| Answer | Crossword Clue |
|---|---|
| superstratum | overlying stratum or layer |
| lithostatic | relating to the pressure or stress imposed on a layer of soil or rock by the weight of overlying material |
| folia | thin leaflike stratum or layer; lamella |
| folium | thin leaflike stratum or layer; lamella |
| seam | thin layer or stratum (as of rock) between distinctive layers |
| seams | thin layer or stratum (as of rock) between distinctive layers |
| substratum | something that is spread or laid under something else; a stratum or layer lying under another |
