Esker
Status: Valid
Definition: Distinct ridge in sorted surficial sediment, resulting from deposition in tunnels or cavities in a glacier. The line symbol for esker (12) can be used in combination with this polygon to emphasize the position and orientation of the ridge.
Updated: 09.12.2025
Date accepted: 09/12/2025
Submitter: Norwegian Mapping Authority
Owner: Geological Survey of Norway
Date accepted: 09/12/2025
Submitter: Norwegian Mapping Authority
Owner: Geological Survey of Norway