onlap

Example:The incing of younger sediment into older strata suggests a tectonic uplift event.

Definition:a geological term that describes a similar process where one layer of rock or sediment intrudes or intrudes into another

Example:The intrusion of volcanic rock into the sedimentary strata indicates a period of volcanic activity.

Definition:the process of entering or invading; in geology, a younger layer that pushes into an older layer