Trim_line

Trim line

Trim line

Clear line on the side of a valley marking the most recent highest extent of the glacier

For the variety of telephone set, see Trimline.
Not to be confused with Line trim.

A trim line, also written as trimline, is a clear line on the side of a valley formed by a glacier. The line marks the most recent highest extent of the glacier. The line may be visible due to changes in color to the rock or to changes in vegetation on either side of the line.

A trim line marks the previous height of Tana Glacier in Alaska
A trim line on Vihren peak, Pirin Mountain, Bulgaria

The term "trim line" is also used for similar looking phenomena caused by floods, volcanic activity, or tsunamis.[1]

References

  1. [1]
    Steven Dutch, Giant Waves in Lituya Bay, Alaska Archived 2007-06-16 at the Wayback Machine USGS PP 354-C
Stub icon

This glaciology article is a stub. You can help Wikipedia by expanding it.
Share this article:

This article uses material from the Wikipedia article Trim_line, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.