Abstract
Based on the decay characteristics, a total of 344 AEM-INPUT anomalies recorded in a multiparameter airborne geophysical survey over a part of Jhansi district (U.P.) India is studied and classified as good (38), medium (82) and poor (224). The parameters used for this purpose are: (1) time parameter (τ), (2) slope of the decay curve; and (3) channel amplitude ratio ( C4 C2 ). An approximate estimate of conductivity—thickness product ( σt) is made from the time parameter (τ). The plots of σt versus the rate of decay and channel amplitude ratio ( C4 C2 ) exhibit an approximate linear relationship. The σt map prepared from the estimate of this quantity for individual anomalies shows a good correlation with the airborne magnetic map and the local geology of the area. The coincidence of most of the poor anomalies with the exposures of conducting shales or other surface conductors supports the classification procedure employed and their use in the interpretation of AEM anomalies.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.