Hammer Metals Regains Full Control of Mount Isa Copper-Gold Projects as JV Partner Exits
Hammer Metals (ASX: HMX) has unveiled multiple high-potential exploration targets across its North Queensland project areas, headlined by a standout electromagnetic conductor and promising soil sampling results that suggest analogies to high-grade gold deposits in the region.
A standout electromagnetic discovery has emerged at Hammer’s Revenue prospect area with the identification of the new “Lex” target. The Fixed Loop EM (FLEM) survey has delineated an exceptionally strong 2,000 Siemens conductor coincident with a discrete magnetic feature.
This compelling geophysical target is particularly intriguing as it’s located under shallow cover (>9m) with limited outcrop. Despite the sparse surface expression, rock chip samples collected from a small historical working directly above the conductor returned values of up to 3.1% copper.
The conductor consists of two modelled plates – a high conductance plate (2,075 Siemens) and a lower conductance body (50 Siemens), potentially indicating a zoned sulphide system progressing from pyrrhotite to chalcopyrite.
Hammer has secured a drill rig to test this priority target in April, alongside the Tourist Zone South target.
Exciting results from Hammer’s systematic soil sampling program along the Pilgrim Fault corridor, which has identified several significant anomalies:
The discovery is particularly significant as this represents the first meaningful exploration work conducted on this tenure despite its proximity to the highly mineralised Tick Hill and Kalman projects.
Systematic sampling at the Lady Jenny project has delivered impressive results, with one sample returning 20.5% copper and 0.93g/t gold. Additional samples along strike to the southwest returned up to 1.51% copper, confirming continuity of mineralisation beyond the existing open pit.
The Lady Jenny target is currently being evaluated through a systematic exploration program, with sampling results being integrated with recent RC drilling data.
Electromagnetic (EM) surveys are a vital geophysical technique used in mineral exploration to detect conductive bodies beneath the Earth’s surface. The technique works by inducing electromagnetic fields in the ground and measuring the secondary fields generated by conductive materials.
In the case of Hammer’s Lex target, the company utilised Fixed Loop EM (FLEM), where a transmitter loop remains stationary while measurements are taken at different positions. The conductivity measurement of 2,000 Siemens identified at Lex is considered exceptionally strong and often indicates the presence of massive sulphide mineralisation.
Conductivity in this context is measured in Siemens, with higher values typically associated with better electrical conductors such as massive sulphides containing pyrrhotite, chalcopyrite, or other metal-bearing minerals. The variation in conductance between the two plates at Lex (2,075 Siemens vs 50 Siemens) potentially indicates a zoned system with different sulphide compositions.
EM surveys are particularly valuable in areas with limited surface exposure, as they can detect mineralisation beneath cover – precisely the situation at the Lex target where outcrop is sparse and surface cover exceeds 9 metres.
Hammer Metals’ exploration strategy continues to deliver results through methodical data collection across its extensive 2,800km² landholding in the Mount Isa district. The company has also added new ground with the Fort William application near Boulia, covering anomalous basement magnetic responses interpreted as representing the Mary Kathleen Fold Belt beneath younger basin sediments.
Daniel Thomas, Hammer’s Managing Director, noted: “Hammer’s team had a busy 2024 collecting and collating significant datasets that have since yielded a number of high-quality targets to pursue in the coming year. The region remains lightly explored with our recent soil sampling program across the Pilgrim Fault representing the first meaningful work to be conducted on this tenure despite its proximity to highly mineralised projects.”
With drilling at the Bullrush JV continuing through March and results expected by April-May, Hammer has set a busy exploration schedule for Q2:
Hammer Metals presents a compelling investment case for several reasons:
With approximately $2.7 million in cash as of December 31, 2024, Hammer is well-positioned to advance its exploration programs across multiple fronts in this highly prospective region. HMX’s high-potential exploration targets continue to demonstrate the company’s ability to identify meaningful mineralisation in one of Australia’s premier mining districts.
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