Chapleau Intersects 4.50 m of 9.09 g/t Gold (Au) and 39.80 g/t Silver (Ag) on the Coringa Gold Project, Brazil
2008年5月14日 - 3:28AM
Marketwired Canada
Chapleau Resources Ltd. (TSX VENTURE:CHI) continues to intersect high grade gold
and silver at depth on the Serra structure at the Coringa gold project in
Brazil. Hole 61 intersected 4.50 m of 9.09 g/t gold (Au), 39.80 g/t silver (Ag),
0.44 % lead (Pb), 0.28 % zinc (Zn) and 0.17 % copper (Cu) from 98.50 to 103.00
m. Included within this interval was:
- 42.98 g/t (1.26 oz/t) Au, 126 g/t (3.68 oz/t) Ag, 3.50 % Pb, 1.90 % Zn and
0.15 % Cu from 98.50 to 99.00 m,
- 33.56 g/t (0.98 oz/t) Au, 219.00 g/t (6.39 oz/t) Ag, 0.33 % Pb, 0.43 % Zn and
1.30 % Cu from 101.70 to 102.20 m.
This hole was drilled approximately 40.00 m east of Hole 39 with a previously
reported intersection of 1.00 m of 14.94 g/t Au, and 0.65 % Cu from 66.50 to
67.50 m.
Gold mineralization over 5.00 m was also intersected at a depth of 113.50 m on
the Meio structure. Hole 65 intersected 5.00 m of 3.57 g/t Au, 28.73 g/t Ag,
2.23 % Pb, 1.91 % Zn and 0.25 % Cu from 113.50 to 118.50 m. This hole was
drilled approximately 33.00 m northeast of Hole 62 with a previously reported
intersection of 3.00 m of 67.77 g/t (1.92 oz/t) Au, 65.17 g/t (1.90 oz/t) Ag,
6.03 % Pb, 4.35 % Zn and 0.45 % Cu from 56.00 to 59.00 m (click link to see
location map on website: www.chapleauresources.com/projectmaps.php?ID=11).
Results for the second phase drilling, totaling 5,031.70 m, have now been
received and a total of 6,805.83 m (66 diamond drill holes) have been completed
in two drill campaigns in the past 12 months (click link to see drill location
map on website: www.chapleauresources.com/projectmaps.php?ID=11 ). Drilling has
confirmed high grade gold intersections within larger envelopes of gold, silver,
lead, zinc and copper mineralization associated with approximately 2.2 km of
gold veins. The 2.2 km of gold veins represent less than a quarter of the total
10 km strike length of 17 mapped gold structures.
Preliminary interpretations and in-house long sections for the 2.2 km of
mineralization associated with three of eight target areas show gold grades,
gold equivalent grades(1) and thicknesses which are open at depth and along
strike of the areas drilled (click link to see long section interpretations on
website: www.chapleauresources.com/projectmaps.php?ID=11). These preliminary
interpretations, showing the nature of the gold, silver and base metal
mineralization, will now be used to expand future drill programs to explore:
1. plunging mineralized structures at depths of greater than 150m,
2. mineralized extensions below covered areas, and
3. areas where limited drilling, one or two holes, has indicated gold-bearing
structures along strike of the higher grade gold zones.
Further follow-up drilling of the eight target areas and other mineralized
structures, as identified from reconnaissance pan concentrate sampling programs
will proceed once additional geophysical programs and soil sampling have been
completed in areas of cover beyond the current drilling (click link to see map
on website: www.chapleauresources.com/projectmaps.php?ID=11).
(1) For the long section interpretations on the Chapleau website gold grades
were composited over 1.50 m intervals for the individual drill holes. Gold
equivalent grades were based on the assumption that 79 to 94 % of Ag, Pb Zn and
Cu, similar to gold recoveries, can be obtained through flotation methods (see
press release of May 07, 2008). Gold equivalent calculations were based on the
following metal prices: Gold-US$800/oz, Silver-US$12/oz, Copper-US$2.50/lb,
Lead-US$0.80/lb and Zinc-US$0.80/lb.
The summary of gold, silver, lead, zinc and copper results for the remaining
holes on the Meio, Serra, Boca and Das Pacas structures are highlighted in the
tables below.
