Diamond Drillhole Extended to 1,490m Reveals Key Mineralisation at Target C
FMR Resources has extended its latest diamond drillhole at the Llahuin Project’s Target C, intersecting visual copper and molybdenum mineralisation linked to a key geophysical anomaly. This marks a promising step towards pinpointing the core of a significant porphyry copper-gold-molybdenum system.
- Diamond drillhole 25LHDD071 extended to 1,490.65m at Target C
- Visual chalcopyrite and molybdenite mineralisation intersected near MT anomaly
- Extensive phyllic alteration and veining consistent with proximity to porphyry core
- Integration of geological and geophysical data ongoing to refine next drill target
- Assay results pending, with next drillhole planned based on integrated findings
Exploration Progress at Llahuin’s Southern Porphyry
FMR Resources Limited, in joint venture with Southern Hemisphere Mining, has reported encouraging visual mineralisation from its recent diamond drilling at the Llahuin Project in Chile. The latest drillhole, 25LHDD071 at Target C within the Southern Porphyry target, was extended beyond its planned depth to 1,490.65 metres after encountering notable copper and molybdenum-bearing veinlets.
This mineralisation is closely associated with a primary magnetotelluric (MT) anomaly, a geophysical signature often indicative of porphyry copper systems. Geological logging revealed extensive phyllic alteration and veining throughout the hole, consistent with the outer alteration zones typically found near the core of large magmatic-hydrothermal systems.
Geological and Geophysical Insights
The drillhole intersected multiple sulphide-bearing veinlets, including chalcopyrite and molybdenite, within structurally controlled zones between approximately 1,335.7m and 1,437.65m depth. These visual observations suggest proximity to the mineralised core, although the core itself has yet to be intersected. Downhole geophysical logging; covering induced polarisation, electromagnetic conductivity, magnetics, and spectral gamma; has been completed and is being integrated with existing models to refine the geological understanding.
Managing Director Oliver Kiddie emphasised the significance of these findings, noting that the drillhole has added critical geological, structural, and geophysical data that sharpen the targeting for the next phase of drilling. The integration of data from Targets A and C is expected to guide the upcoming drillhole, aiming to intersect the main mineralised porphyry core.
Context Within the Llahuin Project
The Southern Porphyry target lies within a six-kilometre mineralised corridor at Llahuin, which hosts multiple copper-gold-molybdenum porphyry centres. Surface mapping and historic drilling have identified alteration and mineralisation patterns consistent with a telescoped system; where epithermal-style veining and alteration overlay a deeper porphyry core. The recent drilling supports this model, with visual mineralisation and alteration zones aligning with geophysical anomalies.
JORC-compliant resource estimates for the Llahuin Project remain unchanged, with measured and indicated resources totaling over 170 million tonnes at approximately 0.39% copper equivalent. Metallurgical testwork continues to optimise recoveries, with preliminary flotation results showing promising copper and gold recoveries.
Next Steps and Market Implications
Assay results from drillhole 25LHDD071 are expected later this quarter and will provide quantitative confirmation of the visual mineralisation. Meanwhile, the company is finalising the design for the third drillhole in the Phase I program, leveraging integrated geological, geochemical, and geophysical data. This iterative approach aims to progressively close in on the core of the porphyry system, potentially unlocking significant resource expansion.
FMR Resources’ methodical exploration at Llahuin exemplifies the patient, data-driven approach required to delineate large porphyry deposits. The ongoing collaboration with Southern Hemisphere Mining and the use of advanced geophysical techniques position the project well for future discoveries in one of the world’s premier copper provinces.
Bottom Line?
As assay data arrives and geophysical models sharpen, FMR’s next drillhole could be the key to unlocking Llahuin’s porphyry core.
Questions in the middle?
- Will assay results confirm the visual copper and molybdenum mineralisation observed?
- How will integrated geophysical data refine the targeting for the next drillhole?
- What implications could these findings have for expanding the current JORC resource base?