GEO- GLACIERS

eroded debris dropped at the glacier’s farthest extent is called ( ) moraine

terminal

A long narrow sinuous ridge of a glacial sediments located in a till plain is known as a

esker

What line divides a glacier’s accumulation and abalation zones?

Equilibrium line

How does glacial mass balance and differ above and below the equilibrium line?

Accumulation is a mass gain which is above. Abalation is below and it loses mass.

Describe four landforms that result from glacial erosion

Aretes, u shaped valleys , hanging valleys, and glacial erractics

Describe four depositional features on a glacial till plain

moraines, boulders, Erratics, kames

An extensive continuous mass of ice covering a continental scale area is known as a

Ice sheet

What causes glacial retreat

Wastage exceeds accumulation

what is a cirque

bowl-shaped depressions near the top of a mountain, carved out by the accumulating snowfield

What is a horn

peak surrounded by cirques

Hanging valleys

carved by tributary glaciers, and stranded high above the main valley floors

Tarn

Alpine glacial lake

glacial erractics

boulders which were carried long distances by glaciers

Arete

Ridges between cirques or glacial valleys

how do glaciers ablate?

melting due to friction and warm air temperature

glaciers

masses of ice that flow under the force of gravity (rivers of ice)