onlap

About 0.03 uses per million words.

Meaning

1. noun The phenomenon of successively younger rock strata extending progressively further across an erosion surface cut in older rocks.
2. verb To form an onlap.

Similar words

succession allocycle telogenesis inlier stage lopingian younging angular unconformity stratigraphy orogenesis

Often followed by

of the and onto surface or curve is on