In itself, it doesn't do anything to the terrain. It doesn't emit any signals. There's no impact. It's a passive system, so it's measuring natural fields that are occurring. Essentially, it will very accurately and quickly calculate how the masses of geology are changing beneath the surface.
From subsurface down to depths of about 10 kilometres, it will map. in very high resolution. the primary geology, what rock types are there, the structures, how the rocks have been broken and moved, their alteration and how fluid has moved through the rocks, and ultimately the mineralization, in terms of how ore bodies or petroleum resources are formed and stored.