What is the name for the process in which a glacier flows over the land and picks up rocks?

What is the name for the process in which a glacier flows over the land and picks up rocks?

plucking
Like flowing water, flowing ice erodes the land and deposits the material elsewhere. Glaciers cause erosion in two main ways: plucking and abrasion. Plucking is the process by which rocks and other sediments are picked up by a glacier. They freeze to the bottom of the glacier and are carried away by the flowing ice.

What is the process of glacier offload rock & Soil referred to as?

Glacial deposition occurs when glaciers retreat, leaving behind rocks and soil known as till.

What is the process by which a glacier loosens and moves rocks?

Glaciers erode the underlying rock by abrasion and plucking. Glacial meltwater seeps into cracks of the underlying rock, the water freezes and pushes pieces of rock outward. The rock is then plucked out and carried away by the flowing ice of the moving glacier (Figure below).

What is a ridge of till located at the farthest point reached by a glacier called?

terminal moraine. A ridge of till located at the farthest point reached by a glacier.

What is required for a glacier to form?

Three conditions are necessary to form a glacier: (1) Cold local climate (polar latitudes or high elevation). (2) snow must be abundant; more snow must fall than melts, and (3) snow must not be removed by avalanches or wind.

What are glacial striations What do they tell about a glacier?

Glacial striations or striae are scratches or gouges cut into bedrock by glacial abrasion. As well as indicating the direction of flow of the glacial ice, the depth and extent of weathering of the striations may be used to estimate the duration of post-glacier exposure of the rock.

When a chunk of ice is left behind by a receding glacier is called?

A kettle lake occurs where a chunk of ice was left behind in the till of a retreating glacier. When the ice melted, it left a depression. The meltwater filled it to form a lake. You can see examples of kettle lakes below (Figure below).

What are glaciers What is the reason for their slow movement?

The sheer weight of a thick layer of ice, or the force of gravity on the ice mass, causes glaciers to flow very slowly. Ice is a soft material, in comparison to rock, and is much more easily deformed by this relentless pressure of its own weight.

What is required for a glacier to form quizlet?

What conditions are necessary for formation of a glacier? For a glacier to form, temperatures must be low enough to keep snow on the ground year-round. Further, moisture is required – brought by moisture-laden winds. Also, a lot of snow is needed – snow that does not melt away in the summer.