- Highlights include 7.10 meters at 3.05 g/t in hole 21LEV002,
4.20 meters at 4.75 g/t in hole 21LEV004, 2.77 meters at 18.86 g/t
in hole 21LEV005, and 3.24 meters at 6.91 g/t in hole
21LEV006.
- Results from holes 21LEV004, 21LEV002 and 21LEV006
demonstrate mineralized continuity in an apparent extension of
ore-shoots and their controlling structures in the historic
Leviathan Mine.
- Additional drilling planned to further explore this feature
along strike and to depth.
VANCOUVER, BC, March 9, 2022 /CNW/ - Leviathan Gold Ltd.
("Leviathan", the "Company") (TSXV: LVX)
(Germany: 0GP) reports that
further to its press releases of October
7 and 13 in respect to the launch of drilling at the
historic Leviathan Mine, results have been received for all eight
diamond holes completed during the initial phase of work at the
property. The most prominent intervals to be returned by this
program include 7.10 meters at 3.05 g/t from 232 meters in hole
21LEV002, 4.20 meters at 4.75 g/t from 241 meters in hole 21LEV004,
2.77 meters at 18.86 g/t from 335.13 meters in hole 21LEV005, and
3.24 meters at 6.91 g/t from 224.5 meters in hole 21LEV006.
All eight holes of the program were designed with the objective
of defining extensions to known mineralization in the historic
Leviathan Mine and importantly, where completed1, all
holes encountered mineralization on target, thereby corroborating
the recent modelling work of the Leviathan geological team.
In particular, the reported intervals in holes 21LEV002,
21LEV004 and 21LEV006 – which were collared approximately fifty
meters from one another at similar, parallel azimuths perpendicular
to the strike of historically mined ore-shoots - demonstrate
mineralized continuity between one another as well as with the
former ore-shoots themselves. This suggests the potential for
further mineralized shoots. Additional drilling will be required to
further explore these features along strike and to depth, and to
seek related and parallel mineralized structures. The reported
interval in hole 21LEV005 demonstrates the potential for unexplored
and undeveloped mineralization at depth within and beneath the
historic Leviathan Mine.
________________________
|
1 Holes 21LEV003 and 21LEV007 were
abandoned prior to completion.
|
Drilling was also designed to gain modern geological information
on the controls on mineralization at the historic Leviathan Mine.
On the basis of ongoing geological interpretation, mineralization
at the property is seen to take the form of quartz veining which
hosts visible gold, variable accessory galena and sphalerite, and
is constrained by south plunging antiformal fold structures
cross-cut by bounding and internal faults. More specifically
and very importantly, interaction between west-dipping laminated
quartz veins and said antiformal structures provides dilatancy
which allows the laminated quartz veining to "blow out" and host
significant gold mineralization. This understanding will assist
Leviathan in its further exploration of the property.
The Company is finalizing arrangements in regard to gaining land
access necessary to advance exploration of this target.
Leviathan Gold Chief Executive Officer, Luke Norman, remarked: "We are pleased that
this initial phase of drilling at the historic Leviathan Mine has
confirmed the presence of mineralization in continuity with what
appear to have been ore-shoots in old mine workings - suggesting
that these former workings hold greater unexplored and unmined
potential. Further drilling of these targets and an array of
related features will be planned once the necessary land access has
been established."
A total of 1891 meters in 8 holes have been drilled at the old
Leviathan Mine to date. Highlights of results to date are provided
in Table 1, collar information in Table 2, and a plan of drilling
in Figure 1. Full results of the drilling program have been posted
on the Company website at www.leviathangold.com.
