Electromagnetic images of the Earth from near-surface to deep within the mantle

摘要: The natural-source magnetotelluric (MT) technique has one major advantage over all other electrical or electromagnetic (EM) methods: namely that the skin depth phenomenon ensures depths can be probed using MT data, albeit with decreasing resolution due to intrinsic spatiallyaveraging filter of method. Thus, tune for interest and use same processing, analysis, modelling inversion approaches; must only different magnetic sensors input boards higher digitizing rates.