Zeb Nickel Project - 3-D Geophysical Modelling Defines Four Priority Drill Targets
Zeb Nickel Project - 3-D Geophysical
Modelling Defines Four Priority Drill Targets
Vancouver, British Columbia--(Newsfile Corp. - June 3, 2025) - ZEB Nickel Corp. (TSXV: ZBNI)
(OTCQB: ZBNIF) ("Zeb" or the "Company") is pleased to report the results of an independent 3-D
inversion of high-resolution aeromagnetic and Falcon™ airborne gravity data over the Zeb Nickel Project
("Zeb") in Limpopo Province, South Africa.
The work, completed by Geofocus (Pty) Ltd, refines and expands upon the conduit-style sulphide model,
identifying four discrete, high-density targets interpreted to represent potential accumulations of massive
nickel-copper-PGE sulphide mineralisation.
Key Highlights
Four Priority Targets: Magnetic-susceptibility and density shells delineate four coherent bodies
concealed beneath Transvaal dolomite or within the known Uitloop intrusion. Target 4 is the
densest feature detected to date.
High-Priority Targets 1 & 2: Large, coincident gravity-magnetic anomalies directly beneath parallel
lobes of the Uitloop chonolith, interpreted as feeder conduits where massive sulphides could pond.
Depth Extension Confirmed: Modelling indicates dense zones from ~100 m to >800 m below
surface, significantly deeper than historic drilling, underscoring the untested potential at depth.
Model Corroborates Conduit System: The new inversion reinforces the vertically stacked, feeder-
pipe architecture which forms the basis of the massive sulphide exploration model, with clear
similarities to the nickel-producing Uitkomst Complex.
These highlights confirm that multiple dense, magnetically susceptible bodies lie wholly within the
Company's licence and validate the ultramafic feeder-conduit geological model that underpins Zeb's
massive sulphide (Zone 3) exploration thesis. Importantly, the new modelling expands the search
footprint, both laterally and to depths well beyond historic drilling, and delivers a suite of clearly defined,
drill-ready targets. Together, these factors give the Company a compelling, capital-efficient path to
massive sulphide discovery, rapid resource definition and near-term value creation for shareholders.
Technical Summary
The Zeb licence is covered by a 50 m line-spaced aeromagnetic/radiometric survey and a 500 m line-
spaced Falcon airborne gravity-gradiometer survey. Geofocus completed 2-D litho-structural mapping,
and then ran unconstrained VOXI™ 3-D inversions using 12.5 m cells (magnetics) and 125 m cells
(gravity). The 3-D inversions are shown in Figure 1 below.
Figure 1: Result of 3-D VOXI inversion of both aeromagnetics (green) and GDD gravity (red).
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/7682/254275_d5a50da2e4a319ba_001full.jpg
What the 3-D model shows
The 3-D model is shown in Figure 1, and illustrates the geometry of a classic conduit hosted nickel
system. A magnetically defined ultramafic channel, shown in green, is punctuated by dense gravity highs
in red located exactly where ore forming processes predict massive nickel, copper and PGE sulphide
pools. These concepts are unpacked as follows:
1
.
Geometry of the conduit and cumulate package (green volumes)
The extensive sinuous green surface marks rock with high magnetic susceptibility, most likely
ferromagnesian cumulates that formed the ultramafic and mafic conduit.
Its ribbon-like shape and branching lobes possibly indicate a high flux feeder system in which
magma intruded repeatedly, eroding and inflating the channel walls.
Irregular scalloped cavities on the underside possibly represent basal embayments and
turbulence, the very traps where dense sulphide melt tends to collect.
2
.
Discrete dense bodies (red volumes)
The red volumes are gravity highs that represent material much denser than either the
surrounding country rock or the ultramafic cumulates.
Their blunt ended droplet geometry and position along the flanks and floor of the conduit
match the expected signature of immiscible sulphide liquid that pooled or was injected
downward during sustained magma flow.
Several red bodies are partly wrapped by green volumes, placing them at or just beneath the
base of the magnetic conduit; others lie farther down plunge in positions typical of footwall
embayments.
3
.
Spatial coincidence and offset
Where red and green volumes overlap, the signature could represent sulphide lenses
encased in magnetic cumulate. These intersections are prime drill targets because density
and magnetic contrast both support a sulphide interpretation.
Red bodies slightly offset from the green conduit may be sulphide accumulations that
migrated into deeper embayments or structural traps in the footwall dolomite; they are equally
compelling and will need angled drill holes to test.
4
.
Scale and depth
Lateral continuity of the green conduit across several kilometres confirms a long lived
plumbing system capable of repeated magma throughput, a key condition for concentrating
large amounts of sulphide.
The model extends beyond eight hundred metres vertically, and many red shells plunge
below five hundred metres, well deeper than historic drilling.
