Determination of boundary between two layers using gravity data
|Location||The 25 Symposium of Geosciences|
|Holding Date||01 July 2007|
Determination of boundary between tow layers using gravity data
Inverse modeling is one of the most elegant geophysical tools for obtaining 2-D and 3-D images of geological structure.
Determination of the geometry of layers boundary, by nonlinear inverse modeling of gravity data, is the aim of this study.
The algorithm uses a nonlinear iterative procedure for simulation of underneath layer geometry. At the first step, the nonlinear problem changes to a linear problem by a proper approximation and standard method. The second step is the parameterization of the model. Finally, an initial model is suggested on the basis of geological and geophysical assumption, using the numerical analysis, Jacobean matrix is calculated.
The practical effectiveness of this method is demonstrated by inversion of real examples. The results compared with the geotechnic and geological information.