Summary of Drill Hole Results: Meio Structure
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Structure Mineralization
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Hole BR_COR_# From To Width Gold Silver Copper Lead Zinc
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M g/t g/t % % %
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Meio
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DDH 11(i) 50.00 52.00 2.00 23.67 28.25 0.22 1.67 0.88
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DDH 12(i) 49.00 50.00 1.00 3.43 4.00 - 0.12 -
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DDH 62(i) 56.00 56.50 0.50 3.47 10.00 0.03 0.87 0.26
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56.50 57.00 0.50 59.80 65.00 0.37 8.60 5.20
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57.00 57.50 0.50 25.56 40.00 0.50 1.80 0.85
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57.50 58.00 0.50 149.80 135.00 0.61 10.40 11.00
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58.00 58.50 0.50 82.31 76.00 0.58 6.80 2.50
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58.50 59.00 0.50 73.70 65.00 0.63 7.70 6.30
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59.00 63.50 4.50 0.69 BD - 0.33 0.18
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DDH 63 52.00 52.50 0.50 0.65 BD - - -
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DDH 65 113.50 118.50 5.00 3.57 28.73 0.25 2.23 1.91
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includes 116.50 117.00 0.50 10.81 31.00 0.72 7.40 1.60
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Summary of Drill Hole Results: Serra, Boca and Das Pacas Structure
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Structure Mineralization
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Hole BR_COR_# From To Width Gold Silver Copper Lead Zinc
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M g/t g/t % % %
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Serra
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DDH 61 63.50 64.00 0.50 6.42 24.00 0.11 - -
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98.50 103.00 4.50 9.09 39.80 0.17 0.44 0.28
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Includes 98.50 99.00 0.50 42.98 126.00 0.15 3.50 1.90
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Includes 101.70 102.20 0.50 33.56 219.00 1.30 0.33 0.43
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DDH 64 100.50 102.00 1.50 2.12 3.30 - - -
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157.00 158.00 1.00 1.18 31.60 - 0.35 0.15
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Boca
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DDH 58 138.00 138.50 0.50 3.67 1.10 - - -
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DDH 60(i) 82.50 83.00 0.50 2.11 BD - - -
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Das Pacas
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DDH 66 No significant results
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(i) Previously reported results
- BD - Below detection limit of less than 0.1 g/t Ag
- Gold assays greater than 0.5 g/t Au are reported with the exception of
gold values included within mineralized intervals with widths of greater
than 1 m.
- Cu, Pb and Zn values greater than 0.1 % are reported with the exception
of Cu, Pb and Zn values included within mineralized intervals with widths
of greater than 1 m.
Drill holes were inclined at between 50 degrees and 60 degrees with a maximum of
185.10 m core length. Core recovery for the mineralized intervals averaged
greater than 95%. The estimated true widths of all the mineralized intervals are
approximately 90% of the intersected widths in the holes. Gold mineralization
occurs within silicified, quartz veined and sericite altered shear zones
surrounded by hematitic and propylitic envelopes within granite and rhyolites.
Principal sulphide mineralization includes pyrite, galena, sphalerite and
chalcopyrite between 0.5% and 20.0%.
Drill cores for assaying from Holes 46 to 66 were taken at a minimum of 0.2 m
and maximum of 2.0 m intervals. All core samples (HQ diameter) were cut with a
diamond saw and one-half of the core placed in bags, numbered and sealed then
sent via a secure transport agency to the SGS Geosol laboratory in Itaituba in
Brazil for preparation and the pulps sent directly to the SGS Geosol laboratory
in Belo Horizonte and Vespasiano for analysis. The core samples were crushed
down to 2 mm, a split of 250 to 300 g was taken and pulverized to better than
95% minus 150 mesh. Gold analysis was by fire assay of a 30 g sample and an
atomic absorption finish. Silver and additional 32 elements using aqua regia
acid digestion were analyzed by Inductively Coupled Plasma (ICP). As part of the
Company's QA/QC program duplicates, blanks and internationally recognized
standards were included in the sample batches to check on assay precision and
accuracy. SGS Geosol which is an ISO 9001:2000 and ISO 14001: 2004 registered
laboratory also has a quality control program in place which includes standards
and duplicates.
This press release was prepared by Ian Gendall, Pr. Sci. Nat., a qualified
person in compliance with National Instrument 43-101.
For technical information regarding this press release, kindly contact Ian
Gendall at 604-669-8511.
BY ORDER OF THE BOARD OF DIRECTORS
Signed:
CHAPLEAU RESOURCES LTD.
Ian Gendall/President
This news release may contain forward-looking statements including but not
limited to comments regarding the timing and content of upcoming work programs,
geological interpretations, receipt of property titles, potential mineral
recovery processes, etc. Forward-looking statements address future events and
conditions and therefore, involve inherent risks and uncertainties. Actual
results may differ materially from those currently anticipated in such
statements.
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