FAQ

what landforms would you expect to see in the diagram after the glaciers melted completely away?

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Which types of features would you find in a glacially eroded landscape?

U-shaped valleys, hanging valleys, cirques, horns, and aretes are features sculpted by ice. The eroded material is later deposited as large glacial erratics, in moraines, stratified drift, outwash plains, and drumlins. Varves are a very useful yearly deposit that forms in glacial lakes.

What name is given to a body of water that formed from the melting of blocks of ice trapped in glacial sediment quizlet?

Kettle Lake Formation: A portion of glacial ice is buried in glacial sediment-as it melts it leaves a hole0sediment collapses into the hole and leaves a depression. Some have lakes in them like Walden Pond. Distinguish between stratified drift and glacial till and identify features made of till or stratified drift.

When glacial ice flows from land to sea what happens to sea level quizlet?

– Water is stored on land during an ice age; sea level falls. – Deglaciation returns water to the oceans; sea level rises. – Sea level was ~100 m lower during the last ice age.

What happens to snowflakes as they become progressively buried within glaciers?

What happens to snowflakes as they become progressively buried within glaciers? They become interlocking crystals of ice. … Large blocks of ice collapse off the front of the glacier and become icebergs.

Which landform is not formed by erosional work of glacier?

Hanging Valleys or U-shaped Valleys, Fjords/fiords

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The Glacier doesn’t create a new valley like a river does but deepens and widens a pre-existing valley by smoothening away the irregularities.

Which one of the following landforms is a depositional landform of a glacier?

Depositional landforms by glaciers are Moraines, drumlins, eskers, and outwash plains. A moraine is a major depositional landform that is commonly found in gentle slopes. Drumlin is formed when glacial till along with some gravel and sand is deposited as a hill-like structure that resembles an inverted spoon.

What are visible effects of glacial erosion quizlet?

What are visible effects of glacial erosion? –Generation of erosional landforms. -Grooves parallel to the direction of the glacier’s movement on the surface of the bedrock. -Polished rock on the surface of the bedrock.

What is a piedmont glacier quizlet?

Piedmont glacier. glaciers that occupy broad lowlands at the base of steep mountains formed as valley glaciers emerge from confining glacial troughs of mountains.

What is the most immediate and visible evidence that a valley has been occupied by a glacier?

Grains of rock embedded in the ice grind against the bedrock. What is the most immediate and visible evidence that a valley has been occupied by a glacier? The valley is quite straight with a broad bottom, and is U shaped. … Weight of ice sheets depresses the crust; after melting, crust rebounds and rises.

What happens when glaciers melt quizlet?

formed when ice at the bottom of a glacier melts and drops till over a large area. whenever the ice front stays in one place for a long time and the melting of ice causes deposits to form. … bowl-shaped hollows in deposits of glacial outwash formed by the melting of large blocks of ice left behind by a glacier.

How is sea level related to glaciation quizlet?

When more water frozen as glacial ice (e.g. last ice age up to about 18,000 years ago ) sea level lower by ~100 m. With melting, sea level has risen.

How is a glacier formed quizlet?

Where and how do glaciers form? Glaciers form in places where more snow falls than melts or sublimates. As the layers of snow pile up, the weight on the underlying snow increases. Eventually, this weight packs the snow so tightly that glacial ice is formed.

What feature will be formed by the sediment carried along the sides of this glacier?

A moraine is material left behind by a moving glacier. This material is usually soil and rock. Just as rivers carry along all sorts of debris and silt that eventually builds up to form deltas, glaciers transport all sorts of dirt and boulders that build up to form moraines.

What happens on the other side of the equilibrium line in a glacier quizlet?

What happens on either side of the equilibrium line in a glacier? Above the equilibrium line, the amount of accumulation exceeds the amount lost by various processes. … Large blocks of ice collapse off the front of the glacier and become icebergs.

What happens when a glacier encounters the sea or a lake?

What happens when a glacier encounters the sea or a lake? Large blocks of ice collapse off the front of the glacier and become icebergs. … As snowflakes are buried and compressed, eventually becoming crystalline ice.

What landforms are caused by glaciers?

Glacier Landforms
  • U-Shaped Valleys, Fjords, and Hanging Valleys. Glaciers carve a set of distinctive, steep-walled, flat-bottomed valleys. …
  • Cirques. …
  • Nunataks, Arêtes, and Horns. …
  • Lateral and Medial Moraines. …
  • Terminal and Recessional Moraines. …
  • Glacial Till and Glacial Flour. …
  • Glacial Erratics. …
  • Glacial Striations.
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What is a glacier which landforms are formed by the 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 landforms are created by glacial erosion and deposition?

