Parallel ridges and grooves on the surface

Status: Valid

Definition: Elongated parallel ridges and grooves on a surface. Ridges and grooves are oriented parallel to the direction of former ice flow. Low relief and width in relation to length.

Updated: 10.12.2025
Date accepted: 10/12/2025
Submitter: Norwegian Mapping Authority
Owner: Geological Survey of Norway

Code value: 5