Liberty Gold Corp. (TSX: LGD; OTCQX: LGDTF) ("Liberty Gold" or the
"Company") is pleased to announce the results from a
recently-completed sonic drilling program at the Goldstrike Oxide
Gold Project in southwestern Utah (“Goldstrike”). The purpose of
the program was to obtain material for metallurgical testing from
the historic heap leach pads (“HHLP”), to determine how much gold
remains and to what extent it can be recovered in a new heap leach
mining operation. The program followed a 2018 reverse circulation
(“RC”) drilling program, which indicated that considerable gold
remains in the HHLP and in underlying backfill material.
Liberty Gold completed 815 metres (“m”) of sonic
drilling in 23 holes in the two leach pads making up the HHLP and
in adjacent and underlying backfill areas. All holes returned at
least 15 m true thickness of above reporting cut-off grade (0.15
grams per tonne gold “g/t Au”) oxide gold mineralization, with some
holes in the thicker portions of the pads returning up to 44 m of
continuous mineralization. Cyanide solubility of gold in
assay pulps, as expected, returned a wide range of values, but
generally showed a good correlation between grade and solubility,
with some higher-grade intervals returning in excess of 90% cyanide
solubility. These data suggest that much of the gold in the HHLP
was incompletely leached during the historic mining operation and
is potentially available for extraction by
re-leaching.
Material from the sonic drilling program will be
shipped to Kappes Cassiday Associates in Reno, Nevada for
metallurgical column testing under the guidance of the Company’s
metallurgical consultant, Gary Simmons. Data from this program and
the RC drilling will be used to estimate the gold available for
leaching within the HHLP in support of further engineering
studies.
Jon Gilligan, COO of Liberty Gold stated, “We
are extremely pleased with the results of the sonic drilling
program. With approximately 7.5 million tonnes of
previously-leached material contained in these two pads, much of it
still contains gold, it is likely that a significant portion could
be re-treated in a modern heap leach operation. This study could
enhance the economics of any future operation considerably,
particularly in the crucial first year or two of operation. We look
forward to the results of the metallurgical testing so we can take
the next steps in optimising the economic viability of the
Goldstrike deposit.”
For a map and cross sections of the sonic drilling, including
drill collars and traces for the current release, please click
here:https://libertygold.ca/images/news/2022/August/Goldstrike_NR08092022MapSection.pdf
For a complete table of drill results from current Liberty Gold
drill holes at Goldstrike, please click
here: https://libertygold.ca/images/news/2022/August/GS_Intercepts08092022.pdf
SONIC DRILLING HIGHLIGHT TABLE*
Hole ID (Az, Dip) (degrees) |
From (m) |
To (m) |
Intercept (m) |
Au (g/t) |
Au Cut-Off |
Hole Length (m) |