Table 1: Significant intervals from drilling at the historic
Leviathan Mine
Drill
Hole
|
From
|
To
|
Interval
|
Au
|
(m)
|
(m)
|
(m)
|
(g/t)
|
21LEV002
|
232.05
|
239.15
|
7.10
|
3.06
|
and
|
242.40
|
243.51
|
1.11
|
56.40
|
21LEV004
|
241.00
|
245.20
|
4.20
|
4.75
|
21LEV005
|
335.13
|
337.90
|
2.77
|
18.86
|
21LEV006
|
224.50
|
227.74
|
3.24
|
6.91
|
and
|
231.10
|
232.19
|
1.09
|
34.09
|
Table 2: Collar data for drilling at the historic Leviathan
Mine
Drill
Hole
|
Easting
(MGA54)
|
Northing
(MGA54)
|
Elevation
|
Azimuth
|
Inclination
|
Length
|
(m)
|
(°)
|
(°)
|
(m)
|
21LEV001
|
741,904
|
5,898,701
|
219.88
|
256.08
|
-45.91
|
179.8
|
21LEV002
|
741,978
|
5,898,623
|
221.30
|
262.40
|
-50.36
|
286.1
|
21LEV003
|
742,128
|
5,898,407
|
225.35
|
255.76
|
-48.3
|
102.9
|
21LEV004
|
741,991
|
5,898,570
|
221.98
|
257.56
|
-54.25
|
273.9
|
21LEV005
|
742,128
|
5,898,407
|
225.35
|
257.30
|
-38.51
|
376.0
|
21LEV006
|
741,953
|
5,898,669
|
220.50
|
254.81
|
-55.08
|
260.4
|
21LEV007
|
742,113
|
5,898,469
|
224.30
|
254.39
|
-37.6
|
264.9
|
21LEV008
|
741,884
|
5,898,697
|
219.90
|
253.62
|
-44.98
|
150.7
|
Recorded historic production for the Leviathan Mine - itself an
amalgam of closely adjacent shafts and underground workings
understood to have been abandoned in 1905 - is 181,000 tonnes for
67,511 ounces of gold at a grade of 11.4 g/t Au2.
Compilation and review of historic mining records and plans
together with modern field work by Leviathan's geological team
suggests that gold mineralization at the historic Leviathan Mine is
open along strike and at depth - presenting clear drill targets
immediately beneath abandoned mine workings, including areas with
underground development drives that were never fully exploited.
These targets occur from depths as shallow as ~70 meters.
Mineralization at the Leviathan Mine is known to occur as quartz
veins, stockworks and spurs within a broad north-south trending
fault system, itself comprising numerous individual faults. Where
mineralized, these are locally termed "reefs". By 1862
approximately 90 such reefs were reportedly known in the area of
Leviathan Mine, with production records suggesting that such
occurrences produced "more than an ounce of gold per
tonne" 3.
Writing in 1913 - subsequent to the closure of the Leviathan
Mine - the Geological Survey of Victoria4 observed:
"From the surface to 240 feet
the Old Leviathan averaged for a long time 1 oz. per ton and the
ore was 10 feet to 20 feet wide. At no point lower than 300 feet
has this line been worked" and "The 960-ft level, the
next level at which the Old Leviathan Reef formation was cut, shows
a splendid quartz reef with encouraging prospects, and going
strongly underfoot south", and
"The New Reef in in the 960-ft
level warrants further exploiting and this should be done if ever
the mine is again worked".
Within the area contemplated by current drilling, repeated
parallel to sub-parallel reef targets extend over an area of at
least 130 meters laterally and in excess of 750 meters of strike.
Preliminary indications are that this fault system persists for
several kilometers to the north of the current target, and that
parallel systems appear to exist to both its east and its west.
These occurrences will be reported on in due course.
Hard rock gold mineralization in the area of Leviathan Mine
furthermore appears to have been a significant source for the rich
alluvial gold deposits that extend for kilometers downstream of the
Leviathan Mine in an area known as the Chinaman's Flat Lead - the
scene of a major gold rush in the 1850's. At this time some 30,000
diggers were reportedly engaged in mining on the Lead, with
reports5 suggesting an average yield for the Lead of
"four ounces gold to the load" (or approximately 163 grams
of gold per cubic meter) and that grades in many shafts (in the
alluvial material) ranged from 2 kilograms to 5 kilograms gold per
cubic meter6.
_________________________
|
2 Recorded historical production for
the New Leviathan, Old Leviathan and Great Leviathan Mines; GeoVic
(2020)
https://earthresources.vic.gov.au/geology-exploration/maps-reports-data
|
3 NIELSEN, K. I., 1989. Chinamans
Gold Prospect near Maryborough in Central Victoria, Preliminary
Geological Report.
|
4 HOWITT, A.M., 1913. The Maryborough
goldfield. Geological Survey of Victoria Memoir 11. Department of
Mines, Victoria, 76 pp.
|
5 BROUGH SMYTH, R., 1869. The
Goldfields and Mineral Districts of Victoria.
|
It is understood that historic operation of the Leviathan Mine
ceased due to the inability of the mining, metallurgical and
pumping techniques of the day to perform economically at the
required depths.
