0.00 |
0.03 |
0.14 |
<5 |
| T07-002 |
244 |
0.89 |
- |
0.02 |
0.02 |
0.18 |
0.11 |
0.00 |
71 |
| T07-008 |
216 |
0.47 |
- |
0.00 |
0.01 |
0.04 |
0.07 |
0.00 |
43 |
| T07-020 |
173 |
0.10 |
- |
0.02 |
0.00 |
0.00 |
0.01 |
0.00 |
21 |
| T07-040 |
387 |
0.00 |
- |
0.02 |
0.00 |
0.00 |
0.01 |
0.03 |
<5 |
| T07-030 |
83 |
0.14 |
- |
0.47 |
5.64 |
0.00 |
0.00 |
0.00 |
<5 |
The reported drill core and surface sample results confirm that a
much wider zone of alteration and high-grade polymetallic
mineralization is present at the Terra Mine site than was previously
known. The high-grade silver, copper, uranium, zinc, lead, bismuth,
cobalt, and nickel with significant gold mineralization is hosted
within the Terra Formation adjacent to the Rainy Lake Intrusive
Complex. Adjacent to the contact, the Terra Formation exhibits
intense iron alteration and brecciation along a strike of more than
4 kilometers and a width of approximately 500 meters. This location
is one of a number of significant IOCG-type targets identified
within the Terra Property.
The Olympic Dam (in Australia) or IOCG model is proposed as a
significant exploration target on Cooper Minerals' properties in
this part of the Great Bear magmatic zone. These polymetallic
targets have the potential to host billions of tonnes of copper,
gold and uranium mineralization (Olympic Dam type). The resource at
the Olympic Dam deposit (owned by BHP Billiton) was recently
increased to 7.7 billion metric tonnes grading 0.87 per cent copper,
0.29 kilogram per tonne uranium oxide, 0.30 gram per tonne gold and
1.61 grams per tonne silver. The Olympic Dam deposit is the largest
uranium deposit in the world, the fourth-largest copper deposit and
the fifth-largest gold deposit.
All sample collection, handling and shipping were supervised and the
integrity ensured by an independent professional geoscientist.
Samples were shipped in metal or plastic containers and all
containers were sealed with tamper evident tags prior to leaving the
property. The samples were submitted to Loring Laboratories Ltd.,
Calgary, Alberta and all tamper evident seals were intact upon
receipt at the laboratory.
Mike Magrum, PEng, a qualified person under National Instrument
43-101, has approved the technical content of this news release.
We seek Safe Harbor.
On behalf of the Board of Directors,
"Simon Tam"
Simon Tam,
President and Director
THE TSX VENTURE EXCHANGE HAS NOT REVIEWED AND DOES NOT ACCEPT RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS NEWS RELEASE. THIS NEWS RELEASE SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE SOLICITATION OF AN OFFER TO BUY SECURITIES IN ANY JURISDICTION. "SAFE HARBOR" STATEMENT UNDER THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995: THIS NEWS RELEASE CONTAINS FORWARD LOOKING STATEMENTS THAT ARE NOT HISTORICAL FACTS AND ARE SUBJECT TO RISKS AND UNCERTAINTIES WHICH COULD CAUSE ACTUAL RESULTS TO DIFFER MATERIALLY FROM THOSE SET FORTH IN OR IMPLIED HEREIN.
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