Target |
Comments |
g/t x m |
AuCN/ AuFA% |
|
|
|
|
|
|
|
|
|
|
|
PGS873 (0, -90) |
1.5 |
38.1 |
36.6 |
0.63 |
0.15 |
46.5 |
Leachpad 2 |
Leachpad |
30.8 |
56% |
including |
9.1 |
38.1 |
29.0 |
0.75 |
0.20 |
57% |
and including |
35.1 |
38.1 |
3.0 |
2.97 |
1.00 |
68% |
and |
38.1 |
45.7 |
7.6 |
1.02 |
0.20 |
Backfill |
46% |
including |
38.1 |
42.7 |
4.6 |
1.51 |
1.00 |
45% |
|
|
|
|
|
|
|
|
|
|
|
PGS876 (0, -90) |
0.0 |
38.1 |
38.1 |
0.27 |
0.15 |
51.1 |
Leachpad 2 |
Leachpad |
12.9 |
54% |
including |
4.6 |
38.1 |
33.5 |
0.28 |
0.20 |
55% |
and |
38.1 |
42.7 |
4.6 |
0.59 |
0.20 |
Backfill |
41% |
including |
41.1 |
42.7 |
1.5 |
1.00 |
1.00 |
50% |
|
|
|
|
|
|
|
|
|
|
|
PGS879 (0, -90) |
3.0 |
21.3 |
18.3 |
0.49 |
0.15 |
35.1 |
Leachpad 2 |
Leachpad |
12.6 |
60% |
including |
4.6 |
21.3 |
16.8 |
0.52 |
0.20 |
62% |
and |
21.3 |
35.1 |
13.7 |
0.27 |
Backfill |
62% |
|
|
|
|
|
|
|
|
|
|
|
PGS881 (0, -90) |
0.0 |
9.1 |
9.1 |
0.24 |
0.15 |
30.5 |
Leachpad 2 |
Leachpad |
7.6 |
71% |
including |
0.0 |
7.6 |
7.6 |
0.25 |
0.20 |
72% |
and |
15.2 |
22.9 |
7.6 |
0.71 |
0.15 |
52% |
including |
16.8 |
22.9 |
6.1 |
0.85 |
0.20 |
52% |
and including |
19.8 |
21.3 |
1.5 |
1.59 |
1.00 |
45% |
|
|
|
|
|
|
|
|
|
|
|
PGS884 (0, -90) |
0.0 |
19.8 |
19.8 |
0.31 |
0.20 |
50.3 |
Leachpad 2 |
Leachpad |
17.1 |
51% |
and |
19.8 |
42.7 |
22.9 |
0.48 |
0.15 |
Backfill |
63% |
including |
19.8 |
33.5 |
13.7 |
0.67 |
0.20 |
61% |
and including |
30.5 |
33.5 |
3.0 |
1.46 |
1.00 |
59% |
|
|
|
|
|
|
|
|
|
|
|
PGS887 (0, -90) |
0.0 |
15.2 |
15.2 |
0.57 |
0.15 |
25.9 |
Leachpad 2 |
Leachpad |
11.8 |
83% |
including |
0.0 |
13.7 |
13.7 |
0.61 |
0.20 |
84% |
and including |
0.0 |
3.0 |
3.0 |
1.16 |
1.00 |
84% |
and including |
6.1 |
7.6 |
1.5 |
1.03 |
94% |
including |
15.2 |
22.9 |
7.6 |
0.40 |
0.20 |
Backfill |
88% |
|
|
|
|
|
|
|
|
|
|
|
PGS888 (0, -90) |
0.0 |
13.7 |
13.7 |
0.60 |
0.20 |
28.2 |
Leachpad 2 |
Leachpad |
11.0 |
71% |
including |
12.2 |
13.7 |
1.5 |
1.09 |
1.00 |
90% |
and |
13.7 |
16.8 |
3.0 |
0.35 |
0.20 |
Backfill |
80% |
and |
18.3 |
28.2 |
9.9 |
0.18 |
0.15 |
61% |
|
|
|
|
|
|
|
|
|
|
|
PGS890 (0, -90) |
0.0 |
18.3 |
18.3 |
0.43 |
0.15 |
35.1 |
Leachpad 1 |
Leachpad |
9.6 |
44% |
including |
4.6 |
18.3 |
13.7 |
0.52 |
0.20 |
45% |
and |
27.4 |
33.5 |
6.1 |
0.27 |
0.15 |
Backfill |
65% |
|
|
|
|
|
|
|
|
|
|
|
PGS891 (0, -90) |
0.0 |
25.9 |
25.9 |
1.02 |
0.15 |
35.8 |
Leachpad 1 |
Leachpad |
26.3 |
80% |
including |
0.0 |
18.3 |
18.3 |
1.37 |
0.20 |
82% |
and including |
4.6 |
13.7 |
9.1 |
2.17 |
1.00 |
86% |
and including |
15.2 |
16.8 |
1.5 |
1.15 |
82% |
|
|
|
|
|
|
|
|
|
|
|
PGS892 (0, -90) |
0.0 |
30.5 |
30.5 |
0.63 |
0.20 |
39.6 |
Leachpad 1 |
Leachpad |
19.3 |
79% |
including |
4.6 |
7.6 |
3.0 |
1.75 |
1.00 |
93% |
including |
10.7 |
12.2 |
1.5 |
1.09 |
80% |
|
|
|
|
|
|
|
|
|
|
|
PGS894 (0, -90) |
0.0 |
24.4 |
24.4 |
0.54 |
0.15 |
29.7 |
Leachpad 1 |
Leachpad |
13.2 |
66% |
including |
9.1 |
24.4 |
15.2 |
0.77 |
0.20 |
70% |
and including |
13.7 |
15.2 |
