Volta Confirms Presence of High-Grade Gallium, Cesium, Tantalum and Lithium Mineralization at the Recently Acquired ZigZag Project in Ontario, Canada
Volta Confirms Presence of High-Grade
Gallium, Cesium, Tantalum and Lithium
Mineralization at the Recently Acquired
ZigZag Project in Ontario, Canada
Channel sample assays up to 78.1ppm Ga, 1,970ppm Cs,
457ppm Ta and 2.98% Li2O at the Dempster East Pegmatite
Toronto, Ontario--(Newsfile Corp. - January 14, 2025) -
Volta Metals Ltd. (CSE: VLTA) (FSE: D0W)
("Volta"
or the
"Company")
is pleased to announce the results from the initial sampling of its recently
acquired, wholly owned, ZigZag Property (the "Property"), that is contiguous to its Falcon West Lithium
Project, located in the Thunder Bay Mining District of Northwest Ontario, Canada (
Figure 1
).
Figure 1. Dempster East Pegmatite and Falcon West Swarm mineralization trend in relation to
the Company's large land package.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/9598/237073_9c94effd9443fb3d_001full.jpg
A total of 21 samples (six representative characterization samples and 15 channel samples) were
collected immediately following the acquisition of the ZigZag Project in November 2024 (See
Company's news release dated November 22, 2024). The assays from these samples confirm the
presence of very high-grade Lithium, Tantalum, Cesium, Rubidium, and Gallium mineralization at the
Dempster East pegmatite located 7 km west of the Company's Falcon West pegmatite swarm (
Table
1
).
Table 1. Channel composite and grab sample lab results from Dempster East pegmatite on
Volta's ZigZag Property
Li
Li2O
Be
Cs
Rb
Nb
Ta
Ga
Sn
Nb/Ta
K/Rb
Unit Symbol
ppm
%
ppm
ppm
ppm
ppm
ppm
ppm
ppm
Detection Limit
15
3
0.1
0.4
2.4
0.2
0.2
0.5
C476301
Grab
5530
1.20
151
330
2910
60.7
78.8
63.1
86.9
0.77
9.6
C476302
Grab
6800
1.48
92
799
3980
32.8
239
50.5
58.8
0.14
9.0
C476303
Grab
10900
2.37
187
479
2650
43.2
110
57.7
106
0.39
11.7
C476304
Grab
15000
3.26
36
813
2340
30.8
216
67.4
208
0.14
10.3
C476305
Grab
6620
1.44
103
857
4540
41
361
43.9
197
0.11
8.8
C476306
Grab
2790
0.61
135
160
995
97.3
262
56.8
69.3
0.37
9.0
C476307
Channel
10700
2.33
148
573
2660
38.9
186
66.1
97.7
0.21
7.5
C476308
Channel
9560
2.08
143
468
2150
38.9
345
54.1
628
0.11
7.4
C476311
Channel
5580
1.21
231
404
3070
58.8
107
54.7
68.7
0.55
8.8
C476312
Channel
1020
0.22
210
287
1650
85
145
60.4
98.7
0.59
7.3
C476315
Channel
2920
0.63
271
802
4920
78.5
457
78.1
214
0.17
5.7
C476316
Channel
4470
0.97
216
844
3110
52.4
395
64
156
0.13
4.8
C476317
Channel
5480
1.19
59
1240
4610
43.5
421
57.6
152
0.10
4.8
C476318
Channel
13700
2.98
79
1130
3020
37.9
196
73.8
189
0.19
5.0
C476319
Channel
9140
1.99
188
746
1880
55
159
59.5
91.1
0.35
7.4
C476320
Channel
5150
1.12
112
206
3070
44.4
66.7
48.1
47.6
0.67
11.1
C476322
Channel
1130
0.25
66
1970
3550
30.5
153
32.5
74.3
0.20
5.4
MEAN
6852
1.49
143
712
3006
51
229
58
150
0.31
7.9
The Company's technical advisor, Dr. Fred Breaks, reviewed the data and commented, "
The initial bulk
rock chemical data reveal significant pegmatite evolution that infers a transition from albite-
spodumene-type into a complex-type pegmatite system. The elevated fractionation is highlighted by
maximum values of Ta (457 ppm), Cs (1970 ppm), Rb (4920 ppm), Ga (78.1 ppm), and Sn (628
ppm), coupled with low, very evolved Nb/Ta and K/Rb ratios. Tantalum, a valuable specialty metal,
ranges from 67 to 457 ppm. These data indicate their concentrations overlap the lower range of
variation for these metals at the North Aubry and South Aubry pegmatites (Seymour Deposit 10.3Mt
@ 1.03% Li
2
O), situated 20 km to the southwest (Tindle, Selway, and Breaks 2002), and signify the
potential presence of further evolved spodumene pegmatites proximal to the Dempster East
pegmatite
."
