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{{#category_index:M|moveout}} The difference in arrival time at different geophone positions, also called Stepout.

1. Arrival times differ because of source-to-geophone distance differences (normal moveout, q.v.), because of reflector dip (dip moveout, q.v.), and because of elevation and weathering variations (static corrections, q.v.). See also delta-t.

2. Dip moveout alone; see Figure D-20.

See also: main page Reflection_moveout.