Trim line

Trim line

A trim line (or 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.

The term "trim line" is also used for similar looking phenomena caused by floods, volcanic activity, or tsunamis.Steven Dutch, [http://www.uwsp.edu/geo/projects/geoweb/participants/Dutch/LituyaBay/Lituya4.HTM Giant Waves in Lituya Bay, Alaska] USGS PP 354-C]

References


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  • trim — I. verb (trimmed; trimming) Etymology: probably from Middle English *trimmen to prepare, put in order, from Old English trymian, trymman to strengthen, arrange, from trum strong, firm; probably akin to Old English trēo tree, wood more at tree… …   New Collegiate Dictionary

  • trim — [c]/trɪm / (say trim) verb (trimmed, trimming) –verb (t) 1. to reduce to a neat or orderly state by clipping, paring, pruning, etc.: to trim a hedge. 2. to modify (opinions, etc.) according to expediency. 3. Carpentry to bring (a piece of timber …  

  • trim — Synonyms and related words: Attic, Ciceronian, abbreviate, ability, abridge, abstain, abstract, adjoin, adjunct, adjustment, adorn, adornment, affix, all ataunto, anal, anchor, annex, apoise, apparel, arrange, arrangement, array, ataunt, athletic …   Moby Thesaurus

  • line — Synonyms and related words: DMZ, Indian file, L, MO, Spenserian stanza, WATS, WATS line, Zeitgeist, abut, accommodation, accompaniment, accord, accordance, aceldama, acknowledgment, acquiescence, acquire, action, activity, adaptation, adaption,… …   Moby Thesaurus

  • trim — verb (trims, trimming, trimmed) 1》 make (something) neat by cutting away irregular or unwanted parts.     ↘cut off (irregular or unwanted parts).     ↘reduce the size, amount, or number of. 2》 decorate (something), especially along its edges. 3》… …   English new terms dictionary

  • line trimmer — a gardening device used to trim the edges of lawns by means of a rapidly rotating motor driven flexible wire or cord. Also called string trimmer. * * * …   Universalium

  • line trimmer — a gardening device used to trim the edges of lawns by means of a rapidly rotating motor driven flexible wire or cord. Also called string trimmer …   Useful english dictionary

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