ZigZag Property Geological Setting
The ZigZag property is located within the Caribou Greenstone Belt, which trends east-northeast along
the top of Lake Nipigon. The Caribou Lake Greenstone Belt extends eastward from the larger Onamon-
Tashota Greenstone Belt, and lies along the northern margin of the Wabigoon Subprovince and
associated granitoid intrusions.
Structurally, the ZigZag property is bisected by two major deep-seated crustal structural trends that are
considered to control significant lithium pegmatite swarms at Falcon West and the Aubury Pegmatite
systems (Figure 2). The property is unexplored, and the Company considers the potential for the
discovery of Ta-rich Lithium pegmatites as good to excellent.
Figure 2. Regional Geology Map - ZigZag Property, NW Ontario
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/9598/237073_9c94effd9443fb3d_002full.jpg
Dempster East Pegmatite
The Dempster East pegmatite was discovered in 1956 and initially explored by Dempster Explorations
Ltd. The outcropping irregular pegmatite body has an inferred length of 56m. The dip of the pegmatite
and its size are currently unknown. However, the outcrop lies on the side of a small hill, indicating the
potential for a large size pegmatite body (
Photo 1
).
Six historic channel samples by Dempster Explorations Ltd. indicate an average grade of 1.88% Li
2
O.
The mineralogy comprises abundant potassic feldspar and fine-grained prismatic spodumene
associated with quartz, albite, muscovite, accessory blue apatite, and black tourmaline. There is no
record of any historical drilling.
The recent sampling by the Company indicates the presence of high grade rare elements such as
Gallium, Tantalum, Cesium and Rubidium, in addition to high-grade Lithium. The data indicates that the
Dempster East pegmatite is highly evolved, marking the
transition from an albite-spodumene type to a
complex type pegmatite system, as is the case with Green Technology Metals' North Aubry pegmatite
deposit to the west.
The Dempster East pegmatite has not been fully exposed on surface. The next steps of exploration will
include stripping, prospecting, mapping, structural and a geophysical study of the area.
ASSAY RESULTS
Lithium
The average Li
2
O content in samples devoid of host rock enclaves is 1.49 wt.% Li
2
O (range: 0.22 to
3.26 wt.%) which compares well with the historical average of 1.88 wt.% Li
2
O.
Bulk rock analyses of the rare metals and fractionation indicator ratios (K/Rb and Nb/Ta) are presented
in
Table 1
. A comparison of the Dempster East pegmatite with other lithium pegmatites in the Caribou
Lake greenstone belt and elsewhere is given in
Table 2
. Calculation of the mean rare metal content for
the Dempster East pegmatite was undertaken by filtering out samples with obvious host rock
contamination as evidenced by significantly higher Ca, Fe, and Mg contents, as marked by asterisks in
Table 1
.
The lithochemistry accrued from this early stage of exploration will greatly aid in continuing exploration of
the larger mineralized system. The presence of more evolved pegmatites supports the exploration model
that two pegmatites systems may coalesce in the larger land package, with significant discovery
potential to the east of the Dempster East pegmatite, towards the Companies Falcon West property as
well as to the southwest. The company plans to continue to explore these highly prospective areas and
generate additional targets for initial discovery drill testing.
