Term: | Erratic |
Definition: |
A rock of unspecified shape and size, transported a significant distance from its origin by a glacier or iceberg and deposited by melting of the ice. Erratics range from pebble-size to larger than a house and usually are of a different composition that the bedrock or sediment on which they are deposited.
A boulder or large block of bedrock that is being, or has been, transported away from its source by a glacier. Swisseduc A large rock boulder that has been transported by glaciers away from its origin and deposited in a region of dissimilar rock. PhysicalGeography GCW |