FMR Resources has completed preliminary 3D inversion modelling of induced polarisation data at its La Martuca Prospect in Chile, refining key chargeability anomalies linked to known mineralised structures and advancing a first-pass drill plan for Q4 2026.
- Preliminary 3D IP inversion refines chargeability anomalies
- Significant anomaly beneath La Martuca mineralised strike extension
- First-pass drill plan targets continuity and multiple geophysical features
- Drill contract awarded with 2,000m program planned
- IP surveying continues at Esperanza while snow restricts La Martuca access
3D IP Modelling Defines High-Priority Drill Targets at La Martuca
FMR Resources Limited (ASX:FMR) has taken a significant step forward in its La Lorena Project in Chile by completing preliminary three-dimensional inversion modelling of induced polarisation (IP) data at the La Martuca Prospect. This modelling has refined the geometry of several chargeability features, notably one that aligns spatially with the known mineralised structures exposed in historic workings.
The latest IP line, L102, delineates a strong chargeability anomaly directly beneath the interpreted strike extension of the La Martuca mineralised structure. This anomaly strengthens eastwards at depth, merging with larger features identified on adjacent lines L103 and L104. The 3D inversion reveals that these responses comprise multiple discrete chargeability bodies rather than a single homogeneous source, providing a more nuanced target framework for drilling.
Drill Planning Targets Continuity and New Features
Building on the 3D model, FMR has completed first-pass drill planning designed to test the continuity of mineralised structures both proximal and distal to the historic artisanal workings. The proposed program includes drillholes aimed at several modelled chargeability and magnetic features, some outside the immediate known mineralisation trend, broadening the exploration scope.
The initial drill campaign is set for a minimum of 2,000 metres over 10 to 12 weeks, with statutory approvals already submitted and a contract awarded to Big Bear Drilling SpA. Mobilisation is scheduled within four weeks, indicating the company’s readiness to advance rapidly pending final permits.
Exploration Continues Amid Seasonal Challenges
While snow cover currently restricts access to La Martuca, preventing completion of the final IP survey line L101 and drill pad preparations, FMR is maintaining momentum by continuing IP surveying at the Esperanza Prospect within the La Lorena Project. This strategic sequencing allows the company to advance its target pipeline systematically while awaiting improved field conditions.
Once access is restored, the L101 data will be incorporated into the 3D inversion to further refine drill targets. Concurrently, earthworks to establish drill sites and access routes at La Martuca will proceed.
Geological Setting Supports Multiple Mineralisation Styles
The La Lorena Project lies within a geologically favourable Eocene volcanic and intrusive belt, intersected by a major Trans-Lithospheric Fault corridor that controls magma ascent and mineralisation. The project hosts multiple mineralisation styles, including porphyry copper-gold-molybdenite and epithermal gold-copper systems, exemplified by the Los Morados, La Martuca, and Esperanza prospects.
This structural and magmatic complexity underpins the multiple chargeability features identified in the IP data, enhancing the prospectivity of the targets for significant copper-gold mineralisation.
Bottom Line?
FMR Resources is poised to commence drilling at La Martuca following refined 3D IP modelling, but the true test lies in confirming mineral continuity and economic grades through upcoming assays.
Questions in the middle?
- Will the first-pass drilling confirm the continuity of the chargeability anomalies with economic mineralisation?
- How will the incorporation of the final IP line L101 data alter the current drill plan?
- What impact will seasonal access constraints have on the overall project timeline and exploration momentum?