Tiernan Announces Results from Volcan Project Core Relogging Program, Advancing Geological Understanding and De-Risking Strategy
Tiernan Announces Results from Volcan
Project Core Relogging Program, Advancing
Geological Understanding and De-Risking
Strategy
Vancouver, British Columbia--(Newsfile Corp. - April 29, 2026) -
Tiernan Gold Corp. (TSXV: TNGD)
("Tiernan" or the "Company") announces the results of a comprehensive core relogging and geological
modelling program at its Dorado West deposit, part of the Company's Volcan Project located in the
Maricunga Gold Belt, Atacama Region, Chile.
The program, completed between December 2025 and February 2026 by Motherlode Consulting Inc.,
represents a significant step in refining the geological framework of the Dorado West deposit and
supports Tiernan's ongoing objective of advancing the project engineering and environmental permitting
milestones. The Dorado West deposit hosts approximately 94% of the 463 million tonnes of Measured
and Indicated Resources containing 9.2 million ounces of gold
[1]
.
Highlights of the Relogging Program
15,077 metres of core relogged across 27 drillholes
, representing approximately 30% of
historical diamond drilling
6,353 hyperspectral ("Terraspec") measurements collected
to enhance hydrothermal
alteration characterization
11,598 high-resolution core photographs acquired
to support digital geological analysis and
future potential machine-learning applications
Development of new lithological, structural, and alteration domains
to support a
geologically constrained mineral resource estimate ("MRE")
"The Dorado West relogging program represents a fundamental step forward in our understanding of
this deposit. By relogging nearly 30% of historical drilling and integrating hyperspectral analysis with
structural interpretation, we've confirmed that gold mineralization is primarily controlled by veining and
alteration intensity - not lithology - which significantly improves our geological model,"
said Fausto Di
Trapani, President and CEO,
"Banded stockwork zones averaging 0.80 g/t gold stand out as the
primary hosts of gold mineralization, and this new structural framework gives us a more robust basis
for the upcoming mineral resource estimate and prefeasibility study."
Key Geological Findings
The relogging program has resulted in a simplified and improved geological interpretation of the Dorado
West deposit:
Identification of four principal lithological domains: volcanic lava flows, dacitic porphyry, and
monomictic and polymictic breccias
Confirmation that breccia units with veining and stockwork are the primary host of gold
mineralization
Importantly, the analysis indicates that gold mineralization is not strongly controlled by lithology, but rather
by veining, alteration and structural controls.
Strong Correlation Between Gold and Alteration & Veining
Exploratory data analysis of relogged intervals highlights key controls on mineralization:
Silicification and white mica alteration show the strongest correlation to gold grades
Veining intensity is the primary indicator of gold mineralization, with banded stockwork zones
averaging up to 0.80 g/t Au, the highest among all identified domains
Banded veins and banded stockwork demonstrate strong associations with higher-grade gold
mineralization
New structural interpretation identified NE and NW trending corridors as principal controls, with
nine major structures acting as boundaries to high-grade gold zones (>1 g/t Au)
Enhanced Geological Modelling
The program enabled the construction of updated geological domains emphasizing spatial continuity
and structural coherence:
New lithological, stockwork, and alteration domains developed using 3m composites
Integration of hyperspectral data allowed for refined alteration domain modelling
Structural interpretation incorporated geophysical data, drilling, and surface mapping
These updated domains are expected to provide a more robust framework for future mineral resource
estimation and mine planning studies.
Strategic Implications
The relogging program significantly advances Tiernan's de-risking strategy by:
Improving confidence in the geological model
Providing a stronger basis for a geologically constrained MRE
Supporting future metallurgical testing and geometallurgical modelling
Establishing a high-quality dataset for advanced digital-driven analysis
Next Steps
Tiernan plans to:
Integrate new domains into the existing block model for grade-tonnage evaluation
Assess opportunities to incorporate legacy data to further enhance domain continuity
Evaluate digital-driven analysis to extract additional value from the newly acquired high-resolution
core photos
Continue advancing technical studies in support of the upcoming prefeasibility study
Qualified Person (QP) Statement
The scientific and technical data contained in this news release was prepared and reviewed by M.
