Application of seismic atributes is one of the most common way of study ing srbsurface variation .dip and true thickness as seismic attributes play an important role . for instance ,in detection of structural events like faults and imaging edges of straigraphic.
in this study Isopach and dip maps of the reservoir layer in a 3D seismic profect in northeast iran were calculated . Then the true thickness map of the layer was computed .The true thickness map shows subtle features such as minor faults and alluvial fan in the reservoir layer. also displacement of some faults are deduced from the true thickness map
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