Greenvale Energy (ASX:GRV) has commenced its 2026 Northern Territory exploration field season with an airborne magnetics and radiometric survey at the Thunderball Uranium Project.
The survey covered 4,313 line-km at 100m spacing and 50m flight height across exploration licence EL34157, providing improved data over the Hayes Creek Fault Zone — a major controlling structure for uranium mineralisation in the project area.
Thomson Airborne completed the survey between 14 and 17 June using east-west line orientation to map features of multiple strike directions. Results are pending processing and interpretation.
Managing Director Alex Cheeseman says the data will fill a gap over EL34157 and give a ‘complete, high-resolution picture’ of the entire project.
“The data obtained fills a gap over […] an area that has traditionally seen a strong correlation between airborne geophysics and drilling results,” Cheeseman says.
The company has also been awarded an Exploration Grant under Round 19 of the Northern Territory Government’s Geophysics and Drilling Collaboration program.
This grant will co-fund a proposed airborne electromagnetic survey designed to improve resolution across the contact of the Pine Creek Orogen and Birrindudu and Daly Basins.
The Thunderball Uranium Project sits on the northeastern contacts of the Cambro-Ordovician Daly Basin, the Mesoproterozoic Birrindudu Basin, and the underlying Pine Creek Orogen.
The Hayes Creek Fault Zone extends for more than 20km through the project and forms a predominant transport pathway for uraniferous fluids in the southern Pine Creek Orogen.
Previous multi-spectral data acquired in late 2025 identified multiple helium, radon, and uranium anomalies across EL34157, with radon and helium clustered around structural elements.
Under the grant terms, funding agreements will be negotiated and executed by 1 August 2026, with the airborne electromagnetic survey to be completed by December 2026.
The company will also commence ground-based mapping and sampling within EL34157 and EL33670 in coming weeks.
Greenvale Energy is a diversified explorer advancing a portfolio of uranium, torbanite, and geothermal assets across the Northern Territory and Queensland.
Write to JC Villarba at Mining.com.au
Images: Greenvale Energy
