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An arête (/ əˈrɛt / ə-RET; French: [aʁɛt]) [1] is a narrow ridge of rock that separates two valleys. It is typically formed when two glaciers erode parallel U-shaped valleys.
Arête, (French: “ridge”), in geology, a sharp-crested serrate ridge separating the heads of opposing valleys (cirques) that formerly were occupied by Alpine glaciers. It has steep sides formed by the collapse of unsupported rock, undercut by continual freezing and thawing (glacial sapping; see.
An arête is a thin, jagged crest that separates—or that once separated—two adjacent glaciers. These rugged ridgelines often look like serrated knives or saw blades, with steep sides and a sharp crest.
Arêtes are thin, spiky land formed when two glaciers erode towards each other. It is a small ridge of rock that is formed between the two valleys created the glacial erosion and is formed when two glacial cirques are eroded towards one another.
Formation: An arête forms through glacial erosion by two valley glaciers, one on either side of the ridge. Example: The Carn Mor Dearg arête of Ben Nevis, Scotland 3.
Glaciers in adjacent tributary valleys scour away at the upland between them (an interfluve). As erosion of the interfluve continues, it is narrows into a serrated ridge known as an arête. As mountain glaciers flow down valley they encounter exposed bed rock of varying resistance to erosion.
For National 5 Geography study the formation of glaciated upland landscape features and the impact they have on land uses and land use conflict.
Arête Definition: A thin ridge of sharp rock that is usually formed between two melting glaciers. Arête landforms with pictures, images, examples, and characteristics of the arête mountain landform. Includes how they are formed, examples and definition.
Aretes are mountain (alpine) structures carved by glacial ice. To be more exact, they are carved by the continual action of cirques wearing away the tops of high elevation mountains. Consequently, it is necessary to understand the formation and erosional properties of cirques before the identification of an arete can occur.
Find out how corries and arêtes are formed by glacial erosion with this BBC Bitesize Scotland article for P5, P6, P7 - Second Level CfE.