About Avoca and Timor
The Victorian goldfields are one of the world's major gold
provinces, with recorded historic production in excess of 2,500
tonnes - or over 80 million ounces – of gold since their discovery
in 18517. The Avoca and Timor projects comprise 223
square kilometers of exploration tenements within these goldfields,
approximately 180 kilometers northwest of the state capital of
Melbourne. The Projects are
well-served by modern infrastructure, are easily accessible via
paved roads, and fall less than 100 kilometers from the regional
cities of Bendigo and Ballarat, both long-established centers of
mining services and expertise.
The Projects are located within an area of the Victorian
goldfields, the golden triangle, that is home to large scale gold
deposits with long and very prominent histories of production such
as those at Ballarat, Bendigo and Castlemaine. More recently, major
discoveries have also been made at the Fosterville Gold Mine near
Bendigo (operated by Kirkland Lake
Gold, recently merged with Agnico Eagle Mines Ltd.), which
boasts reserves of 1.70 million ounces at an average grade of 23.1
g/t Au, including 1.16 million ounces at an average grade of 61.2
g/t Au8. Within the area being explored by Leviathan
Gold hundreds of small historical gold mines are known to have
existed within a 50 km radius of Avoca and Timor.
The Avoca and Timor projects were the subject of historical
mining between the 1850's and the early 1900's, during which era
operations targeted so-called alluvial and "deep lead" gold
occurrences – buried secondary auriferous river-bed deposits - as
well as primary vein-hosted mineralization developed via shaft and
underground stoping methods. Such operations reportedly produced
some 1.3 million ounces of gold in the Avoca and Timor project
areas alone, the majority of this arising from alluvial and "deep
lead" mining - a function of the richness of the alluvial
mineralization around Maryborough, so great that it eclipsed the
importance of reef mining. As such little capital was available for
deep hard rock development3. The mining, water removal
and ore processing methods of the day were rudimentary, such that
only isolated extraction of shallow, near-surface, visible,
high-grade mineralization was possible, resulting in only very
selective and discontinuous mining. Over fifty such gold
occurrences are known within the Projects, and despite this
prodigious endowment, no systematic exploration of the Projects has
occurred. With only limited exploration work having been recorded
since WW1, numerous targets to test, and mineralization potentially
open to depth at most of these, a rare opportunity exists for
Leviathan to pursue a consolidated approach in the exploration of
near-surface mineralization using modern drilling, geochemical and
geophysical techniques.
___________________________
|
6 FLETT, J., 1975. Maryborough,
Victoria, Goldfields History.
|
7 Earth Resources Victoria (2020).
https://earthresources.vic.gov.au/geology-exploration/minerals/metals/gold/gold-mining-in-victoria
|
8 Kirkland Lake Gold (2020).
https://www.kl.gold/our-business/resources-and-reserves/default.aspx
|
Historical records are not historical resource estimates, but
instead are official Government records of gold production from
individual mines. Historical production records do not carry a
comparable confidence level to a current Mineral Resource estimate
reported in accordance with CIM standards for resource estimation
and should not be treated as such. Leviathan does not treat
historical production records as indicators of a current mineral
resource or mineral reserve. The information relating to historical
gold mines has not been independently verified by the Qualified
Person and such information is not necessarily indicative of
mineralisation on the properties that it the subject of this Press
Release.
Future Work Programs
There are over thirty historical gold workings within the Avoca
project area[9], all of which require additional mapping, surface
sampling and drill testing to assess their potential and on which
the Company intends to report on an ongoing basis. The highest
priority targets include:
- Pyrenees Reefs: 16,199 tons mined for 16,602 ounces of gold to
a depth of 130 meters at an average recovered grade of 32 g/t Au,
worked from 1860 to 1912; mineralized shoots per historic
underground mine plans.
- Excelsior Reef: 13,200 tons mined for 9,260 ounces of gold to a
depth of 100 meters at an average recovered grade of 22 g/t Au,
worked from 1909 to 1915; mineralized shoots per historic
underground mine plans.
- Vale's Reefs: 1,444 tons mined for 1,388 ounces of gold to a
depth of 52 meters at an average recovered grade of 29.4 g/t Au,
worked from 1865 to 1883.
