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Volume :30 Issue : 2 2003
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Shape and depth solutions form third moving average residual gravity anomalies using the window curves method
Auther : EL-S AYED M. ABDELRAHMAN, TAREK M. EL-ARABY AND KHALID S. ESSA
Geophysics Department, Faculty of Science, Cairo University, Giza, Egypt.
ABSTRACT
In this paper, we have used the window curves method to simultaneously determine the shape factor and the depth of a buried structure from third moving average residual gravity anomalies. The method involves using a relationship between the shape factor and the depth to the source, and a combination of windowed observations. This method can be applied not only to “true residuals” but also to the Bouguer gravity data consisting of the combined effect of a residual component due to a purely local structure and a regional component represented by a deep-seated structure. The method is applied to theoretical data with and without random errors and tested on a known field example from the U.S.A. In all cases, the shape and depth solutions obtained are in good agreement with the actual ones.
Keywords: gravity interpretation; third moving average method; window curves.