EXOSPHERE BY FLEET®
Technical Page
EXOSPHERE BY FLEET® provides low impact mineral exploration solutions to a range of leading mining companies around the globe. With deployments in every continent and more than 120 Ambient Noise Tomography (ANT) surveys worldwide, our technology has been changing the mineral exploration industry. This page centralizes our technical materials, ranging from how the sensors work, how the technology compares to other methods and recent technical partnerships and results.
Fleet and Northern Star Case Study:
Joint Case Study: Northern Star Resources and Fleet Space on Kalgoorlie Operations
Find out how ExoSphere by Fleet® was applied at Northern Star's Kalgoorlie operations in Western Australia. The ANT survey covered roughly 80km2, with acquisition in near real-time with over 11 individual surveys to a depth of 1km below surface, demonstrating the potential of the ANT method for gold projects.
Core Lithium and Fleet’s Technical paper:
ANT for Lithium: Joint Case Study with Core Lithium on Bynoe Field
This case study was developed by Core Lithium and Fleet Space to discuss the ANT survey results on the Finniss Project in the Northern Territory. Core Lithium conducted an Ambient Noise Tomography survey in 2022 in an attempt to image the BP33 pegmatite. The ANT survey was successful to identify blind pegmatites and also identified other structural features.
Technology comparison:
Ambient Noise Tomography (ANT) VS 2D Active Seismic
In this short technical comparison we showcase how the Ambient Noise Tomography (ANT) method compares with 2D Active Seismic in two real case scenarios. The ANT method penetrates cover with great sensitivity to deep deposits and subvertical features where Active Seismic can struggle while also adding a 3D element to help identify faults.
Fleet’s Geode Technical paper:
Fleet’s Geode: a Breakthrough Sensor for Real-Time Ambient Seismic Noise Tomography
In this paper we discuss the key differences between current nodal technology and the Geode, showcasing results of a field trial where the performance of the Geode is compared with a commercially popular nodal geophone. We also discuss how Internet of Things (DtS-IoT) in the Geode's modem along with edge processing of seismic data enables to image the subsurface in near real-time.
Core Lithium’s Paper:
Core Lithium’s Paper: applying ANT in Lithium Exploration
This paper released by Core Lithium showcases how the ExoSphere solution has been applied in their surveys in the Northern Territory, revealing that the technology was successful in directly identifying lithium pegmatites. Survey results indicate the BP33 body imaged as a distinct low velocity anomaly, showing excellent correlation with the pegmatite body interpreted from drilling. The 3D ANT model also highlighted a number of other low velocity zones which represent new pegmatite targets that have never been drilled.
Our Key People
We source global experts to solve the latest
challenges on geoscience
Dr Gerrit Olivier
Director of Planetary Geophysics
-
During his career, Gerrit has developed novel low-impact subsurface monitoring and imaging methods for the mining industry.
Gerrit completed his MSc in Theoretical Physics at the University of Stellenbosch (South Africa) and his PhD in Geophysics at the Université Grenoble Alpes (France). He is the holder of numerous awards for his work in passive seismic methods, and is committed to expanding its use for mineral exploration on Earth and beyond.
Darren Burrows
Senior Geophysicist
-
With close to 20 years of experience in the geoscience industry, Darren's expertise includes work in South African Gold and Platinum mines, processing and interpretation of airborne geophysical data in Africa and the Middle East, and providing exploration advice to mineral explorers worldwide.
Darren has a deep understanding of the resource exploration industry, its challenges and future opportunities.
Darren is based in Canada to support our local clients.
Dr Timothy Jones
Computational Geophysicist
-
Tim is interested in multi-disciplinary problems in Earth Science. He grew up in Newcastle and earned his BSc from Macquarie University and PhD from the Australian National University.
Currently applying Ambient Noise Tomography (AT) to mineral exploration at Fleet, he has also worked in the US, at the University of California and the Carnegie Institution for Science, and taught data science at the University of Adelaide.
In 2017, he received an honor from the American Geophysical Union for “Study of Earth’s Deep Interior.”