Answer:
A boundary between non-sedimentary and sedimentary rocks is an example of nonconformity.
Step-by-step explanation:
Nonconformity happen when sedimentary rocks are deposited on igneous and metamorphic rocks.
This sedimentation forms a boundary between the surfaces of the two rocks.
This gap that is formed is what is referred to as an unconformity, the specific unconformity above is non-conformity.