interbed

/ˌɪntərˈbɛd/
verb
  1. To place or deposit a layer of one material between layers of another material, especially in geology or construction.
    • In the lab, they interbed thin sheets of plastic between layers of wood to create a stronger composite material.
    • Geologists often interbed layers of sandstone and shale when studying sedimentary rock formations.
    • The construction team decided to interbed gravel with clay to improve drainage under the road.