Application Of Active Audiomagnetotellurics (Aamt) In The Geothermal Field Of Travale, Tuscany

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Journal Article: Application Of Active Audiomagnetotellurics (Aamt) In The Geothermal Field Of Travale, Tuscany

Abstract
In October 1981 the AAMT method was tested in the geothermal field of Travale. This method is based on the MT method, but uses artificial EM fields excited by a transmitter some kilometres from the receiving station. The transmitter consists of a switch mode amplifier for the lower frequency band (< 300 Hz) and six stacked linear amplifiers for the high frequency band. Maximum output is about 5 kW. For measurement of the very small EM field at the receiver the correlation technique is used to obtain best noise rejection. Interpretation of measured data is done by model calculations with the help of a near field theory. Cagniard's theory is found to be applicable only for high frequencies (i.e. short periods). The final result is a three-layer model in good agreement with known geology and resistivity models from other authors.

Authors 
J. Otten and G. Musmann








Published Journal 
Geothermics, 1985





DOI 
Not Provided
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Citation

J. Otten,G. Musmann. 1985. Application Of Active Audiomagnetotellurics (Aamt) In The Geothermal Field Of Travale, Tuscany. Geothermics. (!) .