What are the types of moraines?
Moraines are divided into four main categories: lateral moraines, medial moraines, supraglacial moraines, and terminal moraines. A lateral moraine forms along the sides of a glacier.
Is Cirque erosion or 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.
How do you make a glacier?
Mix the food coloring and water with a spoon or by shaking the cup gently without spilling it. Fill the cup the rest of the way with sand, gravel or dirt. Mix the contents with a spoon. Place the cup in the freezer overnight; the mixture of water, food dye and dirt will turn into a glacier.
How would you describe a glacier?
A glacier is a large, perennial accumulation of crystalline ice, snow, rock, sediment, and often liquid water that originates on land and moves down slope under the influence of its own weight and gravity.
Is Moraine a result of erosion or deposition?
A lateral moraine consists of debris derived by erosion and avalanche from the valley wall onto the edge of a glacier and ultimately deposited as an elongate ridge when the glacier recedes.
What causes the movement of rocks down a slope?
Mass Wasting: the movement of loose rock material down a slope, due to the force of gravity. Mechanical Weathering: the breaking down of rocks and minerals into smaller loose pieces, without altering the chemical makeup of the material. Permafrost: soil that remains permanently frozen.
How are boulders formed in the permafrost?
The downward slope of the region combined with the melting permafrost underneath resulted in the movement of the rocks downward, or mass wasting, to create Boulder Field.
How are rocks formed in a boulder field?
The water would freeze and expand, causing the rocks to crack. This process is known as mechanical weathering. The downward slope of the region combined with the melting permafrost underneath resulted in the movement of the rocks downward, or mass wasting, to create Boulder Field.
What causes ice cubes to form into boulders?
The icing represents the rainwater or melted ice that seeped into the bedrock. The gelatin cube or “bedrock” will begin to crack, due to the pressure of the icing expanding or “water freezing,” creating smaller gelatin pieces or “boulders”.