Construct · 1 fields · 1 citations

moraine: a standalone construct

One name. One construct. A landmark on the map.

● anchor · rubble a glacier gathers and leaves behind Nearest construct by meaning·not indexed
moraine1 CONSTRUCTMoraineEVANS · MORAINE GENESIS

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Glacial geomorphology

Debris a glacier carries and dumps as it melts

In glacial geomorphology, a moraine is an accumulation of unsorted rock debris (till) that a glacier erodes, transports, and deposits, left as a ridge or sheet that records where the ice stood or how it moved. Moraines are classed by position and origin (terminal and recessional moraines mark former ice margins, lateral and medial moraines flank or run down a glacier, and ground moraine blankets the bed), so their form and distribution let geologists reconstruct past glacier extent and retreat, as Evans's 2013 treatment of moraine forms and genesis describes. The referent is a landform built of glacial sediment, characterised by its shape, internal till, and position relative to the ice that made it.[1]

Unit
The form, sediment, and position of a glacially deposited debris landform
Recovery means
Not applicable
Measured by
Characterised by landform mapping and morphometry, till sedimentology and clast analysis, and dating used to reconstruct former ice margins

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Nearby constructs

accumulation3 fields · 3 citationsjingle · one word, three constructsdistribution2 fields · 2 citationsjingle · one word, two constructs

References

  1. Evans, D. J. A. (2013). Glacial landforms: Moraine forms and genesis. In Encyclopedia of Quaternary Science (2nd ed., pp. 769–779). Elsevier. https://doi.org/10.1016/b978-0-444-53643-3.00073-x

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