1.5 |
1.29 |
1.00 |
90% |
and including |
21.3 |
24.4 |
3.0 |
1.23 |
71% |
|
|
|
|
|
|
|
|
|
|
|
PGS895 (0, -90) |
1.5 |
19.8 |
18.3 |
0.77 |
0.15 |
29.0 |
Leachpad 1 |
Leachpad |
14.1 |
86% |
including |
1.5 |
18.3 |
16.8 |
0.82 |
0.20 |
86% |
and including |
10.7 |
18.3 |
7.6 |
1.51 |
1.00 |
91% |
|
|
|
|
|
|
|
|
|
|
|
PGS897 (0, -90) |
1.5 |
19.8 |
18.3 |
0.37 |
0.20 |
25.9 |
Leachpad 1 |
Leachpad |
7.3 |
66% |
including |
1.5 |
3.0 |
1.5 |
1.75 |
1.00 |
95% |
and |
19.8 |
21.3 |
1.5 |
0.23 |
0.15 |
Backfill |
66% |
|
|
|
|
|
|
|
|
|
|
|
PGS899 (0, -90) |
0.0 |
13.7 |
13.7 |
0.68 |
0.20 |
22.9 |
Hassayampa Pit |
Backfill |
9.4 |
60% |
including |
0.0 |
4.6 |
4.6 |
1.14 |
1.00 |
69% |
|
|
|
|
|
|
|
|
|
|
|
PGS900 (0, -90) |
0.0 |
41.9 |
41.9 |
0.30 |
0.15 |
41.9 |
Hamburg Pit |
Backfill |
12.8 |
79% |
including |
0.0 |
9.1 |
9.1 |
0.46 |
0.20 |
89% |
*Please refer to the full table at the link above for complete
results. Results are reported as drilled thicknesses, with true
thicknesses approximately 90% to 100% of drilled thickness. Gold
grades are uncapped. Au (g/t) = grams per tonne of gold.
“AuCN/AuFA” is the ratio of cyanide soluble gold (recovered using
the method described in the Quality Assurance – Quality Control
section below) to gold by fire assay, expressed as percent.
KEY POINTS:
- A Sonic drilling
program consisting of 815 m in 23 holes was completed on and
adjacent to the historic heap leach pads at Goldstrike. A sonic
drill rig uses an ultrasonic vibration to drill without the use of
drilling mud and is the “best practice” drilling technique to
sample unconsolidated rock piles.
- Sonic drilling
of the HHLP returned thick, above reporting cut-off intervals of
gold mineralization in every drill hole.
- Much of the gold
exhibits moderate to high cyanide solubility, with over 90%
solubility in higher-grade intervals.
- The high grades
and cyanide solubility suggest that portions of the HHLP contain
gold that was not recovered during the original mining operation,
and which may be available for recovery in a future operation.
- Results will be
used to determine the gold content remaining in the HHLP, while
composites of the drilled material will be used for metallurgical
column testing to determine how much of the gold is recoverable by
heap leaching.
- The backfill
material directly underlying the leach pads also contains gold,
including 22.9 m grading 0.48 g/t Au in PGS884. Backfill material
adjacent to the HHLP is also mineralized, including 13.7 m grading
0.68 g/t Au in PGS899.
ABOUT GOLDSTRIKE
Goldstrike is located in the eastern Great
Basin, immediately adjacent to the Utah/Nevada border, and is a
Carlin-style gold system, similar in many ways to the prolific
deposits located along Nevada’s Carlin trend. Like Black Pine
and the Nevada Gold Mines Long Canyon deposit, Goldstrike
represents part of a growing number of Carlin-style gold systems
located off the main Carlin and Cortez trends in underexplored
parts of the Great Basin.
