TomaGold intersects 27.75 m at 0.84 g/t Au on Obalski and increases grade of reanalyzed gold samples to up to 38%
2023年4月5日 - 8:30PM
TOMAGOLD CORPORATION (TSXV: LOT)
(OTCQB: TOGOF) (“
TomaGold” or the
“
Corporation”) is pleased to announce the results
of the year-end 2022 drilling program on its wholly owned Obalski
property, located 2 km south of Chibougamau, Quebec. In addition,
the Corporation presents the results of reanalysis of selected
samples from drilling on Obalski.
“While this latest program has continued to
intersect significant intersections on Obalski, we are particularly
excited about the reanalysis results, which have increased certain
historical gold grades significantly,” said David Grondin,
President and CEO of TomaGold. “After extensive testing by
independent laboratories, we have concluded that the mineral
material on Obalski needs to be grinded finer at 90% instead of 70%
for optimal results and that the best results appear to come from
lower grade intersections that do not have a nugget effect. To
further confirm our theory, close to 300 samples from previous
drilling were sent to the laboratory for reanalysis.”
Drilling program
After a compilation of geophysical surveys
carried out in several phases in 2021 and 2022 in the field and
through drilling, several resistivity and chargeability anomalies
were identified. Drilling recommendations were then submitted by
Abitibi Geophysics of Val-d'Or.
Following these recommendations, a program of
six NQ diameter holes totalling 2,958 metres was drilled on high
resistivity/low chargeability and low resistivity/high
chargeability anomalies. Hole OBS-22-020 tested a high-resistivity
anomaly and holes OBS-22-021 to OBS-22-025 tested two
low-resistivity/high-chargeability anomalies. The following table
presents the results obtained.
Hole |
From(m) |
To(m) |
Length(m)* |
Au g/t(70%grinding) |
Au g/t(90%grinding) |
Metalfactor(70%) |
Metalfactor(90%) |
Variationfollowingreanalysis |
OBS-22-020 |
122.85 |
122.35 |
0.50 |
0.21 |
No reanalysis performed |
OBS-22-021 |
264.0 |
264.5 |
0.50 |
0.81 |
No reanalysis performed |
|
387.3 |
391.5 |
4.20 |
0.25 |
|
437.0 |
437.5 |
0.50 |
0.29 |
OBS-22-022 |
52.55 |
53.9 |
1.35 |
0.44 |
No reanalysis performed |
|
312.0 |
315.1 |
3.10 |
0.43 |
|
421.7 |
423.85 |
2.15 |
0.46 |
OBS-22-023 |
119.3 |
120.9 |
1.60 |
2.89 |
No reanalysis performed |
|
458.0 |
458.5 |
0.50 |
0.52 |
OBS-22-024 |
366.4 |
366.9 |
0.50 |
2.49 |
No reanalysis performed |
|
406.65 |
409.65 |
3.00 |
1.05 |
|
412.6 |
414.0 |
1.40 |
0.28 |
OBS-22-025 |
451.8 |
479.55 |
27.75 |
0.76 |
0.84 |
21.09 |
23.31 |
+10.7 |
% |
* True width is estimated at 65-70% of core
length.
The result obtained from hole OBS-22-025 is
particularly significant. The hole intersected the A-Po mineralized
zone at a vertical depth of 400 metres. This intersection could
represent the A-Po zone which is intersected by a possible NNE-SSW
trending fault that would have caused remobilization of the
gold-bearing sulphides. This area will be the subject of further
drilling.
Location of drill holes
Hole |
Easting |
Northing |
Azimuth |
Dip |
Length |
OBS-22-020 |
543472 |
5524561 |
200° |
-50° |
417 |
OBS-22-021 |
543410 |
5524466 |
020° |
-50° |
468 |
OBS-22-022 |
543410 |
5524466 |
020° |
-60° |
543 |
OBS-22-023 |
543410 |
5524466 |
020° |
-70° |
558 |
OBS-22-024 |
543456 |
5524449 |
020° |
-50° |
471 |
OBS-22-025 |
543456 |
5524449 |
020° |
-60° |
501 |
Sample reanalysis
Since the acquisition of the Obalski project,
several questions have been raised about the validity of the
analytical methods used for gold and silver analysis. Some experts
have raised the possibility of the presence of halogens while
others have questioned the fineness of the initial grinding of the
half-core samples and the final pulp volume upon pulverization.
