Terminal Moraine

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terminal moraine

[′tər·mən·əl mə′rān]
An end moraine that extends as an arcuate or crescentic ridge across a glacial valley; marks the farthest advance of a glacier. Also known as marginal moraine.

Terminal Moraine


(also frontal moraine), fragmental material deposited in the form of one or several arched ridges at the lower end of a valley glacier when the glacier was in a stationary position for a long period of time. It includes material from lateral moraines and ground, medial, and internal moraines. Depressions dividing individual ridges of the terminal moraine are frequently occupied by lakes. The outer ridge generally rises several dozen meters over the valley floor.

References in periodicals archive ?
The company is busy, the order book is full, production lines are churning the stuff out and the cleaning room looks like the terminal moraines of a glacier--plugged, blocked, choked and full to the roof.
Ages of glacier advances can be estimated by dating plant remains in lateral and terminal moraines, or by determining the age of trees or lichens growing on the moraines (Fig.