Goldstrike is a past-producing, open-pit run of
mine heap-leach operation that produced 209,000 ounces (“oz”) of
gold and 197,000 oz of silver between 1988 and 1994 during a period
of historically low gold prices. Ore was mined from 12 shallow
pits, at an average grade of 1.2 g/t Au. Liberty Gold carried out
extensive compilation, drilling and metallurgical work, releasing a
resource estimate and Preliminary Economic Assessment (“PEA”) in
2018. The resource includes an Indicated 925,000 ounces (“oz”) of
gold grading 0.50 g/t Au (57,846,000 tonnes) and an Inferred
296,000 oz of gold grading 0.47 g/t Au (19,603,000 tonnes), backed
by over 1,700 drill holes. The PEA mines 915,516 oz of gold at a
life of mine all in sustaining costs of US$793/oz, returning a NPV
at a 5% discount rate (“NPV5%”) of US$129.5 million and an IRR of
29.4% at US$1,300/oz gold prices. A sensitivity analysis using
US$1,700/oz gold returns an NPV5% of US$291.7 million and an
Internal Rate of Return of 52.4% representing strong economic
returns at current gold prices.
The 2022 drilling campaign is in progress
including metallurgical and RC resource drilling. On completion of
this program the RC drill will be moved to the Black Pine oxide
gold deposit in Idaho to accelerate resource drilling and the
testing of new regional gold targets.
A virtual site tour and 3D model of the
Goldstrike property, including details about the geology and
mineralization, is available on the Company’s
website: libertygold.ca
QUALITY ASSURANCE – QUALITY
CONTROLDrill composites were calculated using cut-offs of
0.15 g/t Au, 0.20 g/t Au and 1.00 g/t Au. Drill intersections are
reported as drilled thicknesses. True widths of the mineralized
intervals vary between 30% and 100% of the reported lengths due to
varying drill hole orientations but are typically in the range of
60% to 80% of true width. Drill samples were assayed by ALS Limited
in Reno, Nevada for gold by Fire Assay of a 30 gram (1 assay ton)
charge with an AA finish, or if over 5.0 g/t Au were re-assayed and
completed with a gravimetric finish. For these samples, the
gravimetric data were utilized in calculating gold intersections.
For any samples assaying over 0.200 ppm an additional cyanide leach
analysis is done where the sample is treated with a 0.25% NaCN
solution and rolled for an hour. An aliquot of the final leach
solution is then centrifuged and analyzed by Atomic Absorption
Spectroscopy. QA/QC for all drill samples consists of the insertion
and continual monitoring of numerous standards and blanks into the
sample stream, and the collection of duplicate samples at random
intervals within each batch. Selected holes are also analyzed for a
51 multi-element geochemical suite by ICP-MS. ALS Geochemistry-Reno
is ISO 17025:2005 Accredited, with the Elko prep lab listed on the
scope of accreditation.
QUALIFIED PERSONMoira Smith,
Ph.D., P.Geo., Vice-President Exploration and Geoscience, Liberty
Gold, is the Company's designated Qualified Person for this news
release within the meaning of National Instrument 43-101 Standards
of Disclosure for Mineral Projects ("NI 43-101") and has reviewed
and validated that the information contained in the release is
accurate.
ABOUT LIBERTY GOLDLiberty Gold
is focused on exploring for and developing open pit oxide deposits
the Great Basin of the United States, home to large-scale gold
projects that are ideal for open-pit mining. This region is one of
the most prolific gold-producing regions in the world and stretches
across Nevada and into Idaho and Utah. We know the Great Basin and
are driven to discover and advance big gold deposits that can be
mined profitably in open-pit scenarios. Our flagship projects are
Black Pine in Idaho and Goldstrike in Utah, both past- producing
open-pit mines, where previous operators only scratched the
surface.
