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ABSTRACTA shot-profile migration algorithm is modified to image multiple reflections at their correct location in the subsurface. This method replaces the impulsive source with an areal source made of recorded primaries and multiples. In addition, the extrapolated wavefield at the receivers consists of recorded multiples only which have been previously separated from the primaries. Migration results with 2-D synthetic and field data prove that the migration of multiples can bring valuable structural information of the earth with or without separation. |