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.

Which are the depositional landforms?

The major deposition landforms are beaches, spits and bars. Deposition occurs when wave velocities slow, or when ocean currents slow due to encountering frictional forces such as the sea bed, other counter currents and vegetation.

Which among the following landforms is a depositional feature?

Depositional landforms are the visible evidence of processes that have deposited sediments or rocks after they were transported by flowing ice or water, wind or gravity. Examples include beaches, deltas, glacial moraines, sand dunes and salt domes.

Which of the following is a depositional landform created by glaciation?

Moraine: accumulation of rock debris previously carried by an alpine glacier or an ice sheet and deposited by the ice to become a depositional landform.

What are visible effects of glacial erosion?

Visible effects of glacial erosion include glacial striations, glacially polished rocks, the presence of glacial erratics, and the sediment deposited at a glacier’s terminus.

What will happen to the land surface when ice sheets melt quizlet?

What will happen to the land surface and lithosphere when the ice sheet melts? It will rise. … The average difference in sea level between ice ages and interglacial periods has been about ____________.

Which part of the glacier will see the buildup of ice and snow over the course of a full year?

28 Cards in this Set
Compared with the amount of ice that existed during the last glacial maximum, how much exists today? 1/3 as much
Which part of a glacier will see the build-up of ice and snow over the course of a full year? Zone of accumulation

Which process occurs where a glacier enters the sea?

Calving. The process by which pieces of ice break away from the terminus of a glacier that ends in a body of water or from the edge of a floating ice shelf that ends in the ocean. Once they enter the water, the pieces are called icebergs.

How do fjords relate to glacial troughs?

How do fjords relate to glacial troughs? Fjords are glacial troughs that became submerged as the ice left the valleys and the sea levels rose. … Outwash deposits are deposited by meltwater streams beyond the terminus of a glacier, whereas ice-contact deposits accumulate on, within, or immediately adjacent to a glacier.

Which of the following responses best defines the movement of ice with a glacier?

Which of the following responses best defines the movement of ice within a glacier? Glacial movement is always in a downslope direction. The terminus of a glacier will advance when which of the following conditions is met? Accumulation of snow is greater than wastage.

What is the most immediate and visible evidence that a valley has been occupied by a glacier quizlet?

What is the most immediate and visible evidence that a valley has been occupied by a glacier? The valley is quite straight with a broad bottom, and is U shaped. What happens at the base of a glacier? The ice slides over bedrock on a thin film of meltwater.

What formed this valley’s distinctive U shape quizlet?

What formed this valley’s distinctive “U” shape? Glaciers acquire sediment through plucking from the bedrock beneath the glacier. Arêtes, horns, and U-shaped valleys are depositional features made of till.

What are features caused by erosion by alpine glaciers?

U-shaped valleys, hanging valleys, cirques, horns, and aretes are features sculpted by ice. The eroded material is later deposited as large glacial erratics, in moraines, stratified drift, outwash plains, and drumlins.

What happens to sea level when glaciers melt?

When this ice melts or calves off, the water flows into the oceans and sea levels rise. If all glaciers and ice sheets melted, global sea level would rise by more than 195 feet (60 meters).

How do glaciers affect the landscape quizlet?

How do glaciers affect landscape? Erosion, deposition, transportation. A glaciers weight and movement can drastically reshape landscape. The ice erodes the land surface and carries the broken rocks and soil debris far from their original places, resulting in some interesting glacial land forms.

How and why do glaciers form and advance quizlet?

Advance: when the amount of accumulation is greater than the amount of ablation, the upper end of the glacier gains mass and causes the entire mass to move downhill faster than before. … Fluvial valleys usually form into a V-shape, whereas glacial valleys form U-shapes.

When glacial ice flows from land to sea what happens to sea level quizlet?

– Water is stored on land during an ice age; sea level falls. – Deglaciation returns water to the oceans; sea level rises. – Sea level was ~100 m lower during the last ice age.

How do glaciers shape the landscape? Animation from geog.1 Kerboodle.

BBC Geography – Glaciers

All About Glaciers for Kids: How Glaciers Form and Erode to Create Landforms – FreeSchool

Landforms made by Glacial Erosion

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