Magnetotellurics (MT)

Magnetotellurics (MT) is a passive electromagnetic geophysical method that measures naturally occurring fluctuations in the Earth's magnetic and electric fields—originating from sources like solar winds and lightning—to image the subsurface's electrical conductivity and resistivity. MT surveys enable imaging at depths ranging from hundreds of meters to hundreds of kilometers, depending on the frequency band: higher frequencies yield shallow insights, while low frequencies penetrate deep into the crust and upper mantle. Because conductivity in subsurface materials correlates with factors like fluid content, temperature, rock type, and porosity, MT is highly effective in identifying features such as ore-bearing zones, geothermal systems, fault networks, and aquifers.

Applications


Partner with SLA Geophysics to leverage Magnetotellurics (MT) and complementary geophysical services tailored to your project needs. Contact us today for a free quote, and let's uncover what lies beneath—efficiently, accurately, and responsibly.