Learn about drone magnetics
Drone magnetics is a highly technical, complex field. Below is a range of articles to read, learn and understand why both drone magnetics and in particular AirGeoX’s TotalMag system produces the highest quality magnetic data in the world.
The primary benefit of drone magnetics over manned airborne magnetics is the greater resolution and greater amplitude of geological units primarily from the lower flight height. This allows geologists to map more geological structure that will produce more accurate drill hits and increase the likelihood of hitting a deposit. But just how much greater is the resolution?
Below is a comparison between an AirGeoX drone magnetic survey (3.5km x 2km) for Aeris Resources Limited that had been flown by Geoscience Australia and released for the Cobar 2021 magnetic survey (https://ecat.ga.gov.au/geonetwork/srv/api/records/146166).
The top image is the Geoscience Australia TMI RTP 2VD (highest resolution produced) image collected by a manned aircraft in 2021. The line spacing was 200m, flown E-W at an altitude of 60m.
Below is the AirGeoX TMI RTP 2VD (highest resolution) image. Lines were flown E-W, 25m line spacing at a height of 30-35m.
Is this the same area? The client was blown away at the level of detail detected by the AirGeoX drone magnetic system. The ability for AirGeoX to detect structure parallel to the flight path illustrates the extremely high quality and non existence of filtering to produce this result. The drone magnetic survey shows an E-W fabric not seen by the manned survey.
While the comparison due to the wider line spacing of the Geoscience Australia survey, the comparison shows that if you’re a geologist who needs to map geological structure for a future drilling program, you will miss the majority of the structural information if you don’t use a high resolution drone magnetic survey.
This survey shows that while a drone magnetic survey costs more per kilometer than a manned aircraft mag survey, the money is well worth the improvement in resolution.