Western Star Resources Inc. (CSE: WSR) (OTC: WSRIF) (FRA: 4K2) has released the results of a district-scale three-dimensional geophysical inversion across its Rowland and White Star tungsten properties in Elko County, Nevada. The modelling, completed by Warren Hughes, P.Geo., of East Coast Consulting, defines buried and partially exposed intrusive bodies and refines the fault network interpreted to channel mineralising fluids into the tungsten skarn system. This development is crucial as it expands the search space for high-grade tungsten mineralisation beyond previously mapped outcrops.
The inversion reveals that the company's highest-grade rock chip samples—4.02% WO3 at Rowland and 3.00% WO3 at White Star—correspond spatially with the contact between modelled intrusive rocks and carbonate host rocks, adjacent to interpreted structures. This correlation validates the tungsten skarn model, which requires an intrusion to drive the system, reactive carbonate rocks to host replacement, and structures to focus fluid flow. Blake Morgan, CEO and President of Western Star, stated, "This is the result we were hoping for. The inversion has modelled intrusive bodies spatially associated with areas where we sampled high grade tungsten values, and it has mapped the faults that we believe carried the fluid there. That is the tungsten skarn recipe, and we can now see it in three dimensions across the whole district."
The modelled intrusive framework extends well beyond the limits of the mapped outcrop, opening substantial new search space across both properties. Approximately 25 kilometres of structure has been interpreted in two dominant orientations: north-east–south-west and north-west–south-east. These structures are interpreted as the fluid conduits that fed the skarn and represent the first structural framework mapped at property scale in the district. The inversion also resolves geology beneath extensive Quaternary cover on the eastern flank, providing an exploration vector into ground that cannot be mapped or sampled at surface.
The significance of this announcement lies in its potential to guide future drilling and exploration. By integrating the inversion model with soil geochemistry results expected shortly, the company aims to define and rank drill targets. The updated geological and structural framework will be used to refine the geological model, with follow-up field mapping and sampling planned. This approach is grounded in the deposit model set out in the U.S. Geological Survey assessment of tungsten skarn resources across the Great Basin (Lederer and others, 2021), which shows that fault-channelled fluid is central to the development of high-grade skarn.
Western Star also announced that it has satisfied the first performance milestone under the option agreement for the Rowland tungsten project. The milestone required increasing the total project claim area by at least 30% and identifying at least three rock-chip samples grading above 2.0% WO3. The company exceeded both thresholds, expanding the claim package from approximately 84 hectares to 221 hectares—an increase of 165%—and reporting four samples above 2.0% WO3, including 4.02% and 2.69%. As a result, the company will issue 500,000 common shares to the vendors, valued at the 10-day volume-weighted average price preceding the verification date.
The implications of this news are significant for the industry and investors. Tungsten is a critical mineral used in various industrial applications, and the United States is heavily reliant on imports. By advancing domestic tungsten projects, Western Star is contributing to the security of critical mineral supply chains. The successful application of geophysical inversion to identify buried intrusive bodies and structures demonstrates the potential for modern exploration techniques to uncover new mineralised zones in mature districts. This could lead to the discovery of additional high-grade resources, enhancing the economic viability of the project.
The company's next steps include integrating soil geochemistry from the Phase 2 programme with the inversion model, structural framework, and geological mapping to build a single targeting model. Follow-up field mapping and sampling will refine the geological model, and resulting targets will be ranked to support the drill programme and permitting process now underway. The scientific and technical information in this release has been reviewed and approved by Jasper Mowatt, a Qualified Person as defined by National Instrument 43-101.
For more information on the technical details, including the QA/QC procedures and references, readers are encouraged to refer to the original release. Western Star Resources is a mineral exploration company focused on tungsten and critical minerals in the United States, with properties in Nevada and New Mexico.