For more information, visit libertygold.ca or
contact:Susie Bell, Manager, Investor
RelationsPhone: 604-632-4677 or Toll Free
1-877-632-4677info@libertygold.ca
All statements in this press release, other than
statements of historical fact, are "forward-looking information"
with respect to Liberty Gold within the meaning of applicable
securities laws, including statements that address potential
quantity and/or grade of minerals, the potential size of the
mineralized zone, plans with respect to exploration and development
plans of Goldstrike and the timing thereof, and the objectives of
the drilling program. Forward-looking information is often, but not
always, identified by the use of words such as "seek",
"anticipate", "plan", "continue", "planned", "expect", "project",
"predict", "potential", "targeting", "intends", "believe",
"potential", and similar expressions, or describes a "goal", or
variation of such words and phrases or state that certain actions,
events or results "may", "should", "could", "would", "might" or
"will" be taken, occur or be achieved. Forward-looking information
is not a guarantee of future performance and is based upon a number
of estimates and assumptions of management at the date the
statements are made including, among others, assumptions about
future prices of gold, and other metal prices, currency exchange
rates and interest rates, favourable operating conditions,
political stability, obtaining governmental approvals and financing
on time, obtaining renewals for existing licenses and permits and
obtaining required licenses and permits, labour stability,
stability in market conditions, the impact from the pandemic of the
novel coronavirus (COVID-19), availability of equipment, timing of
the publication of any technical reports, the availability of drill
rigs, successful resolution of disputes and anticipated costs and
expenditures. Many assumptions are based on factors and events that
are not within the control of Liberty Gold and there is no
assurance they will prove to be correct.
Such forward-looking information, involves known
and unknown risks, which may cause the actual results to be
materially different from any future results expressed or implied
by such forward-looking information, including, risks related to
the interpretation of results and/or the reliance on technical
information provided by third parties as related to the Company’s
mineral property interests; changes in project parameters as plans
continue to be refined; current economic conditions; future prices
of commodities; possible variations in grade or recovery rates; the
costs and timing of the development of new deposits; failure of
equipment or processes to operate as anticipated; the failure of
contracted parties to perform; the timing and success of
exploration activities generally; the timing of the publication of
any technical reports; delays in permitting; possible claims
against the Company; labour disputes and other risks of the mining
industry, including impacts from the pandemic of the novel
coronavirus (COVID-19); delays in obtaining governmental approvals,
financing or in the completion of exploration as well as those
factors discussed in the Annual Information Form of the Company
dated March 25, 2022 in the section entitled "Risk Factors", under
Liberty Gold’s SEDAR profile at www.sedar.com.
Although Liberty Gold has attempted to identify
important factors that could cause actual actions, events, or
results to differ materially from those described in
forward-looking information, there may be other factors that cause
actions, events or results not to be as anticipated, estimated or
intended. There can be no assurance that such information will
prove to be accurate as actual results and future events could
differ materially from those anticipated in such statements.
Liberty Gold disclaims any intention or obligation to update or
revise any forward-looking information, whether as a result of new
information, future events or otherwise.
Cautionary Note for United States Investors
The information in this press release, including
any information incorporated by reference, and disclosure documents
of Liberty Gold that are filed with Canadian securities regulatory
authorities concerning mineral properties have been prepared in
accordance with the requirements of securities laws in effect in
Canada, which differ from the requirements of United States
securities laws.
Without limiting the foregoing, these documents
use the terms “measured resources”, “indicated resources”,
“inferred resources” and “probable mineral reserves”. Shareholders
in the United States are advised that, while such terms are defined
in and required by Canadian securities laws, the United States
Securities and Exchange Commission (the “SEC”) does not recognize
them. Under United States standards, mineralization may not be
classified as a reserve unless the determination has been made that
the mineralization could be economically and legally produced or
extracted at the time the reserve determination is made. United
States investors are cautioned not to assume that all or any part
of measured or indicated resources will ever be converted into
reserves. Further, inferred resources have a great amount of
uncertainty as to their existence and as to whether they can be
mined legally or economically. It cannot be assumed that all or any
part of the inferred resources will ever be upgraded to a higher
resource category. Under Canadian rules, estimates of inferred
mineral resources may not form the basis of feasibility,
pre-feasibility or other technical reports or studies, except in
rare cases. Therefore, United States investors are also cautioned
not to assume that all or any part of the inferred resources exist,
or that they can be mined legally or economically. Disclosure of
contained ounces is permitted disclosure under Canadian
regulations; however, the SEC normally only permits issuers to
report resources as in place tonnage and grade without reference to
unit measures. Accordingly, information concerning descriptions of
mineralization and resources contained in these documents may not
be comparable to information made public by United States companies
subject to the reporting and disclosure requirements of the
SEC.
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