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Trimline

A clear boundary line on the wall of a glacier valley that delineates the maximum recent thickness of a glacier. It may be a change in the colour of the bedrock, indicating the separation of weathered from unweathered bedrock; the limit of a former lateral moraine or other sediment deposit; or the boundary between vegetated and bare bedrock.

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  • Part of Speech: noun
  • Synonym(s):
  • Blossary:
  • Industry/Domain: Water bodies
  • Category: Glaciers
  • Government Agency: USGS
  • Product:
  • Acronym-Abbreviation:
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