onlap

terminations

A term commonly used by seismic interpreters for reflection patterns generated from strata prograding into deepwater and terminating in the deeper basin

References
Mitchum Jr., R.M., 1977. Seismic stratigraphy and global changes of sea level. Part 11: glossary of terms used in seismic stratigraphy. In: Payton, C.E. (Ed.), Seismic stratigraphy––Applications to Hydrocarbon Exploration, vol. 26. A.A.P.G. Memoir, pp. 205–212.