Alternate Definitions for Terminal moraine

include archived terms
Term: Terminal moraine
Definition:
GCW
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary
Permalink:
https://n2t.net/ark:/99152/h8033
Term: Terminal moraine
Definition: A cross-valley, ridge-like accumulation of glacial sediment that forms at the farthest point reached by the terminus of an advancing glacier. Also called an End Moraine. Moraine that marks the maximum advance of a glacier.
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary
Permalink:
https://n2t.net/ark:/99152/h8034
Term: Terminal moraine
Definition: Terminal moraines are piles of loose unconsolidated rock at the glacier's downvalley end. The rocks may be pushed there by the forward motion of the glacier or dumped from the glacier's rounded surface. As glaciers melt, their remaining load of rocks is distributed in several ways. Rocks may be dropped in place by the melting ice; they may be rolled to the ice margins, or they may be deposited by meltwater streams. Collectively, these deposits are called 'glacial drift'. 'Till' refers to the debris deposited directly by the glacier. Rock debris rolls off the glacier edges and builds piles of loose unconsolidated rocks called 'glacier moraine'. 'Lateral moraines' form along the side of a glacier and curl into a 'terminal moraine' at the glacier's downvalley end. Drift and moraines are valuable to geologists because they outline the boundaries of past glaciations.
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary
Permalink:
https://n2t.net/ark:/99152/h8032