It is worth noting that the olivine-rich cumulates that make up much of the conduit can be significantly
modified by hydrothermal fluids or late magmatic fluids that convert olivine to serpentine and magnetite.
A serpentinised zone with abundant magnetite may produce coincident gravity and magnetic highs that
mimic a massive sulphide lens. Furthermore, magnetite formed during alteration may localise along
fractures or shear zones, creating narrow but intense magnetic anomalies that the inversion could smear
downward. That can give the impression of deeper feeder structures or dense pods that do not actually
exist. These factors would be mitigated by a time-domain EM survey, which would help discriminate
between magnetite-rich alteration and true massive sulphide, which shows sustained late-time
conductivity.
The resulting susceptibility and density shells define the following targets:
Target
Geological Setting
Geophysical Signature
Priority
1
Beneath twin Uitloop sills in dolomite
Strong coincident gravity &
magnetics
High
2
West of main intrusion, in dolomite
Large dense-magnetic body
High
3
3.3 km SSE of intrusion (partly within licence)
Gravity high with weak/no magnetics
Review
4
Basal zone of known intrusion
Densest modelled shell
High
Next Steps
1
.
3-D Integration
: Import VOXI shells into Leapfrog™ for constrained modelling with existing drill
data.
2
.
Electromagnetic Survey Option
: The Company is evaluating both ground and airborne EM
surveys to further delineate and rank the identified targets prior to drilling, and mitigate the risk of
drilling false anomalies.
3
.
Target Ranking & Drill Design
:
Prioritise Targets 1, 2 and 4 for first-pass deep diamond holes
(planned depth 600-1 000 m).
4
.
Community & ESG Engagement
: Initiate stakeholder consultations in the Mokopane region
ahead of field mobilisation.
Richard Montjoie, VP Exploration, commented:
"
The new 3-D inversion dramatically sharpens our view of the Zeb plumbing system. We now have
discrete, dense and magnetic bodies exactly where a conduit-fed nickel sulphide deposit should sit.
With four priority drill targets along with the possibility of adding EM data for even finer resolution,
means that we are positioned for the most exciting test of the project's potential to date."
About the Company
Zeb Nickel Corp is focused on exploring for and developing world-class mineral deposits, with a focus
on metals that are critical in the production of rechargeable batteries, such as nickel, graphite, lithium,
cobalt, manganese, copper and aluminum. The Company is currently focused on developing its flagship
Zeb Nickel Project, located in Limpopo, South Africa. The Zeb Nickel Project is a developing Class 1
nickel sulfide project strategically located in the Bushveld Complex in South Africa.
On behalf of the Board of Directors,
James Nieuwenhuys
Chief Executive Officer and Director
Zeb Nickel Corp.
Email:
Company Website:
www.zebnickel.com
Cautionary Note Regarding Forward-Looking Statements
This press release contains "forward-looking information" and "forward-looking statements" (collectively,
"forward-looking statements") within the meaning of applicable Canadian securities legislation. All
statements in this release, other than statements of historical fact, are forward-looking statements,
including but not limited to: interpretations of geophysical data, the potential extension and connectivity of
ultramafic bodies, the existence and extent of a feeder or plumbing system, the significance of magnetic
and gravity anomalies, statements regarding the potential for massive Ni-Cu-PGE sulphide
mineralisation, the planned re-processing and interpretation of geophysical data, the intention to
delineate drill targets in Zone 2 and Zone 3, the objective of declaring a higher-grade maiden NI 43-101
compliant mineral resource, and the broader development strategy of the Zeb Project.
Forward-looking statements are based on a number of assumptions believed by management to be
reasonable at the time such statements are made, including but not limited to: the accuracy of the
Company's interpretation of geophysical and geological data, the availability of financing on reasonable
terms, the ability to obtain necessary regulatory approvals in a timely manner, the results of planned
exploration activities, and assumptions regarding market conditions and commodity prices.
Forward-looking statements are subject to known and unknown risks, uncertainties and other factors that
may cause actual results, performance or achievements to differ materially from those expressed or
implied by such statements. These risks and uncertainties include, but are not limited to: fluctuations in
commodity prices, the outcome of current and future exploration and drilling programs, capital and
operating costs varying significantly from estimates, the ability to secure financing and maintain access
to capital markets, delays or inability to obtain necessary permits, approvals or licences, political and
regulatory risks, environmental risks, and other risks related to mineral exploration and development.
There can be no assurance that such statements will prove to be accurate, and actual results and future
events may differ materially from those anticipated. Readers are cautioned not to place undue reliance
on forward-looking statements. All forward-looking statements contained in this press release are made
as of the date hereof, and the Company undertakes no obligation to update publicly or revise any
forward-looking statements, whether as a result of new information, future events or otherwise, except as
required by applicable securities laws.
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