Airborne magnetics survey plane

Upgrading geophysical data coverage

Increased resolution of regional geophysical datasets to target exploration under cover.

The Northern Territory Geological Survey (NTGS) is undertaking targeted regional scale magnetic-radiometric or gravity data acquisition programs in prospective areas to improve data quality and density to modern standards.

The geophysical surveys are funded through Resourcing the Territory with Geoscience Australia providing contract management and quality assurance on behalf of NTGS. Geophysical data acquired through these surveys will be available through NTGS via GEMIS or through Geoscience Australia via GADDS.

NTGS Brunette Downs Ground Gravity Survey

The NTGS Brunette Downs Ground Gravity Survey has been completed. The survey was funded under the Northern Territory Government’s Resourcing the Territory 2018–2022 Initiative and the project was managed by Geoscience Australia. The survey covers an area of around 57,000 square kilometres located just north of Tennant Creek and extending to the Northern Territory - Queensland border. The survey infills existing 4 km gravity coverage to 2 km coverage. NTGS partnered with industry to acquire higher resolution data at 1 km x 1 km and 500 m x 500 m spacing over smaller areas within the survey. The data package consist of 17 312  gravity stations as a point located dataset and grids of the newly acquired gravity data.

Download the final data though our FTP site for the NTGS Brunette Downs Ground Gravity Survey.


Creative Commons Attribution 4.0 International (CC BY 4.0). Please observe and retain any copyright or related notices that accompany this material and give attribution to: Northern Territory of Australia (NT Geological Survey) and the Commonwealth of Australia (Geoscience Australia), 2022.

NTGS Mount Peake - Crawford Survey

The NTGS Mount Peake – Crawford Airborne Magnetic and Radiometric Survey was acquired in 2019 and covers an area of approximately 22,000 square km. The survey is centred 250km NNE of Alice Springs and extends from the Tanami Region in the west to 40km east of the Barrow Creek township.

Data was collected along 200m spaced north-south lines at 60m ground clearance. Industry partners are participating in this survey by funding infill data to 100m line spacing over areas of interest.

NTGS Tanami Region Survey

The NTGS Tanami Region Airborne Magnetic and Radiometric Survey was acquired in 2018 over more than 42,000 square km extending from the West Australian border to approximately 300km west of Tennant Creek. The survey was flown at 200m line spacing and more than 240,000 line km were acquired. Industry partners funded an additional 30,000 line km of infill data at 100m spacing.