Gem Systems

The GSM-19 Overhauser magnetometer isn't just used by industry—it also plays an important role in geoscience education and research.

At the University of Bremen's Geophysics group, researchers use four Overhauser magnetometers/gradiometers for field courses, research projects, and magnetic surveys. Their applications range from and to , ore , geology, and mapping buried infrastructure.

Reliable magnetic instrumentation supports both the next generation of geophysicists and the scientific research advancing our understanding of the subsurface.

Learn more about the University of Bremen's field magnetics program:

https://www.geophysik.uni-bremen.de/page.php?pageid=636

Magnetic Myth 🧲

Myth: Magnetic surveys only work for finding minerals.

Reality: Magnetics has applications far beyond mining.

Magnetic surveys are used for archaeology, unexploded ordnance (UXO) detection, groundwater studies, environmental investigations, infrastructure mapping, volcanology, and geomagnetic observatories—just to name a few.

One technology. Countless applications.

Check our applications section of our website to learn more:

https://www.gemsys.ca/

Magnetic surveys continue to play a key role in modern mineral exploration.

Vault Strategic Mining has announced plans for a UAV magnetic survey at its War Bond Tungsten Project in Nevada to help refine drill targets and improve the understanding of subsurface ahead of drilling.

The survey will utilize a Blacksquare Hercules platform equipped with the GEM Systems potassium vapour magnetometer and using a GSM-19 base station — a combination designed to collect high-quality magnetic data while supporting safe, efficient terrain-following flight operations.

It's great to see our being selected to support the next generation of critical mineral exploration projects.

Read the full announcement:
https://www.thenewswire.com/press-releases/1AqRFJb1-vault-strategic-plans-drone-mag-survey-to-advance-drill-target-delineation-at-the-war-bond-tungsten-project-in-nevada.html

Vault Strategic Plans Drone-Mag Survey To Advance Drill Target Delineation At The War Bond Tungsten Project In Nevada Vancouver, British Columbia - July 10, 2026 – TheNewswire - Vault Strategic Mining Corp. (TSXV: KNOX) (OTC: KNXFF) (FSE: M850) (WKN: A41WE4) ("Vault" or the "Company") is pleased to announce that it is advancing plans for a high-resolution UAV-based airborne magnetic survey at its War Bond Tungste...

Here is a beautiful sent by Exploration Consultants Ltd. of the in action.

Good luck on your surveys around North America!

Looking for more information on our ? Check our website!

https://www.gemsys.ca/uav-magnetometers/

Why do so many exploration programs still use the GSM-19?

In an industry where technology is constantly evolving, some tools continue to earn their place in the field.

Recent technical reports for mineral exploration projects continue to specify the GEM Systems GSM-19 magnetometer as part of ground magnetic survey programs, thanks to its accuracy, reliability, and proven performance.

Whether mapping geological structures, identifying magnetic anomalies, or supporting target generation, high-quality magnetic data remains the foundation of successful exploration.

Decades after its introduction, the GSM-19 continues to help geophysicists collect the reliable field data that drives exploration forward.

https://www.gemsys.ca/rugged-overhauser-magnetometer/

Thanks to Matīss Brants for sharing their of the GSM-19W as a base station in front of Eyjabakkajokull glacier in Iceland.

It's a beautiful place for a survey!

www.gemsys.ca

Have you seen the in action? Check out this video on our channel!

The MagVLF is a cutting-edge geophysical solution that combines GEM Systems’ high-sensitivity ™ magnetometer and -EM system into a single, lightweight platform.

Designed for simultaneous magnetic and electromagnetic data collection, MagVLF delivers powerful insights for geological, mineral, and environmental surveys—especially in remote or hard-to-access areas.

MagVLF Integrated System The MagVLF is a cutting-edge geophysical solution that combines GEM...

Thanks to Saurav Chakraborty from Mines & Minerals for sharing these from a ground survey in using the GSM-19.

www.gemsys.ca

High-resolution UAV magnetics in mineral exploration

A recent technical report for Riverside Resources’ Blue Jay project describes a UAV magnetic survey completed with a GEM Systems GSMP-35U potassium magnetometer and a GSM-19 Overhauser base station.

The survey combined airborne acquisition with continuous base-station monitoring to account for diurnal magnetic variation — an essential step in producing dependable magnetic data.

For exploration teams, high-resolution UAV magnetics can help map structural trends and geological contrasts while providing a detailed dataset to support target generation and follow-up work.
https://www.rivres.com/images/pdf/AGM/2025/BLUEJAY_FINAL_Tech_report_Feb26FINAL_w_Certificate_-_Conformed_004.pdf

🧲 Magnetic Myth: “Magnetics is only for mineral exploration.”

Magnetic surveys are widely used to map geology and support mineral exploration — but that is only one application.

A newly established geomagnetic observatory at Pituffik, Greenland, is helping expand magnetic-field observations in the high Arctic, where coverage has historically been limited.

Observatory data supports research into Earth’s magnetic environment, space weather, navigation, and long-term geomagnetic change.

From a ground survey grid to a remote Arctic observatory, magnetometry is ultimately about measuring and understanding the same dynamic Earth system.

https://gi.copernicus.org/articles/15/1/2026/

Pituffik (PIF), a new magnetic observatory in the Arctic Abstract. Pituffik is a newly established geomagnetic observatory located in the high Arctic – a region with sparse geomagnetic observational coverage. Positioned within the polar cap at Quasi-Dipole geomagnetic coordinates 83.19° latitude and 25.25° longitude, the observatory provides valuable ...