Dictionary:Peg-leg multiple

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A multiple reflection involving successive reflection at different interfaces so that its travel path is not symmetric. Usually refers to short-path multiples (type 1 in Figure M-18) within thin beds, which result in transferring energy from the front of a wavetrain and adding it back later, and thus is a mechanism for changing waveshape. See Figure M-18 and Sheriff and Geldart (1995, 163, 508).