Greenvale Energy has completed a detailed airborne magnetics-radiometrics survey over its Thunderball Uranium Project in the Northern Territory, supported by a government co-funding grant for further electromagnetic exploration.
- 4,313 line km airborne survey completed over EL34157
- Survey data pending processing to refine drill targets
- NT Government co-funds upcoming Airborne Electromagnetic Survey
- Field mapping and sampling to follow survey results
- Focus on uranium mineralisation near Hayes Creek Fault Zone
Completion of Detailed Airborne Survey Over Thunderball
Greenvale Energy (ASX:GRV) has wrapped up a major airborne geophysical survey over its Exploration Licence EL34157 at the Thunderball Uranium Project in the Northern Territory’s Pine Creek region. The survey, flown by Thomson Airborne, covered 4,312.97 line kilometres at a tight 100-metre line spacing and just 50 metres above ground level, delivering a high-resolution magnetic and radiometric dataset intended to sharpen the company’s uranium exploration efforts.
While the raw data awaits processing and interpretation, the new survey fills a critical gap in coverage over EL34157, promising a comprehensive geophysical picture of the entire Thunderball project area. Greenvale’s managing director Alex Cheeseman highlighted the survey’s potential to enhance drill targeting, noting the historically strong correlation between airborne geophysics and drilling success in this region.
Government Grant Boosts Electromagnetic Survey Plans
The Northern Territory Government has awarded Greenvale an Exploration Grant under its Geophysics and Drilling Collaboration program, co-funding a proposed Airborne Electromagnetic (AEM) survey over EL34157. This grant is part of a record $4 million funding round aimed at stimulating exploration across the NT mining sector.
Scheduled for completion by December 2026, the AEM survey will complement the recent magnetics-radiometrics data by in-filling older, lower-resolution surveys conducted by Geoscience Australia and others between 2008 and 2009. Greenvale plans to deploy the SkyTEM system, which is well-suited to detecting a variety of uranium deposit styles and should significantly improve geological resolution along the Hayes Creek Fault Zone and adjacent basin contacts.
Strategic Focus on Uranium Targets in Pine Creek Region
The Thunderball Project sits at a geological crossroads involving the Pine Creek Orogen, Birrindudu Basin, and Daly Basin, with the Hayes Creek Fault Zone acting as a major structural conduit for uranium mineralisation. Previous multi-spectral satellite data identified clusters of helium, radon, and uranium anomalies aligned with structural features, bolstering the case for uranium exploration here.
Greenvale’s geophysical review has flagged sedimentary units such as the Depot Creek and Burrell Sandstones, as well as the Gerowie Tuff, as prime hosts for uranium mineralisation. The nearby Palaeoproterozoic Tabletop Granite batholith is considered a potential uranium source, similar to other deposits in the region.
Next Steps in Field Exploration and Target Development
Following the airborne survey, Greenvale is preparing to mobilise field teams for ground-based mapping and sampling across EL34157 and neighbouring tenement EL33670. These activities aim to validate and expand on airborne anomalies and refine drill targets ahead of future programs.
The company expects to finalise funding agreements for the AEM survey with the NT Government by early August 2026, with the survey itself planned for completion before year-end. This sequence of geophysical and ground exploration work sets the stage for advancing Greenvale’s uranium pipeline in a district that has recently been consolidated through acquisitions, enhancing its strategic footprint in the Pine Creek uranium province.
Bottom Line?
Greenvale’s methodical geophysical and field campaign at Thunderball positions it well to identify drill targets, but the value hinges on interpretation of pending survey data and successful follow-up work.
Questions in the middle?
- Will the new airborne data translate into high-confidence drill targets in a historically prospective but complex geological setting?
- How will Greenvale prioritise targets between EL34157 and its adjacent tenements as ground exploration progresses?
- What impact will the NT Government’s co-funding have on Greenvale’s exploration budget and timeline for resource definition?