Table 2. Comparative data for Li, Cs, Rb, Be, Ta, Nb, and Ga and ratios K/Rb and Nb/Ta for the
Dempster East pegmatite vs other lithium pegmatites from the Caribou Lake greenstone belt
and elsewhere
Lithium
(ppm)
Beryllium
(ppm)
Rubidium
(ppm)
Cesium
(ppm)
Gallium
(ppm)
Niobium
(ppm)
Tantalum
(ppm)
K/Rb
Nb/Ta
n
Source
Mean
Range
Mean
Range
Mean
Range
Mean
Range
Mean
Range
Mean
Range
Mean
Range
Mean
Range
Mean
Range
Dempster East spodumene
pegmatite
6852
1020-
15000
143
36-
271
3006
995-
4920
712
160-
1970
58
32.5-
78.1
51.2
30.8-
97.3
229
66.7-
457
7.9
4.8-
11.7
0.31
0.10-
0.77
16
Swole Lake complex-type,
lepidolite-subtype pegmatite
615
272
843
41
41
77
327
21.1
0.23
1
1
North Aubry complex-type,
spodumene-subtype Pegmatite
2296
12-
15967
294
4-169
1894
34-
10601
323
8-
3284
75
37-
247
396
9-
9339
1197
47-
10263
12.7
6-47.1
0.53
0.05-
1.37
26
1
South Aubry complex-type,
spodumene-subtype Pegmatite
2650
32-
10140
186
13-
411
1400
39-
4310
268
19-
916
42
31-46
36.2
24-72
97.6
7.4-
300
13.2
12.8-
13.3
0.63
0.12-
1.44
5
1
AM albite-spodumene-type
pegmatite, Falcon West (Volta
Metals channel data)
5818
1560-
7820
147
120-
190
2576
2140-
3220
210
118-
267
58
47.9-
68.1
64.1
53-
73.8
65.6
29.7-
79.4
8
7.7-
9.0
1.3
0.4-
2.0
7
Tanco complex-type
pegmatite,Manitoba (average)
3534
221
5300
4526
79
90
649
5.5
0.14
2
n= number of samples
1. Tindle, A.G., Selway, J.B. and Breaks, F.W. 2006.Electron Microprobe and Bulk Rock and Mineral Compositions of Barren and Fertile
Peraluminous Granitic Rocks and Rare-Element Pegmatites, North-Central and Northeastern Superior Province of Ontario, Miscellaneous Release
Data 210.
2. Stilling, A.1997. Bulk composition of the Tanco pegmatite at Bernic Lake, Manitoba, Canada.Unpublished MSc thesis, University of Manitoba, 76p.
Tantalum
Tantalum is significantly enriched in the Dempster East pegmatite. It has a mean value of 229 ppm and
an overall range of 66.7 to 457 ppm, with 70% of analyses exceeding 100 ppm
(Table 1
). The Nb/Ta
ratio has a mean upper continental crust average of 16 and reveals strong fractionation as ratios plunge
to 0.10 - 0.67 (
Table 2
), which typically occurs in complex-type pegmatite systems such as the Tanco
pegmatite deposit at Bernic Lake, Manitoba (
Table 2
).
As a reference, the average Ta at Greenbushes mine, Western Australia is 127ppm.
Cesium
The cesium contents of the Dempster East pegmatite areconsiderably elevated, with a mean of 712
ppm and a range of 160 to 1,970 ppm that infer a transition to a complex-type pegmatite system. Similar
cesium values are documented from the adjacent North and South Aubry pegmatite deposits (323 and
268 ppm, respectively).
Furthermore, the mean cesium at Dempster East is considerably higher than the AM lithium pegmatite
(210 ppm), 7km to the northeast that forms part of the Company's Falcon Lake pegmatite group, and
supports an east-to-southwest direction of increasing fractionation for the ZigZag claim block. This
supports previous data collected on Falcon West, that suggests the entire 7km unexplored structural
fairway has good to excellent potential to host increasingly evolved pegmatites, containing multi-element
rare elements.
Rubidium
Rubidium is also enriched with a mean value of 3,006 ppm (ranging from 995 to 4,920 ppm) and broadly
shows a positive correlation with cesium. A significant number of Rb anomalies (61%) exceed the 2,000
ppm level. The K/Rb ratio, a useful indicator of magmatic fractionation, has a mean of 8.3 in a restricted
range of 4.1 to 11.7 that overlaps the average for the Tanco pegmatite deposit at 5.5 and the data
population of the North Aubry pegmatite (
Table 2
).
Gallium
Gallium is enriched in all samples with a mean of 58 ppm and a range of 32.5 to 78.1 ppm.
Gallium, is a critical component in semiconductors, telecommunications, renewable energy sectors and
may also be considered as a possible heat exchange medium in nuclear reactors. Canada and the U.S.
rely on gallium for telecommunications, defense, and green energy. Gallium is also used in
semiconductors, AI circuitry, radar and microchips.
Photo 1. Channel sampling along the Dempster East Pegmatite on the ZigZag Property
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/9598/237073_photo1.jpg
Geopolitical Considerations:
On December 3, 2024, China announced an immediate ban on the export of multiple critical metals,
including gallium, exacerbating supply chain challenges. These restrictions are part of a broader trade
conflict over critical technologies. Countries like the U.S., Canada, and numerous European countries
are ramping up efforts to develop domestic gallium and rare earth sources and processing capabilities
to reduce reliance on China.
China currently accounts for 98% of worldwide primary low-purity gallium production.
Despite gallium's importance to today's and future technologies, the United States is reliant on imports
for 100% of its supply of this avant-garde tech metal. Most of these supplies, come from China. Canada
currently has partnerships for critical minerals with the U.K., U.S., Australia, and Japan
(
https://www.canada.ca/en/campaign/critical-minerals-in-canada/our-critical-minerals-strategic-
partnerships.html
).
