TerraTEM is a very advanced transient electromagnetic survey system using the latest developments in electronics and computing. It was designed by professional geophysicists with many years of experience using TEM instruments and optimising their suitability for field use. Its great range of options makes it a very versatile system suitable for a wide range of applications from near-surface to deep exploration. These applications include environmental, geotechnical, archaeological, groundwater, mineral, geothermal and petroleum surveys. Various options make these applications possible. Examples are presented illustrating the application of terraTEMTM, in particular to ground water investigation, environmental pollution, salt water invasion of a fresh water aquifer and site characterisation. In the first example, the advantage of the faster sampling rate of terraTEMTM, is exemplified in the great detail of the data and hence the excellent resolution of the situation.


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