Fleet moves into exploration space

South Australian start-up launches remote search aid

South Australia-based start-up Fleet Space Technologies (FST) believes its GeoSphere technology, which “links space technology with mining exploration”, can make mineral exploration more sustainable, faster and cheaper.

The company launched GeoSphere this week.

It said the product was already being used by Greenland-focused mineral project incubator, Greenfields Exploration, which says the technology has sped up and lowered the cost of its remote field work.

“Our approach to exploration requires imaging data that is acquired as cost effectively, quickly and as sensitive to the environment as possible,” Greenfields executive director Lindsay Dick said.

“We see the potential in this technology to relieve major pressure points in mining exploration.”

FST says small, local teams can deploy a 50-square-kilometre grid of satellite-enabled GeoSphere geodes with minimal surface interference to exploration ground. The wireless, handheld transportable sensors contain a sophisticated processing unit, satellite transmitter and a seismic sensor which maps the properties of the subsurface via reflected seismic waves by recording ambient noise.

The process is known as ambient noise tomography, or ANT.

FST says when enough ANT data is gathered the geodes partially process the raw information on site, reducing data transmission loads.

The company says rapid processing of geode data via a machine learning algorithm can deliver a “full 3D visualisation of the subsurface down to 2km depth”.

“A clear, rich image of what resources are below ground can be generated in as little as four days,” it says.

“Ordinarily, ANT takes 6-12 months to return a conclusive result.

“Using a bespoke Fleet-developed system, these visualisations are accessible to view and export anywhere on earth in real-time. The speed of this imaging now means that thousands of square kilometres of area can be imaged in a fraction of the time of traditional methods.”

Greenfields Exploration’s 1000sq.km target area is said to be more than 1600km away from the nearest town. It said within a week of deploying FST’s geodes it was reviewing field data, versus the standard 10 weeks with conventional methods.


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