- Monte Christo Reefs: 2,795 tons mined for 937 ounces of gold to
a depth of 30 meters at an average recovered grade of 10.3 g/t Au,
worked from 1872 to 1877.
The Timor project lies immediately east of the Avoca project and
hosts numerous hardrock and alluvial gold deposits as evidenced by
the extent of historic workings, of which approximately twenty
hardrock workings can be considered to have been significant
producers. The highest priority targets include:
- Shaw's Reef: 16,881 tons mined for 12,623 ounces of gold to a
depth 130 meters at an average recovered grade of 22.9 g/t Au,
worked from 1883 to 1891. Along strike of this fault zone,
arsenopyrite and stibnite mineralization is recorded in association
with the gold mineralization indicating possible epizonal
Fosterville-style gold mineralization.
The Leviathan Group of Mines and Shaw's Reef both lie on
separate large regional north-south structures known to occur for
tens of kilometers associated with hardrock workings over their
length. Neither of these structures have witnessed significant
drilling. These two mineralized structures will be a near-term
focus for exploration within the Projects. Modern core orientation
techniques which help with understanding the structural controls on
mineralization, will be systematically applied during this
program.
______________________
|
9 State of Victoria Mining Surveyors
and Registrar's Quarterly Reports from 1860 to 1891 and Annual
Reports issued thereafter. All the production from these reefs
occurred within the Avoca licence.
|
Qualified Person and Data Verification
The technical content of this news release has been reviewed,
verified and approved by Keith
Whitehouse, MAusIMM (CP) PCert JORC, Exploration Manager of
Leviathan Gold (Australia) Pty.
Ltd., a qualified person as defined by NI 43-101.
Drilling at the historic Leviathan Mine in 2021 was carried
out by independent contractors using PQ and HQ size tooling.
Average core recovery for the program was 94%. Drill core was
transported from the drill site to Leviathan's core yard in Avoca
where it was logged and photographed using industry standard
practices. Within quartz rich zones and visually identified
mineralization, samples for assay were marked and prepared for
analysis. Sample intervals ranged from 0.15 to 1.25 meters in
length but were generally 0.5 – 1.0 meters with an average length
of 0.75 meters, producing samples with an average weight of 3
kilograms. Sampling over potentially mineralised intervals
used half core with the core being cut by Leviathan personnel using
an automated core saw. Over intervals which had obvious
mineralization as identified by the presence of visible gold and or
accessory minerals such as galena, sphalerite or arsenopyrite,
sampling was performed on whole core. Samples were delivered,
by Leviathan, to the facilities of On Site Laboratory Services
(Pty) Ltd. ("On Site") of Bendigo, Victoria. The
samples were weighed, crushed and auto split to a 3 kilogram
fraction, from which the rejects were retained. The spilt was then
pulverized using an industry-standard LM5 ring mill to 90% passing
75 µm and fire- assayed for Au using a 30 gram charge, Laboratory
Method PE01S. Samples which returned gold grades in excess of
5g/t Au were automatically resubmitted for Screen Fire Assay.
Leviathan routinely inserted gold geochemical standards, blanks,
field duplicate and coarse split duplicate samples into the drill
core sample stream as part of a documented Quality
Assurance/Quality Control (QAQC) process to monitor laboratory
performance. During the 2021 drilling program QAQC material
was inserted into sample batches at the following rates per primary
sample: coarse crush duplicates 1 in 15; basalt blanks 1 in 15;
certified reference material (CRM) 1 in 20.
CRMs and blanks submitted within mineralized intervals generally
passed the Company's QAQC controls. Coarse duplicate
sampling, in addition to field observation did however draw
attention to the presence of coarse gold in the mineralizing
system. In an effort to better control this variable, umpire
samples of half core from hole 21LEV002 were sent to ALS Global in
Adelaide, South Australia for analysis via prep method
PREP31 that included a coarse crush split, one split of which was
returned to Leviathan and the other subjected to Fire Assay method
Au-AA25. Samples treated in this manner showed a good correlation
with the primary samples sent to On Site Laboratory.
Consignments from hole 21LEV003 to On Site included the additional
requirement that a coarse crush split be made and returned to
Leviathan.
Upon receipt of complete assay results from both On Site and ALS
Global, the Leviathan geological team drew the conclusion from the
repeated presence of visible - i.e. nugget - gold in a number of
the core samples, that sampling and analytical protocols may to
that point have risked under-representing the tenor of gold,
particularly in the case of more nuggety material.