The Corporation thus proceeded with the
reanalysis of two groups of samples from significant mineralized
zones. The first group was designed to investigate the possible
presence of problematic halogens. A total of 44 pulp samples were
processed by direct cyanidation. The results showed no significant
difference between the fire assay and direct cyanidation methods.
The halogen problem was therefore ruled out.
The second group of 132 samples was carefully
selected for reprocessing from the original rejects. These rejects
were reground to 90% passing 2 mm instead of 70% passing 2 mm as
was done in the first fire assay. The Corporation also decided to
produce at least 1 kg of pulp at < 75 microns instead of 200 g
< 75 microns before the final 50 g batch for fire assay.
The following table shows the results obtained
for holes with a metal factor greater than 10. In addition, for
hole OBS-22-015A, we can see the difference between a high-grade
gold intersection due to a nugget effect and an intersection
without the high grade.
Hole |
From(m) |
To(m) |
Length(m)* |
Au g/t(70%grinding) |
Au g/t(90%grinding) |
Metalfactor(70%) |
Metalfactor(90%) |
Variationfollowingreanalysis |
OBS-22-005A |
390.25 |
439.5 |
49.25 |
0.21 |
0.22 |
10.34 |
10.84 |
+4.8 |
% |
OBS-22-015A(incl. 71 g/t) |
417.75 |
427.35 |
9.60 |
5.52 |
4.36 |
52.99 |
41.86 |
-11.1 |
% |
OBS-22-015A(excl. 71 g/t) |
417.75 |
426.70 |
8.95 |
0.71 |
0.82 |
6.35 |
7.34 |
+15.6 |
% |
OBS-22-016 |
259.5 |
283.5 |
24.00 |
0.32 |
0.44 |
7.68 |
10.56 |
+37.5 |
% |
OBS-22-025 |
451.8 |
479.55 |
27.75 |
0.76 |
0.84 |
21.09 |
23.31 |
+10.7 |
% |
* True width is estimated at 65-70% of core
length.
Considering that the number of samples
reanalyzed is relatively small, the Corporation has decided to
reanalyze approximately 300 additional samples to further
corroborate its theory.
Sample preparation and
analysisTomaGold has implemented and is adhering to a
strict Quality Assurance/Quality Control program for the current
drilling program. The core is sawed in half, with one half kept as
a witness sample in Chibougamau and the other half shipped directly
by bus to ALS Chemex in Val-d’Or, Quebec. ALS grinds the half core
to 1/8", split it into two halves and keeps one half as a witness
(reject) in Val-d’Or. ALS pulverizes the other half to minus 200
mesh, takes a 50 g sample for analysis and keeps the rest,
identified as “pulp”.
The technical content of this press release has
been reviewed and approved by André Jean, P.Eng., the Corporation’s
Director of Exploration and a qualified person under National
Instrument 43-101.
About the Obalski propertyThe
Obalski property covers 345 hectares about 2 km south of
Chibougamau, Quebec. Discovered in 1928, the Obalski deposit
produced 100,273 tonnes at grades of 1.14% Cu,
2.08 g/t Au and 6.04 g/t Ag from the A zone between 1964
to 1972, and around 9,000 tonnes at a reported grade of 8.5 g/t Au
from the D zone in 1984 (Source: SIGEOM and Camchib Exploration
internal reports).
About TomaGoldTomaGold
Corporation (TSXV: LOT) (OTCQB: TOGOF) is a Canadian mineral
exploration company engaged in the acquisition, assessment,
exploration and development of gold, copper, rare earth elements
and lithium projects. TomaGold holds interests in five gold
properties near the Chibougamau mining camp in northern Quebec:
Obalski, Monster Lake East, Monster Lake West, Hazeur and Doda
Lake, as well as a 24.5% interest through a joint venture with
Evolution Mining Ltd. and New Gold Inc. in the Baird property,
located near the Red Lake mining camp in Ontario. In addition, it
owns a 100% interest in a lithium property and in the Star Lake
rare earth elements property, located in the James Bay region of
Quebec.
Contact:David Grondin President
and Chief Executive Officer514-583-3490www.tomagoldcorp.com
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by the forward-looking statements contained in this press release.
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forward-looking statements. The Corporation undertakes no
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