For reference, the Codero Deposit in Nevada is one of the largest unmined primary gallium deposits in
North America, and contains 15M tonnes at 47.7ppm, with a cut off grade at 30ppm.
Tantalum
In Canada, the Sinomine owned Tanco Mine in Manitoba, has the largest tantalum reserves in Canada,
estimated reserves of 2.1M tonnes of ore grading 0.22% tantalum. The mine also has 7.3M tonnes of
ore grading 2.76% lithium. Tantalum has not been mined in the U.S. since 1959.
The most important uses for tantalum are in electrolytic capacitors and corrosion-resistant chemical
equipment. Tantalum capacitors have the highest capacitance per unit volume of any capacitors and are
used extensively in miniaturized electrical circuitry.
Rubidium
Today most rubidium is obtained as a byproduct of lithium. Rubidium has a critical role in emerging
technologies and its limited supply make it a valuable strategic resou
rce
in quantum research. Rubidium
is also used in fiber optics night-vision technology and telecommunications.
Upcoming Events
The Company will be attending and exhibiting on site at the 2025 Prospectors & Developers
Association of Canada event ("PDAC 2025") in Toronto, ON. Volta is exhibiting in the Investors
Exchange from March 2-5, 2025 at booth number 2728.
Additionally, Volta is pleased to announce that the Company has been selected to present at the Investor
Forum as part of the Electric Materials at PDAC 2025. More details for the presentations can be found
at this link:
https://pdac.ca/convention-2025/programming-2025/corporate-presentation-forum-for-
investors-2025/electric-materials-2-2025
.
For more information on PDAC 2025, please
click here.
Qualified Person
The technical content of this news release has been reviewed and approved by Andrew Tims, P.Geo.,
who is an independent Qualified Person (QP) as defined in National Instrument 43-101, Standards of
Disclosure for Mineral Projects. The QP and the Company have not completed sufficient work to verify
the historical information on the Properties, particularly regarding historical exploration, neighbouring
companies, and government geological work.
For more information about the Company, view Volta's website at
www.voltametals.ca
.
ABOUT VOLTA METALS LTD.
Volta Metals Ltd. (CSE: VLTA)
is a mineral exploration company focused on lithium, cesium, and
tantalum and is based in Toronto, Ontario. It is currently exploring a critical minerals portfolio of lithium,
cesium, tantalum and gallium projects in Northwestern Ontario, considered one of the most prolific
emerging hard-rock lithium districts in the world. To find out more about Volta and its flagship Falcon
West/ZigZag Project, please visit
www.voltametals.ca
.
ON BEHALF OF THE BOARD
For further information, contact:
Kerem Usenmez, President & CEO
Tel: 416.919.9060
Email: [email protected]
Website:
www.voltametals.ca
Neither the CSE nor the Investment Industry Regulatory Organization of Canada accepts responsibility
for the adequacy or accuracy of this release.
This news release contains forward-looking statements relating to product development, plans,
strategies, and other statements that are not historical facts. Forward-looking statements are often
identified by terms such as "will," "may," "should," "anticipate," "expects," and similar expressions. All
statements other than statements of historical fact included in this news release are forward-looking
statements that involve risks and uncertainties. Forward-looking information in this news release
includes but is not limited to, the anticipated use of the net proceeds from the Offerings and the receipt of
all necessary approvals for the Offering. There can be no assurance that such statements will prove to be
accurate, and actual results and future events could differ materially from those anticipated in such
statements. Important factors that could cause actual results to differ materially from the Company's
expectations include the risks detailed from time to time in the filings made by the Company with
securities regulators; the fact that Volta's interests in its mineral properties are options only and there are
no guarantee that such interest if earned, will be certain; the future prices and demand for lithium; and
delays or the inability of the Company to obtain any necessary approvals, permits and authorizations
required to carry out its business plans. The reader is cautioned that assumptions used in the
preparation of any forward-looking statements may prove to be incorrect. Events or circumstances may
cause actual results to differ materially from those predicted as a result of numerous known and unknown
risks, uncertainties, and other factors, many of which are beyond the control of the Company. The reader
is cautioned not to place undue reliance on any forward-looking statements. Such information, although
considered reasonable by management at the time of preparation, may prove to be incorrect and actual
results may differ materially from those anticipated. Forward-looking statements contained in this news
release are expressly qualified by this cautionary statement. The forward-looking statements contained
in this news release are made as of the date of this news release, and the Company disclaims any
intention or obligation to update or revise any forward-looking statements, whether as a result of new
information, future events, or otherwise, other than as required by law.
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