Ann: Devon Pit Gold Mine Update, page-19

STRUCTURAL GEOLOGY: THE KEY TO FORTITUDE NORTH'S POTENTIAL
https://discoveryalert.com.au/news/mat-matsa-resources-hits-...

The Fortitude North gold mineralogy is a classic example of structurally controlled gold occurrences typical of the Eastern Goldfields in Western Australia. The presence of stacked lodes - multiple parallel gold-bearing structures - is a feature common to many large gold deposits in the region.Understanding these "stacked lodes" is critical for investors: they potentially allow for more efficient mining as multiple gold zones can be accessed via the same mining infrastructure.
The dipping nature of the Fortitude North lodes suggests that mineralisation could extend significantly at depth and along strike, creating room for resource expansion through targeted drilling.Understanding stacked gold lodesStacked gold lodes refer to multiple parallel layers of gold mineralisation within a deposit. These structures are formed when mineralised fluids intrude into a series of parallel fractures or fault zones in the host rock. The result is several distinct zones of gold mineralisation that are vertically stacked.

The importance of stacked lodes for mining includes:
Extraction efficiency: multiple gold-bearing zones can be developed from the same underground workings, improving the economics of mining.Resource potential:
Each individual lode represents a self-contained body of mineralisation, so multiple lodes can significantly increase the total gold resource in a relatively limited area.
Mining flexibility: The presence of multiple lodes provides options for sequential mine development and potentially allows for optimised cash flow during production.
Exploration targeting: Understanding the geometry and spacing of stacked lodes allows for more precise drill targeting, reducing exploration costs.

In the Eastern Goldfields in Western Australia, many large deposits have stacked lode systems. Well-known examples are parts of the Golden Mile near Kalgoorlie and elements of the St Ives gold camp near Kambalda. These geological similarities have attracted investor interest following Kalgoorlie Gold Mining's discovery of high-grade lighthorse gold at the Pinjin project, which has similar structural characteristics.STAGED DRILLING PROGRAMME MAXIMISES DISCOVERY POTENTIAL
Matsa's current drilling programme is following a staged approach and is initially focused on:Testing the continuity of the high-grade second vein structureTargeting potential extensions of the already defined mineralisationTesting areas where the gold structure is expected to flatten to the southThis methodical exploration strategy allows the company to efficiently expand the known mineralisation while controlling costs. Successful demonstration of continuity between the high-grade intercepts would significantly enhance the economic potential of the project.Determining the economics of a project requires comprehensive mining feasibility studies that provide expert knowledge of the economics, especially for promising discoveries such as Fortitude North.

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