Diamond Drillhole 25LHDD071 Extended to 1,490m Revealing Key Mineralisation at Llahuin JV
FMR Resources has extended its second diamond drillhole at the Southern Porphyry target within the Llahuin Project JV in Chile, uncovering visual copper and molybdenite mineralisation linked to a key geophysical anomaly. This advancement sharpens the focus on the core of a significant porphyry system.
- Diamond drillhole 25LHDD071 extended to 1,490.65m at Target C
- Visual chalcopyrite and molybdenite mineralisation intersected within MT anomaly zone
- Extensive phyllic alteration and veining consistent with proximity to porphyry core
- Downhole geophysical logging completed and integrated with existing models
- Next drillhole targeting refined by combined geological and geophysical data
Drilling Progress at Southern Porphyry
FMR Resources Limited (ASX, FMR) has announced the completion of its second diamond drillhole, 25LHDD071, at Target C within the Southern Porphyry area of the Llahuin Project Joint Venture in Chile. The drillhole was extended beyond its planned depth of 1,400 metres to 1,490.65 metres after encountering significant visual mineralisation, including chalcopyrite and molybdenite-bearing veinlets. These sulphide mineralisations are associated with a primary magnetotelluric (MT) anomaly, a geophysical signature often indicative of porphyry copper systems.
Geological Insights and Mineralisation
Geological logging revealed extensive phyllic alteration and veining throughout the hole, consistent with the outer alteration zone near the porphyry core. The mineralised intervals, particularly between 1,335.7m and 1,437.65m, showed disseminated and vein-hosted pyrite, chalcopyrite, and molybdenite. Local portable XRF readings confirmed elevated copper values within these zones. The sulphide assemblages and alteration patterns suggest the drillhole has intersected a peripheral or halo zone of the mineralised porphyry system, indicating proximity to the main mineralised core yet to be drilled.
Integration of Geophysical Data
Downhole geophysical logging, including induced polarisation, electromagnetic conductivity, magnetics, and spectral gamma measurements, has been completed. These data are being integrated with existing geophysical models from Targets A and C to refine the interpretation of the porphyry system's geometry. This integrated approach aims to enhance targeting accuracy for upcoming drillholes, focusing on the core of the system.
Next Steps in the Phase I Drilling Program
FMR Resources is awaiting assay results for drillhole 25LHDD071, expected later this quarter, which will provide quantitative confirmation of the visual mineralisation observed. The company plans to finalise the design of the next drillhole based on a comprehensive integration of geological observations, petrography, geochemistry, and geophysical data. This iterative process is critical to vectoring towards the core of the Southern Porphyry system and advancing the exploration program.
Broader Geological Context
The Southern Porphyry target lies within a six-kilometre mineralised corridor at the Llahuin Project, known for multiple copper-gold-molybdenum porphyry centres. Surface mapping has identified alteration and epithermal veining typical of the upper levels of a porphyry system, with drilling confirming these features at depth. The current drilling campaign is progressively unveiling the telescoped nature of the system, with epithermal-style alteration overlying a deeper porphyry core.
Technical Assurance and Compliance
The exploration results and interpretations have been compiled and reviewed by qualified geoscientists, adhering to the JORC Code (2012 Edition) standards. Quality control measures, including duplicate sampling, standards, and blanks, have been rigorously applied to ensure data reliability. The company maintains transparency regarding the limitations of visual mineralisation estimates, emphasizing that assay results are necessary for definitive grade assessments.
Bottom Line?
FMR Resources' latest drillhole advances the hunt for the Southern Porphyry core, setting the stage for critical assay results and refined targeting.
Questions in the middle?
- What will the forthcoming assay results reveal about the grade and economic potential of the mineralisation?
- How will integrated geophysical and geological data influence the design and location of the next drillhole?
- What is the estimated scale and grade continuity of the porphyry system based on current and historical data?
