What are the erosional features of glacier?
What are the erosional features of glacier?
As the glaciers expand, due to their accumulating weight of snow and ice they crush and abrade and scour surfaces such as rocks and bedrock. The resulting erosional landforms include striations, cirques, glacial horns, arêtes, trim lines, U-shaped valleys, roches moutonnées, overdeepenings and hanging valleys.
What are features of valley glaciers?
Valley glaciers sometimes flow through narrow inlets (fjords) into the ocean. They over-steepen the walls around them, as they do when carving u-shaped valleys. Thus, fjords have tall, steep walls like glacial valleys, but their floors are below sea level and thus are inundated with ocean water.
What are three features that are formed by valley glacier erosion?
U-Shaped Valleys, Fjords, and Hanging Valleys Glaciers carve a set of distinctive, steep-walled, flat-bottomed valleys. U-shaped valleys, fjords, and hanging valleys are examples of the kinds of valleys glaciers can erode.
What features are typically produced by continental glaciation?
Continental Glacial Erosion Features Glacial deposits have created distinctive topographic features on the landscapes in these regions — such as drumlins, eskers, and moraines (Figure 17.16). These continental glacial features are deposits of glacial materials and are described further in Section 17.3.
What is an erosional feature?
Definition: A land surface shaped by the action of erosion, especially by running water.
What are erosional and depositional features?
Landforms created because of erosion are called erosional landforms and landforms created because of deposition are called depositional landforms. Erosional landforms: Valleys, potholes, entrenched Meanders and river Terraces. Depositional landforms: Alluvial Fans, deltas, meanders and braided channels.
What is the difference between a valley glacier and a continental glacier?
Answer: Continental glaciers flow in all directions as they move, while valley glaciers move down slopes already cut by rivers. Valley glaciers cover much of a continent, while continental glaciers cover a small area of mountains.
What are continental glaciers?
Definition of continental glacier : an ice sheet covering a considerable part of a continent — compare oceanity.
How does erosion by continental glaciers differ from erosion by valley glaciers?
Lesson Summary Continental glaciers are huge. They may spread out over much of a continent. Valley glaciers are long and narrow. They form in mountains and flow through mountain river valleys.
What are glaciers describe an erosional and depositional features caused by glaciers?
Glaciers cause erosion by plucking and abrasion. Valley glaciers form several unique features through erosion, including cirques, arêtes, and horns. Glaciers deposit their sediment when they melt. Landforms deposited by glaciers include drumlins, kettle lakes, and eskers.
What are the different types of glacial erosion?
Processes of Glacial Erosion Glacial erosion involves the removal and transport of bedrock or sediment by three main processes: quarrying (also known as plucking), abrasion, and melt water erosion.
How do glaciers cause erosion?
As glaciers spread out over the surface of the land, (grow), they can change the shape of the land. They scrape away at the surface of the land, erode rock and sediment, carry it from one place to another, and leave it somewhere else. Thus, glaciers cause both erosional and depositional landforms.