Litchfield Minerals Confirms Multi-Plate Conductor at Oonagalabi, Ground EM Survey Set for November

Key Highlights:

• Downhole EM data reveals a stronger, more complex conductor system at VT1, now interpreted as multi-plate and open to the southwest.
• Ground EM survey to begin mid-November, designed for precision mapping and fast turnaround drilling.
• Anomalous palladium and nickel assays strengthen evidence for magmatic-hydrothermal mineralisation.
• Managing Director says VT1 is shaping up as a “company-making discovery-scale target.”
  
   

Litchfield Minerals Ltd (ASX: LMS) has announced encouraging new geophysical and geochemical results from its Oonagalabi Project in the Northern Territory, confirming that its VT1 Conductor is part of a much larger and more robust system than earlier models suggested.

Downhole electromagnetic (DHEM) data collected from hole OGRC0012 indicates conductor strength of 995 Siemens—significantly higher than the 700 Siemens estimated from airborne VTEM modelling. The data highlights multiple, stacked conductive plates within a 400-metre folded corridor, suggesting a highly mineralised system that remains open to the southwest.

While the drill hole narrowly missed the main conductive body, it still intersected mineralised sulphides, pointing to the presence of a fertile system nearby. The DHEM survey has since refined the geological model, positioning Litchfield for a high-confidence follow-up drilling campaign later this year.

Ground EM Program Set for Launch

To capitalise on these promising findings, Litchfield is launching a high-resolution Ground EM survey in mid-November. The survey is engineered for power and precision, incorporating tighter line spacing, higher station density, and fixed-loop configurations to deliver near-downhole resolution at surface level.

“Our geophysicists are confident we’re dealing with a very strong, multi-plate conductor system, one that’s considerably larger and more complex than what the airborne data initially suggested,” said Managing Director Matthew Pustahya. “The upcoming Ground EM program has been purpose-built to lock onto the heart of the conductor, ensuring we drill with maximum confidence.”

The Company plans to integrate EM data as soon as it’s acquired, enabling rapid interpretation and targeted drilling before the end of the year.

Geochemical Results Point to Magmatic-Hydrothermal System

Adding to the intrigue, recent resampling of surface rock chip sample RK0072—previously noted for gold, copper, silver, and tellurium content—has returned anomalous platinum group element (PGE) results, including 0.1 g/t palladium and 850 ppm nickel.

Although modest in grade, these values are considered highly anomalous for surface material and suggest a magmatic-hydrothermal component to the mineralisation at VT1. This aligns with the company’s broader geological model for the Oonagalabi corridor, which hosts both skarn and intrusion-related styles of mineralisation.

“Having multiple mineralisation styles co-located in one area is a very positive sign,” Pustahya added. “It suggests repeated fluid and heat pulses, multiple metal sources, and overlapping mineralisation events—all of which can upgrade grade and scale. Everything we’re seeing reinforces our belief that VT1 sits within a large, fertile mineralising system.”

Technical Interpretation and Scale Potential

According to the company’s interpretation, VT1 forms part of a tightly folded corridor with six to seven overlapping, high-conductance plates. The conductor geometry is more intense than initially thought, indicating structural complexity that often correlates with mineralised fluid pathways.

The DHEM’s limited detection radius—approximately 100 to 150 metres—implies that current signals may only represent the fringes of a much larger system. The planned ground EM survey, designed with higher resolution and broader coverage, is expected to provide clarity on the full extent of the target zone.

Once data processing and modelling are complete, Litchfield intends to commence the next round of targeted drilling, refining collar positions based on the new electromagnetic models.

Broader Geological Context

The Oonagalabi Project, located roughly 125 kilometres northeast of Alice Springs, sits within one of Geoscience Australia’s high-potential IOCG (iron oxide copper-gold) zones. The region has a history of mineral exploration dating back to the 1930s, but recent advances in geophysics and data integration have given explorers like Litchfield a clearer picture of its true potential.

Litchfield’s approach combines modern geophysical tools with systematic geochemistry to build a comprehensive model of mineralisation at depth. The company’s use of advanced DHEM and fixed-loop ground EM surveys underscores its data-driven strategy aimed at defining Tier-1 scale targets.

Outlook

With EM acquisition set to commence around 20 November, Litchfield expects to move quickly through data interpretation and into its next drilling phase. The company believes the VT1 target could emerge as one of the most technically compelling discoveries within the Oonagalabi system.

As Pustahya put it, “This is exactly the kind of target that can deliver company-making discovery scale.”