Geomorphological Concepts

noun a geological feature characterized by a steep, downslope face

• The slip face of the dune is constantly changing due to the wind patterns.
• Watch out for the steep slip face when climbing up the sand dune.
• I nearly wiped out trying to ski down the slip face of the mountain.
• She felt like she was on the slip face of a steep slope, trying to keep up with her workload.

noun a geological term referring to an ancient land surface that has been preserved beneath younger rocks

• The study of the paleosurface revealed important information about the ancient landscape.
• They found some cool stuff on the old surface.
• Dude, did you see that crazy old ground they dug up?
• The paleosurface of the city holds secrets of its past waiting to be uncovered.