Discuss the different erosional features formed by alpine glaciers. Describe the processes by which glaciers change the underlying rocks. Discuss the particles deposited by glaciers as they advance and recede. Describe the landforms created by glacial deposits.

Simply put, glacial erosion is the curving and shaping of the land beneath a moving glacier. There are two main processes of glacial erosion. The first one is plucking, which is defined as the erosion and transport of large chunks of rocks.

How does a glacier change that shape and what does it become? What two different features form as smaller side glaciers join the central main glacier? How do glaciers erode the surrounding rocks? Name the erosional features that are formed by glaciers high in the mountains and describe how they form.

Some of the important features visible in Figure 16.22 are arêtes: sharp ridges between U-shaped glacial valleys; cols: low points along arêtes that constitute passes between glacial valleys; horns: steep peaks that have been glacially and freeze-thaw eroded on three or more sides; cirques: bowl-shaped basins that form at the head of a ...

2021年12月26日 · It’s generally agreed that there are two kinds of erosional activity of glaciers: abrasion and plucking (also called quarrying). These affect bedrock on different scales (although there are intergradations). For each, I’ll discuss evidence and possible mechanisms.

2024年4月24日 · Some of the important features visible are arêtes: sharp ridges between U-shaped glacial valleys; cols: low points along arêtes that constitute passes between glacial valleys; horns: steep peaks that have been glacially and freeze-thaw eroded on three or more sides; cirques: bowl-shaped basins that form at the head of a glacial valley ...

Some of the important features visible in Figure 16.22 are arêtes: sharp ridges between U-shaped glacial valleys; cols: low points along arêtes that constitute passes between glacial valleys; horns: steep peaks that have been glacially and freeze-thaw eroded on three or more sides; cirques: bowl-shaped basins that form at the head of a ...

The results of glacial erosion are different in areas with continental glaciation versus alpine glaciation. Continental Glacial Erosion Features. Continental glaciation tends to produce relatively flat bedrock surfaces, especially where the rock beneath is uniform in strength.

2014年1月1日 · The wide range of easily recognized landscape features produced by the action of glaciers and ice sheets include many classic landforms produced by glacial erosion, including U-shaped valleys, cirques, arêtes, roches moutoneés, hanging valleys, striations, glacial polish, rock steps, fjords, and glacial grooves.

2024年1月11日 · Glacial erosion is a geological process driven by the movement of massive ice masses, known as glaciers, which play a crucial role as natural erosive agents. These glaciers form in regions where the accumulation of winter snow consistently exceeds the amount that melts during the summer.