Audio Magnetotelluric Equipment

Audio-Magnetotelluric Methods in Reconnaissance Geothermal ...

http://geology.isu.edu/Geothermal/References/Conference-Symposium/Hoover_and_Long_1975_Conf.pdf#:~:text=An%20audio-magnetotelluric%20%28AMT%29%20system%20has%20been%20devel%C2%ADoped%20by,deciding%20on%20the%20extent%20of%20costlier%20follow-up%20surveys.

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An automatic audio-magnetotelluric equipment, controlled ...

https://link.springer.com/article/10.1007/BF01465544

A campaign of audio-magnetotelluric soundings in the crater of Momotombo has shown that the structure of this volcano is suitable to a surveillance by this method; it has an only central activity, and the resistivity versus the depth decreases suddenly at least 100 times at about 270 m.So, this technical paper describes the equipment designed and built in order to measure every 2 hr the ...

An Automatic Audio-Magnetotelluric Equipment, …

https://link.springer.com/chapter/10.1007/978-94-009-5283-6_9

The Audio-Magnetotelluric Method (AMT) - USGS

https://pubs.usgs.gov/of/2003/of03-056/html/AMTMdesc.htm

The Audio-magnetotelluric (AMT) method uses natural electromagnetic (EM) fields to investigate the electrical conductivity structure of the earth. Energy for the natural source EM frequencies higher than about one hertz are generated by thunderstorms worldwide. The energy discharged by lightning radiates EM fields that propagate great distances.

An automatic audio-magnetotelluric equipment, controlled ...

https://ui.adsabs.harvard.edu/abs/1984GeoSu...6..291C/abstract

A campaign of audio-magnetotelluric soundings in the crater of Momotombo has shown that the structure of this volcano is suitable to a surveillance by this method; it has an only central activity, and the resistivity versus the depth decreases suddenly at least 100 times at about 270 m. So, this technical paper describes the equipment designed and built in order to …