Antonio Celis C., P.Geo under Engineers & Geoscientists of British Columbia (EGBC), an independent
qualified person to Tiernan Gold Corp., who is responsible for ensuring that the information provided in
this news release is accurate and who acts as a "qualified person" under National Instrument 43-101
Standards of Disclosure for Mineral Projects.
On behalf of Tiernan Gold Corp.
Fausto Di Trapani, CEO and Director
For further information visit
tiernangold.com
or contact:
Email:
Toll-free phone: +1 (888) 926-2591
About Tiernan Gold Corp.
Tiernan Gold Corp. is focused on the disciplined de-risking of the Volcan Gold Project strategically
located in the Atacama Region of Chile, on the Maricunga gold belt, a jurisdiction that has a long-
established history of mining with a number of operating mines, new mines under construction and major
projects being developed.
Cautionary Note Regarding Forward-Looking Information
This news release contains "forward-looking information" and "forward-looking statements" (together,
"forward-looking statements") within the meaning of applicable securities legislation. All statements,
other than statements of historical facts, are forward-looking statements. Often, but not always, forward-
looking statements can be identified by the use of words such as "plans", "planning", "expects", "is
expected", "continues", "budgets", "scheduled", "estimates", "forecasts", "predicts", "projects",
"potential", "intends", "targets", "aims", "seeks", "anticipates" or "believes" or variations (including
negative variations) of such words and phrases or may be identified by statements to the effect that
certain actions "may", "could", "should", "would", "might" or "will be taken", "occur" or "be achieved".
Forward-looking statements are subject to various known and unknown risks, future events, conditions,
uncertainties and other factors that may cause the actual results, performance or achievements to be
materially different from any future results, predictions, projections, forecasts, performance or
achievements expressed or implied by the forward-looking statements. Forward-looking statements in
this news release include, but are not limited to, statements with respect to the timing, scope, design and
results of the environmental impact study, engineering studies and permitting processes in connection
with advancement of the Project.
Forward-looking statements are based on several material expectations and assumptions made by the
Company's management, including but not limited to: the potential of the Project and the Company's
plans regarding the anticipated exploration and advancement of the Project; the ability of exploration
activities (including drilling) to accurately predict mineralization and the success of such exploration
activities and results; estimates of reserves and resources; anticipated costs (including future mining
and production rates) and estimates of capital and operating costs and other economics associated
with the Project; expectations concerning future metals prices and the demand, stability and market
outlook for metals, exchange rates, interest rates, tax laws and applicable royalty rates (if any); capital
efficiencies; the legislative and regulatory environment of Chile; expectations regarding the availability of
debt financing and the Company's ability to access capital on satisfactory terms; the Company's current
and future financial condition; anticipated timing, sufficiency and results of capital expenditures; the
potential for future metals production; and any other statements other than statements of historical facts.
Forward-looking statements are based on a number of assumptions and subject to a number of risks
and uncertainties, many of which are beyond the Company's control. Such risks and uncertainties
include, but are not limited to, the factors discussed under the heading "Risk Factors" in the Company's
filing statement dated December 8, 2025 filed under its issuer profile on SEDAR+ at
www.sedarplus.ca
.
There can be no assurance that such statements will prove to be accurate, as actual results and future
events could differ materially from those anticipated in such statements. Accordingly, readers should not
place undue reliance on forward-looking statements and forward-looking information. Readers are
cautioned that reliance on such information may not be appropriate for other purposes.
Forward-looking statements contained herein are made as of the date of this news release and the
Company disclaims any obligation to update or revise any forward-looking statements, whether as a
result of new information, future events or results or otherwise, except and as to the extent required by
applicable securities laws.
Neither the TSXV nor its Regulation Services Provider (as that term is defined in the policies of
the TSXV) accepts responsibility for the adequacy or accuracy of this release.
[1]
As reported in the amended and restated technical report titled "Volcan Project - NI 43-101 Technical Report and Preliminary Economic
Assessment - Tierra Amarilla, Atacama Region, Chile" under Tiernan Gold Corp. formerly Railtown Capital Corp.'s SEDAR+ profile. The Mineral
Resources disclosed in this Preliminary Economic Assessment are not Mineral Reserves and do not have demonstrated economic viability
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