The GEM GSM-19V is arobust portable VLF systemsuitable for geological and environmental investigations. Used for years as a fundamental tool infaults and structures mapping, nowadays, thanks to the possibility of measuring three stations at a time, it is used in support investigations or combined with magnetometry measurements.
The acquired measurements can be inverted using theVLF2DMF softwaredeveloped by EMTOMO to obtain deep resistivity sections.
