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Magnetotellurics case history: Precambrian overthrust (Northwestern Colorado) (view source)
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Magnetotellurics (MT) can be used in an [[overthrust]] environment to delineate conductive sediments beneath a resistive thrust plate. It is often difficult to acquire good-quality [[seismic data]] in an overthrust area where high-velocity (high-resistivity, low-conductivity) rocks overlie low-velocity (low-resistivity, high-conductivity) sediments.
Magnetotellurics (MT) can be used in an [[overthrust]] environment to delineate [[Wikipedia:Electrical resistivity and conductivity|conductive]] sediments beneath a [[Wikipedia:Electrical resistivity and conductivity|resistive]] thrust plate. It is often difficult to acquire good-quality [[seismic data]] in an overthrust area where high-velocity (high-resistivity, low-conductivity) rocks overlie low-velocity (low-resistivity, high-conductivity) sediments.
The [[Precambrian]] overthrust in the Bear Springs area of northwestern Colorado is an example.<ref name=ch16r5>Mills, A., 1994, Zephyr Geophysical Services, personal communication.</ref>
The [[Precambrian]] overthrust in the Bear Springs area of northwestern Colorado is an example.<ref name=ch16r5>Mills, A., 1994, Zephyr Geophysical Services, personal communication.</ref>