FMR Resources Confirms Broad Mineralised Porphyry System at Llahuin with Phase II Drilling Planned
FMR Resources has received final assays from drillhole 26LHDD073 at its Southern Porphyry target, confirming extensive copper-gold-molybdenum mineralisation and supporting the interpretation of a large porphyry system. Ongoing integration of geological and geophysical data aims to refine targets ahead of Phase II drilling.
- Final assays confirm broad copper-gold-molybdenum mineralisation
- Drillhole 26LHDD073 intersected multiple porphyry intrusive phases
- Significant intervals include 24m at 0.14% CuEq and 4m at 0.78% CuEq
- Integration of petrography, geochemistry, and geophysics ongoing
- Phase II drilling targeting higher-grade porphyry core planned for Q4 2026
Final Assays Confirm Extensive Porphyry Footprint
FMR Resources Limited (ASX:FMR) has unveiled final assay results from diamond drillhole 26LHDD073 at the Southern Porphyry target within its Llahuin Project Joint Venture in Chile. The assays confirm a broad copper-gold-molybdenum anomalism associated with multiple porphyry intrusive phases and stockwork breccias, validating geological observations of an extensive mineralised system.
Key intersections include 24 metres grading 0.14% copper equivalent (CuEq) from 156 metres and a higher-grade 4 metres at 0.78% CuEq from 582 metres. These results reinforce the interpretation that the drilling has intercepted the margins rather than the high-grade core of a large porphyry intrusive corridor.
Geological and Geochemical Integration to Refine Targets
Drillhole 26LHDD073 was strategically designed to test structural, geological, and geochemical vectors derived from previous holes 25LHDD070, 25LHDD071, and 26LHDD072. The hole intersected multiple mineralised intrusive phases, pervasive hydrothermal alteration, and broad zones of quartz-sulphide stockwork veining with visible chalcopyrite and molybdenite.
FMR is actively integrating assays with petrographic studies, multi-element geochemistry, and geophysical datasets, including downhole and surface induced polarisation (IP) and magnetotelluric (MT) models. This multidisciplinary approach aims to better vector toward the higher-temperature copper-molybdenum core of the system, which remains untested by current drilling.
Ongoing Petrophysical and Structural Studies
Complementing geochemical work, petrophysical testwork on key lithologies is underway to measure density, magnetic susceptibility, resistivity, and chargeability. These data will refine geophysical inversion models and improve drill targeting precision for the next phase.
Structural measurements from Target L indicate increasing vein complexity compared to earlier drillholes, interpreted as proximity to the porphyry fluid source. The Southern Porphyry target lies within a six-kilometre mineralised corridor hosting multiple copper-gold-molybdenum porphyry centers, with field mapping revealing argillic alteration, silicification, and epithermal quartz veining typical of upper porphyry system levels.
Phase II Drilling Planned for Late 2026
FMR plans to finalise Phase II drill targeting later this year, focusing on the interpreted porphyry core identified through integrated geological, geochemical, and geophysical modelling. This next stage aims to test for higher-grade mineralisation at depth and along strike, building on the extensive footprint confirmed by Phase I drilling.
Managing Director Oliver Kiddie emphasised that the assays "validate the geological observations from drilling, confirming a broad mineralised porphyry system containing copper, molybdenum, and gold anomalism associated with intrusive phases and stockwork breccia." He added that ongoing integration efforts are refining vectors toward the higher-grade core ahead of the next drill phase.
While the true widths of mineralised intervals are yet to be fully established, the consistent presence of copper, molybdenum, and gold across multiple drillholes supports the potential scale of the system. The company continues detailed petrographic and geochemical analyses to reconstruct the porphyry system geometry and guide exploration.
Bottom Line?
FMR’s confirmation of a broad mineralised porphyry system at Llahuin sets the stage for targeted Phase II drilling, but the higher-grade core remains to be proven.
Questions in the middle?
- Will Phase II drilling confirm the presence of a commercially viable higher-grade porphyry core?
- How will integrated geophysical and geochemical models refine drill targeting in this complex system?
- What impact could evolving copper, gold, and molybdenum prices have on project economics and development timing?