Greenvale Energy Commences 950-Line-Kilometre SkyTEM AEM Survey at Thunderball Uranium Project

Mukul

03 November 2026 08:45 PM AEDT

Greenvale Energy Commences 950-Line-Kilometre SkyTEM AEM Survey at Thunderball Uranium Project

Image Source: Krish Capital Pty Ltd

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Greenvale Energy Limited (ASX:GRV) has commenced a tenement-wide high-resolution Airborne Electromagnetic (AEM) survey across Exploration Licence 34157, part of its Thunderball Uranium Project in the Northern Territory, with the approximately 950-line-kilometre SkyTEM survey co-funded by the Northern Territory Government through the Round 19 Geophysics and Drilling Collaboration Grant scheme.

Key Points

Approximately 950 line-kilometres to be flown using the SkyTEM312 FAST helicopter-borne electromagnetic system over EL34157 in the Northern Territory.
Northern Territory Government co-funding secured through the Round 19 Geophysics and Drilling Collaboration Grant, awarded on 4 June 2026.
All field-based work is scheduled to be completed in the first half of November, with results expected in late December 2026 or early January 2027.
Survey results will be used in the design of future drilling programs planned for the 2027 field season, with permitting and regulatory approvals underway.

AEM Survey Design and Objectives

The SkyTEM survey is designed on a flight line spacing of 400 metres, with planned survey lines oriented East-West and North-South tie lines. According to the filing, the survey has three primary objectives: to identify and map geological features that may influence the location and concentration of uranium mineralisation around known prospects; to improve the definition of potential sub-surface paleochannel systems identified by earlier radiometric surveys; and to identify and map new structures and potential transport pathways for uranium-rich fluids. The resulting data will in-fill existing electromagnetic data acquired by Geoscience Australia in 2008-2009.

SkyTEM312 FAST System Specifications

The SkyTEM312 FAST system is a helicopter-borne Transient Electromagnetic method designed to map shallow near-surface drainage features and deeper stratigraphic and structural features to depths of approximately 500 metres below ground surface. The system operates at speeds of up to 150 kilometres per hour. The filing states the system uses a large transmitter loop suspended beneath the helicopter, flown at low altitude, generating high-resolution data across both shallow and deeper parts of the target area. SkyTEM personnel mobilised to the Thunderball Project area at the end of October, with flying operations expected to commence in the first week of November.

Northern Territory Government Grant and Stakeholder Coordination

Greenvale received the Exploration Grant from the NT Government's Minister for Mining and Energy on 4 June 2026, as part of Round 19 of the Geophysics and Drilling Collaboration Program, to co-fund the AEM survey over EL34157. The filing states the program has been planned and conducted in close coordination with pastoralists at Douglas Station. The survey covers the southern part of the Thunderball Uranium Project within the Pine Creek Orogen, where three recognised predominant district-scale structural trends have been identified, with known uranium occurrences noted to coincide with NE-SW and NNW-SSE orientations.

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