Geoscientific Instrumentation, Methods and Data Systems
Geoscientific Instrumentation, Methods and Data Systems
GI
Articles | Volume 8, issue 2
Articles | Volume 8, issue 2
https://doi.org/10.5194/gi-8-217-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gi-8-217-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 8, issue 2
Research article
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22 Aug 2019
Research article | Highlight paper |  | 22 Aug 2019

A low-cost device for measuring local magnetic anomalies in volcanic terrain

Bertwin M. de Groot and Lennart V. de Groot

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Latest update: 23 Apr 2025
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Short summary
Our knowledge of the Earth's magnetic field arises from magnetic signals stored in lavas. In rugged volcanic terrain, however, the magnetization of the underlying flows may influence the magnetic field as recorded by newly formed flows on top. To measure these local magnetic anomalies, we developed a low-cost field magnetometer with superior accuracy and user-friendliness. The first measurements on Mt. Etna show local magnetic variations that are much larger than expected.
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