DOT Announces New Copper Discovery
08 März 2010 - 12:00PM
Marketwired Canada
DOT Resources Ltd. (TSX VENTURE:DOT) ("DOT" or the "Corporation") is pleased to
announce that it has made a new copper discovery on its 100% owned Dot porphyry
copper property (the "Property") located 17 kilometres south of the Highland
Valley Mining District, in central British Columbia (see Figure 1).
SUMMARY
In October 2009, DOT commenced a drilling program with the objective of testing
a number of geophysical targets that were interpreted to be areas of copper
mineralization. After very encouraging visual inspection of core, DOT decided to
expand its drilling program into 2010 to take advantage of what the Corporation
believed to be other highly perspective targets. Eight of 15 diamond drill holes
("DDH") targeted one of those geophysical targets, the West Zone. The analytical
results for those 8 DDH have now been received.
These 8 DDH have resulted in the discovery of a new zone of copper
mineralization characterized by widespread, fracture controlled and disseminated
native copper mineralization in potassic and argillic altered granodiorite.
Native copper mineralization has been intersected over an area that measures 800
metres ("m") by 300 m and is open along the interpreted strike and width. Native
copper is the only copper mineral intersected in the West Zone. In contrast, the
Southeast Zone, located 700 m to the east of the West Zone contains
chalcopyrite-bornite mineralization which suggests that two separate porphyry
style mineralizing events have occurred within this area of the DOT property.
West Zone
Six of the eight DDH intersected significant copper-silver mineralization. Each
mineralized hole intersected two zones of copper-silver-gold mineralization
typically with a narrower higher grade zone within the broader mineralized
interval. One hole failed to reach bedrock and one hole did not intersect
significant copper mineralization. Trace concentrations of native copper was
observed throughout the core for the six mineralized DDH resulting in a high
(greater than 400 parts per million) copper background concentration. The
weighted average grade of the mineralized intervals in the West Zone was
estimated using a 0.05% copper cut-off grade. The apparent length and weighted
average grades for the two DDH drilled on this zone are set out in Table 1.
Table 1 - West Zone Diamond Drilling Results
---------------------------------------------------------------------------
Total From To
---------------------------------------------------------------------------
DDH # Northing Easting Azimuth Dip Depth (m) (m) (m)
---------------------------------------------------------------------------
No Significant
DOT-09-W-01 5575552 652895 0 -90 304.50 Mineralization
---------------------------------------------------------------------------
DOT-09-W-02 5575578 652372 0 -90 301.45 149.19 157.43
168.19 183.95
including 178.90 181.9
---------------------------------------------------------------------------
DOT-09-W-03 5575005 651975 0 -90 301.45 51.20 91.36
including 57.61 63.61
129.93 136.26
---------------------------------------------------------------------------
DOT-09-W-04 5574876 651955 65 -60 319.13 185.01 190.12
196.26 205.04
---------------------------------------------------------------------------
Did not reach
DOT-10-W-05 5574877 651957 65 -45 111.25 bedrock
---------------------------------------------------------------------------
DOT-10-W-06 5574938 652065 0 -90 303.28 76.59 106.76
124.70 151.85
---------------------------------------------------------------------------
DOT-10-W-07 5574952 651900 60 -55 273.41 131.70 151.68
206.58 211.82
---------------------------------------------------------------------------
DOT-10-W-08 5575105 651945 0 -90 274.02 202.52 203.94
217.45 220.72
---------------------------------------------------------------------------
-------------------------------------------------------------
Interval Copper Silver Gold
-------------------------------------------------------------
DDH # (m) (%) (g/t) (g/t)
-------------------------------------------------------------
DOT-09-W-01 No Significant Mineralization
-------------------------------------------------------------
DOT-09-W-02 8.24 0.25 0.27 0.01
15.76 0.30 1.47 0.01
3.00 1.76 7.76 0.08
-------------------------------------------------------------
DOT-09-W-03 40.16 0.36 1.49 0.00
6.00 1.69 6.72 0.03
6.33 0.22 0.96 0.00
-------------------------------------------------------------
DOT-09-W-04 5.11 0.16 0.59 0.01
8.78 0.22 0.53 0.00
-------------------------------------------------------------
DOT-10-W-05 Did not reach bedrock
-------------------------------------------------------------
DOT-10-W-06 30.17 0.15 0.16 0.03
27.14 0.34 0.45 0.02
-------------------------------------------------------------
DOT-10-W-07 19.96 0.33 0.89 0.02
5.24 0.16 0.50 0.02
-------------------------------------------------------------
DOT-10-W-08 1.42 0.45 4.23 0.04
3.27 0.45 4.23 0.04
-------------------------------------------------------------
The intervals set out in the above table are not true widths.
The weighted average grade of the mineralized interval in DDH-DOT-09-W-02 from
168.19 m to 183.95 m is influenced by a 3 m interval that assayed 1.76% copper
and 7.76 grams per tonnes ("g/t") silver. The interval from 51.20 m to 91.36 m
in DDH-DOT-09-W-03 is influenced by a 6 m interval that assayed 1.69% copper and
6.72 g/t silver.
