Javelin Minerals Uncovers New Gold-Copper Targets at Coogee West

Exploration Breakthrough at Coogee West

Javelin Minerals Limited (ASX, JAV) has announced the identification of several compelling gold-copper drilling targets at its Coogee West Project, located in Western Australia's prolific Eastern Goldfields region. This discovery follows a comprehensive reprocessing and interpretation of historical geophysical datasets, including gravity, magnetic, electromagnetic, and induced polarization surveys.

The newly identified targets, many of which have remained underexplored due to extensive alluvial cover and shallow historical drilling, present a promising opportunity to expand the known mineralisation footprint. Notably, these include discrete, strong magnetic anomalies and gold trends extending up to 3 kilometers, which have either never been drilled or only tested to depths of 25-30 meters.

Strategic Drilling Program on the Horizon

Javelin plans to prioritise these targets in its upcoming exploration drilling campaign, expected to commence in the September quarter of 2025. The program aims to test the highest-priority anomalies, including a standout circular magnetic anomaly (CG-04) located approximately 1.5 kilometers west of the existing Coogee Pit. This target exhibits a strong magnetic response and remains completely untested at depth, making it a high-order prospect for gold-copper mineralisation.

Additional targets such as CG-05 through CG-08 represent gold trends and magnetic aureoles associated with interpreted intrusive bodies, geological settings analogous to known mineralised zones nearby. These targets benefit from detailed 3D magnetic inversion modelling, which highlights magnetite-bearing zones often correlated with gold mineralisation in the region.

Context Within a World-Class Gold District

The Coogee Gold Project lies on the northern side of Lake Lefroy, approximately 20 kilometers northeast of Kambalda and 55 kilometers south of Kalgoorlie. It is situated adjacent to the world-renowned St Ives Goldfield, a prolific gold-producing district. The project area encompasses fertile greenstone belts with multiple known gold and copper deposits, including Coogee, Salt Creek, Daisy-Milano, and Lucky Bay.

Javelin’s existing Mineral Resource Estimate (MRE) for the Coogee Gold Project, updated in August 2024, stands at 3.65 million tonnes grading 1.08 grams per tonne gold, containing approximately 126,685 ounces of gold, alongside 1.01 million tonnes grading 0.41% copper. This resource base provides a solid foundation for the company’s exploration ambitions.

Technical Rigor and Historical Data Integration

The identification of these targets was enabled by the integration of extensive historical drilling data and modern geophysical techniques. Javelin engaged Core Geophysics to compile and interpret open-file datasets, revealing anomalies obscured by surface cover and inadequately tested by previous shallow aircore drilling. The company’s approach reflects a methodical and data-driven strategy to unlock value from underexplored zones within a known mineralised system.

Executive Chairman Brett Mitchell emphasised the significance of the findings, stating, “We know that Coogee hosts a significant gold system in a world-class location. These geophysical results highlight substantial exploration upside at Coogee West, with numerous compelling targets identified.”

Looking Ahead

With drilling preparations underway, the market will be watching closely for assay results that could validate these geophysical targets and potentially lead to resource expansion. The Coogee West Project’s proximity to existing infrastructure and its location within a proven gold district add to the strategic appeal of these exploration efforts.