On this basis coarse crush splits were sent for analysis at
Gekko Systems (Pty) Ltd. of Ballarat by means of Leachwell bottle
roll, with a fire assay on the bottle roll tail. This
analytical method is understood to be in common use by other
Victorian operators – reportedly including Ballarat Gold Mines - in
the treatment of samples containing coarse gold. The
Leachwell method involves the agitated digestion of a coarsely
crushed 2 kilogram sample via Leachwell (a proprietary cyanide
mixture) in an agitated solution for 24 hours. The liquor
from this process is then decanted and is subject to a
determination of its gold content by way of Atomic Adsorption
Spectroscopy (AAS) to provide a measure of cyanide- extractable
gold. The residue from this process is then sampled and sent
for Fire Assay (the tail assay) to provide a measure of the gold
not extracted by cyanide. The sum of the two measures
provides a measure of the total gold in the sample. The
results of the bottle rolls indicated a higher tenor of gold
mineralisation in the intervals tested, and is considered to be due
in part to the larger sample size applied in this process, which
helps ensure that larger particles of gold present in the sample
are fully accounted for. All intersection results reported in
this news release are derived by means of bottle roll tests
combined with tail fire assays. As with the earlier fire
assays completed at On Site and ALS Global, standard, blank and
duplicate samples were included as a component of the analytical
program and performed as expected.
Sample grades were checked against recovery percentage for
potential bias; no discernible high- or low-grade bias was
observed.
On behalf of the Company,
Luke Norman, Chief Executive
Officer and Director
Neither the TSX Venture Exchange nor its Regulation Services
Provider (as that term is defined in the policies of the TSX
Venture Exchange) accepts responsibility for the adequacy or
accuracy of this release. No securities regulatory authority has
either approval or disapproved of the contents of this press
release.
This news release does not constitute an offer to sell or a
solicitation of an offer to buy any of the securities in
the United States. The securities
have not been and will not be registered under the United States
Securities Act of 1933, as amended (the "U.S. Securities
Act") or any state securities laws and may not be offered or
sold within the United States
unless registered under the U.S. Securities Act and applicable
state securities laws or an exemption from such registration is
available.
Forward-Looking Statements
Information set forth in this news release contains
forward-looking statements that are based on assumptions as of the
date of this news release, including with respect to geological
prospects of Leviathan's mineral projects, planned exploration
activities, success of exploration activities, the relevance of
historical information, the continuation of
mineralization, the relevance of comparable projects, the
timing of exploration activities, general business and economic
conditions; that applicable approvals are obtained; that qualified
workers, financing, permits, approvals, and equipment are obtained
in a timely manner; that market conditions continue; that
contractual counterparties perform their obligations as required;
and that Leviathan is able to locate sufficient financing for
favourable ongoing operations. These statements reflect
management's current estimates, beliefs, intentions and
expectations. They are not guarantees of future performance.
Leviathan cautions that all forward looking statements are
inherently uncertain and that actual performance may be affected by
many material factors, many of which are beyond Leviathan's
control. Such factors include, among other things: risks and
uncertainties relating to whether exploration activities will
result in commercially viable quantities of mineralized materials;
the possibility of changes to project parameters as plans continue
to be refined; the ability to execute planned exploration and
future drilling programs;COVID-19; the ability to obtain qualified
workers, financing, permits, approvals, and equipment in a timely
manner or at all and on reasonable terms; changes in the commodity
and securities markets; non-performance by contractual
counterparties; and general business and economic conditions,
Accordingly, actual and future events, conditions and results may
differ materially from the estimates, beliefs, intentions and
expectations expressed or implied in the forward-looking
information. Although Leviathan has attempted to identify important
risks and factors that could cause actual actions, events or
results to differ materially from those described in
forward-looking statements, there may be other factors and risks
that cause actions, events or results not to be as anticipated,
estimated or intended. Consequently, undue reliance should not be
placed on such forward-looking statements. In addition, all
forward-looking statements in this press release are given as of
the date hereof. Leviathan disclaims any intention or obligation to
update or revise any forward-looking statements, whether as a
result of new information, future events or otherwise, save and
except as may be required by applicable securities laws. The
forward-looking statements contained herein are expressly qualified
by this disclaimer.
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SOURCE Leviathan Gold Ltd