Scientists at the Satellite Applications Catapult are leading a new study, funded by Innovate UK, to see if it is possible to detect a lithium ‘fingerprint’ from space by imaging vegetation and minerals on the ground using satellites.
The data from this study will be integrated with geological information to create a map to help identify indicators of geological structures that may host lithium in waters (known as brines) deep below the surface.
The study is taking place in Cornwall where there are many intriguing historical accounts of brine containing lithium, some dating back to as early as 1864. Lithium is a crucial material for the development of battery storage and electric car batteries.
The challenge posed by the study is to understand whether satellite techniques can assist in prioritising areas for exploration for the future production of lithium. Such techniques include the evaluation of geology and vegetation that might indicate the presence of structures bearing lithium-rich brines deep below the surface. The study explores how certain characteristics might appear on satellite images and how the processing of satellite earth observation data may assist exploration.
There are eleven organisations involved in the study, exploring four areas of research: geology, vegetation, fault detection and environmental monitoring of mining operations. Using the data from the project, the team will also develop a visualisation tool to show how EO and geological data can be integrated to develop software that can monitor the impact of a mine throughout its lifecycle.
The project has been funded through a grant of £850k from Innovate UK, the UK’s innovation agency and the team comprises experts from the British Geological Survey, Camborne School of Mines (part of the University of Exeter), Carrak Consulting, North Coast Consulting, Cornish Lithium, CGG, Terrabotics, Telespazio Vega UK, Geo Performa and Dares Technology.
Jeremy Wrathall, founder and chief executive of Cornish Lithium, said: “Lithium has significant strategic importance to the UK economy and we hope that the funding will accelerate understanding of the potential to extract lithium in Cornwall. We believe that techniques developed from this study will prove of great interest to the mining industry globally given the growing importance of Earth Observation techniques as an unobtrusive exploration tool worldwide. We look forward to taking this exciting project forward to the next stage of its development.”
Cristian Rossi, the principal earth observation specialist at Satellite Applications Catapult, said: “Project Lithium is a very exciting project for the Catapult. We get to push boundaries by integrating cutting edge earth observation techniques with local surveys to develop the first digital maps that display the probability of occurrence of lithium in Cornwall. Initial investigations show promising outcomes and the team is currently working on their validation.”
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