Litchfield Minerals Confirms Copper-Zinc Continuity and Expands Harts Range System

Oonagalabi Drilling Validates Copper-Zinc Mineralisation Amid Operational Hurdles

Litchfield Minerals (ASX:LMS) wrapped up its Phase 3 RC and diamond drilling program at Oonagalabi, delivering robust evidence of broad and continuous copper-zinc mineralisation within the Main Zone. Despite weather disruptions and logistical challenges, the company completed 11 RC holes totaling 1,772 metres and three diamond holes for 1,217.9 metres, confirming multiple higher-grade intervals with vertical and lateral continuity.

Notable intercepts include 68.26 metres at 0.62% copper and 1.44% zinc from 10 metres depth, and an extended 120-metre zone averaging 0.35% copper and 0.92% zinc from 52 metres. These results refine Litchfield’s geological and structural understanding, enhancing its targeting models for future drilling campaigns.

Unusual Nickel-Molybdenum Vein at Bomb Diggity Suggests Multi-Event Mineralisation

Among the drilling highlights, a hydrothermal molybdenite-nickel-bearing sulphide quartz vein was intersected at Bomb Diggity, an uncommon mineral assemblage that could indicate a previously unrecognised mineralising event in the region. Molybdenite samples have been submitted for Re-Os dating to better constrain the timing of this event, which may add complexity and opportunity to the Oonagalabi mineral system.

Magnetic anomalies at Bomb Diggity and the Oonagalabi Magnetic Finger remain unresolved, prompting plans to incorporate these into updated geophysical models to sharpen future exploration focus.

BHP Xplor Program Reframes Harts Range as a Belt-Scale Copper-Nickel System

Building on technical integration of magnetotelluric, seismic reflection, gravity, and isotopic data, the BHP Xplor-backed study has transformed the Harts Range corridor from isolated prospects into a cohesive copper-nickel mineral system. A key discovery is the deep C2 conductivity anomaly beneath the Blackadder-Baldrick Ni-Cu-PGE prospects, absent in broader regional datasets, suggesting additional hidden conductors may await detection.

This mineral systems framework links a fertile mantle source to structural pathways that have concentrated metals across the corridor, providing a strategic blueprint for Litchfield’s ongoing exploration. Supported by the Northern Territory Geological Survey, the company has contracted extensive magnetotelluric and gravity surveys along two 50-kilometre lines to identify further deep conductors.

Silver Valley Yields High-Grade Polymetallic Assays, IP Survey Planned

Rock chip sampling at Silver Valley returned standout assays including 378 grams per tonne silver, 44.9% lead, 5.04% copper, and 0.91 grams per tonne gold. These results confirm a well-preserved, structurally controlled mineralised system with potential extensions at depth and beneath cover.

To capitalize on this, Litchfield has contracted an induced polarisation survey scheduled for early July to delineate sulphide-bearing extensions and generate drill-ready targets, underscoring the company’s methodical approach to exploration.

Financial Position and Corporate Developments

At quarter-end, Litchfield held $4.6 million in cash, having spent $1.116 million on exploration predominantly focused on drilling and geophysics at Oonagalabi and Silver Valley. The company reported no production activities this quarter and maintained a tight capital structure with 65.5 million shares on issue.

In a bid to enhance investor engagement, Litchfield unveiled a refreshed corporate brand and a new investor hub featuring interactive geological models and streamlined access to company information, reflecting a commitment to transparency and shareholder communication.