Resource Minerals International Ltd (ASX:RMI) has completed a detailed ground magnetic survey at its Wadi Salamah Project in Saudi Arabia, revealing significant magnetic anomalies and high-grade surface mineralisation that underpin plans for a maiden 5,000-metre drilling program.
- 1,010 line-km high-resolution magnetic survey completed over 100 km² at Wadi Salamah
- Two large-scale magnetic anomalies (H1 and H2) identified, indicative of porphyry copper-molybdenum potential
- Six major regional faults mapped, linked to the Najd Fault System corridor
- Surface sampling confirms high-grade gold (up to 10.66 g/t) and silver (up to 13.95 g/t) mineralisation
- Three priority target zones (Z1, Z2, Z3) defined for upcoming 5,000m diamond and RC drilling program
Extensive Magnetic Survey Uncovers Key Targets
Resource Minerals International Ltd (ASX:RMI) has announced the results of a comprehensive 1,010 line-kilometre high-resolution ground magnetic survey at its Wadi Salamah Project, located in the central Arabian Shield of Saudi Arabia. The survey, covering approximately 100.83 km², represents the first systematic geophysical work at the project and was conducted in collaboration with CNNC Geological Science and Technology Co. Ltd.
The survey identified two prominent, deep-seated magnetic anomalies named H1 and H2, spanning roughly 16 kilometres in the northern sector of the project area. These anomalies are interpreted as large intrusive bodies prospective for porphyry copper-molybdenum mineralisation, a style known for hosting significant copper and molybdenum deposits globally.
Structural Insights and Mineralisation Potential
Alongside the magnetic anomalies, six major regional fault structures (F1 to F6) were delineated, associated with the prolific Najd Fault System corridor. These faults are considered important structural controls for mineralisation. The northern sector's polymetallic potential is linked to magnetic anomaly gradient zones and intrusive-country rock contacts, with biotite schist identified as a key indicator lithology.
Surface sampling in the southern sector has confirmed high-grade gold and silver mineralisation, with peak assay results of 10.66 g/t gold and 13.95 g/t silver. Gold mineralisation here appears structurally controlled, concentrated in linear magnetic low zones and structural intersections, consistent with quartz-vein or lode gold-silver systems.
Priority Targets and Planned Drilling
Three priority target zones have been defined for follow-up exploration: Z1 in the northern sector targeting copper-molybdenum mineralisation associated with intrusive contacts; Z2 in the southern structural network prospective for quartz-vein gold-silver mineralisation; and Z3, also in the southern area, where surface gold and silver mineralisation occurs along structural fracture zones.
Resource Minerals is finalising plans for a maiden 5,000-metre diamond and reverse circulation (RC) drilling program designed to test the depth extensions of the surface gold mineralisation and the core of the copper-molybdenum targets. Executive Chairman Asimwe Kabunga described the magnetic data as "exceptional," highlighting the scale of the anomalies and the high-grade surface samples as indicators of a potentially significant mineral system.
Strategic Context and Regional Exploration
Wadi Salamah is one of two Saudi Arabian projects held by Resource Minerals, the other being the Shaib Marqan Project located approximately 150 km to the east. The company’s strategy focuses on targeting high-value structural and magmatic corridors within the Arabian Shield, a region that remains underexplored by modern systematic methods.
This announcement follows recent developments at Shaib Marqan, where Resource Minerals identified multiple priority gold target zones and is preparing for a similar 5,000-metre drilling campaign. The continuity of exploration success across these projects reinforces the company’s approach to unlocking value in the Arabian Shield region Resource Minerals Unveils High-Priority Gold Targets at Shaib Marqan.
Bottom Line?
The Wadi Salamah magnetic survey results provide a compelling foundation for Resource Minerals’ upcoming drilling program, though the economic potential remains to be validated by subsurface data.
Questions in the middle?
- How will the upcoming drilling results at Wadi Salamah refine the understanding of the mineral system’s size and grade?
- What are the potential challenges in delineating economic mineralisation given the complex structural setting?
- How might exploration success at Wadi Salamah influence Resource Minerals’ broader strategy in the Arabian Shield?