Multiple Chargeability Anomalies Identified at Kookabookra Gold Project

Geophysical Survey Highlights New Prospects

Thunderbird Resources Limited (ASX, THB) has reported compelling results from a recent Gradient Array Induced Polarisation (IP) and Resistivity survey at its 100%-owned Kookabookra Gold Project in north-eastern New South Wales. The survey, conducted over the Mannix and Mt Secret prospects, has delineated several significant chargeability anomalies indicative of sulphide mineralisation, which often correlates with gold deposits.

The anomalies identified are particularly noteworthy because they occur in geologically favourable settings, including proximity to known faults and gold-in-soil geochemical anomalies. At Mt Secret, two major chargeability anomalies lie adjacent to the Glen Bluff Fault and a small gold-in-soil anomaly, while at Mannix, anomalies are located near an untested gold-in-soil anomaly with historical drilling focused elsewhere.

Untested Targets Signal Exploration Upside

Historical drilling at both prospects did not test these newly identified chargeability anomalies, suggesting that previous efforts may have narrowly missed zones of significant mineralisation. At Mannix, previous drilling intersected consistent low-grade gold mineralisation but did not cover the southern chargeability anomalies, which are now high-priority targets. Similarly, at Mt Secret, the anomalies occur in areas never drilled before, despite nearby historical mine workings and encouraging gold assay results.

Thunderbird’s Executive Chairman, George Ventouras, emphasised the potential upside, describing the results as “outstanding” and highlighting that the anomalies are located close to zones where mineralisation was previously intersected. He suggested that the upcoming drilling program could convert these near-misses into meaningful discoveries, underscoring the broader exploration potential within the Kookabookra tenement.

Drilling and Further Exploration Plans

Planning for the company’s maiden drilling program at Kookabookra is well advanced, with drill permit applications expected imminently and drilling scheduled to commence in the fourth quarter of 2025. This program aims to systematically test the Mannix and Mt Secret chargeability anomalies alongside existing geochemical data.

In parallel, Thunderbird is progressing additional exploration activities at the Bear Hill-Butchers Reef area, where recent rock chip samples have returned high-grade gold assays up to 11.65 grams per tonne. Soil sampling and geological mapping are planned to begin shortly, potentially expanding the project’s footprint of high-grade mineralisation.

Context Within Regional Gold Systems

The Kookabookra Project lies within the New England Orogen, an area known for orogenic and intrusion-related gold systems. The positive correlation between chargeability anomalies and gold-antimony mineralisation has been demonstrated nearby at the Hillgrove Sb-Au Project, lending further confidence to Thunderbird’s exploration model. The company’s integrated approach combining geophysics, geochemistry, and historical data aims to unlock the project’s considerable potential.

While assay results from the new targets are pending drilling, the current findings mark a significant step forward in Thunderbird’s exploration campaign, positioning the company well to advance its gold portfolio in a region with a rich mining history.