Diamond Drilling and Sampling Procedures
Diamond drilling is completed using a 76 mm diameter core barrel. The average
core recovery is estimated to be greater than 96% although recoveries of 50%
were recorded over narrow (less than 5.0 m) intervals. The cores were split
using a manual splitter and one half of the core was collected for sample
preparation and analysis and the other half is retained for future reference.
Sample intervals were selected based on lithologies and intensity of alteration.
The sample intervals varied between one and two metres and sample weights ranged
from 2.0 to 4.0 kilograms respectively.
Sample preparation was completed by EcoTech Laboratories ("EcoTech") located in
Kamloops, British Columbia using the following procedure: Core samples are
prepared using a 2 stage crushing on a jaw crusher to 70% passing 10 mesh
screen. A 250 gram sub-sample of the crushed material is pulverized on a ring
mill to 95% passing minus 150 mesh screen. The sub sample is rolled and
homogenized.
After initially analyzing the samples on the ICP/MS all samples with greater
than 1,000 ppm copper are assayed using the Aqua Regia Assay method.
A metallic preparation was also used to determine copper concentration in the
core samples from the West zone. Rock samples are two stage crushed to minus 10
mesh, then split to achieve a 1,000 gram (approximate) sub sample. The sample is
pulverized to 95% -140 mesh. The sample is weighed, then rolled and homogenized
and screened at 140 mesh.
The -140 mesh fraction is homogenized and 2 samples are digested for a Cu assay.
The +140 mesh material is assayed entirely. The sample is digested with an aqua
regia digestion in 200 ml phosphoric acid flasks. The digested solutions are
made to volume with RO water and allowed to settle. They are analyzed on a
Perkin Elmer atomic absorption machine using air-acetylene flame to 0.01 grams/t
detection limit. The values are calculated back to the original sample weight
providing a net copper value as well as 2-140 values and a single +140 mesh
value.
Gold analyses are completed on a 30 gram sample and a repeat sample is completed
for every 10 samples. The samples are fused along with proper fluxing materials
and the resulting bead is digested in Aqua Regia and analyzed by atomic
absorption. Over-range values are re-analyzed using gold assay methods.
(Detection limit 1-5 ppb AA). EcoTech has a 9001 International Standard
Organization ("ISO") rating and is independent of DOT.
ABOUT DOT
DOT is a Canadian corporation currently focused on the exploration and
development of its copper property in central British Columbia. The Corporation
is planning to assess future copper and copper-gold properties for exploration
and development opportunities throughout North and South America.
DOT shares trades on the TSX Venture exchange under the symbol DOT. The
Corporation's website can be accessed at www.dotresourcesltd.com.
Elmer B. Stewart, MSc. P. Geol., a Director of DOT, is the Corporation's
nominated Qualified Person responsible for monitoring the supervision and
quality control of the programs completed within the Dot Project. Mr. Stewart
has reviewed and verified the technical information contained in this news
release.
Forward-Looking Statements
Certain statements contained in this news release constitute "forward-looking
statements" as such term is used in applicable Canadian and US securities laws.
These statements relate to analyses and other information that are based on
forecasts of future results, estimates of amounts not yet determinable and
assumptions of management. In particular, statements concerning obtaining
additional assay results by the end of February and other factors or events
described in this news release should be reviewed as forward-looking statements
to the extent they involve estimates thereof.
Such forward looking statements involve known and unknown risks, uncertainties
and other factors which may cause the actual results, performance or
achievements of the Corporation to be materially different from any future
results, performance or achievements expressed or implied by such
forward-looking statements. Such risks and other factors include, among others;
general market conditions and such other business risks as discussed herein and
other publicly filed disclosure documents. Although the Corporation has
attempted to identify important factors that could cause actual events or
results to differ materially from those described in forward-looking statements,
there may be factors that cause actions, events or results not to be as
anticipated, estimated of intended. There can be no assurance that such
statements will prove to be accurate as actual results and future events could
vary or differ materially from those anticipated in such statements.
Accordingly, readers should not place undue reliance on forward-looking
statements contained in this news release.
Forward-looking statements are made based on management's beliefs, estimates and
opinions on the date the statements are made and the Corporation undertakes no
obligation to update forward-looking statements should these beliefs, estimates
and opinions or other circumstances change, except as required by applicable
law. Investors are cautioned that such forward-looking statements involve risks
and uncertainties. The forward-looking statements contained herein are expressly
qualified by this cautionary statement.
To view Figure 1-DOT Diamond Drill Hole Location Map, please visit the following
link:
http://media3.marketwire.com/docs/dot0308.pdf
Isoenergy (TSX:ISO)
Historical Stock Chart
Von Jun 2024 bis Jul 2024
Isoenergy (TSX:ISO)
Historical Stock Chart
Von Jul 2023 bis Jul 2024
Echtzeit-Nachrichten über Isoenergy Ltd (Toronto Börse): 0 Nachrichtenartikel
Weitere Iso Tis News-Artikel