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Fjords: Glacial valleys/ troughs filled with ocean water

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Presentation on theme: "Fjords: Glacial valleys/ troughs filled with ocean water"— Presentation transcript:

1 Ribbon/Finger Lakes: Lake caused by glaciers carving deep grooves in less resistant rock
Fjords: Glacial valleys/ troughs filled with ocean water Kettle Lakes: Depression formed after an isolated block of ice melts.

2 Erosional Features: Finger Lakes

3 Erosional Features: Fjords

4 Erosional Features: Kettle Lakes

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6 Depositional Features
Lateral Moraine: Till collected on valley sides by rock falls and plucking off valley walls. Medial Moraine: Formed by meeting of lateral moraines as two glaciers meet Terminal/End Moraine: Deposited at the furthest point of glacial advance.

7 Depositional Features: Moraines

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10 An esker is a snake-shaped deposit of till, formed when running water flows through paths along the bottom of a glacier Crevasses are deep cracks in the surface of a glacier. They can be extremely dangerous to anyone walking on a glacier An icefall is when huge blocks of ice fall off the sides of a glacier

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12 Features of Continental Glaciers
Outwash Plains/ Lacustrine Deposits: Sand and other sediment deposited by glacial melting. Erratics are large boulders that are left in odd locations when glaciers melt A roche moutonee is formed when a glacier moves over outcrops of bedrock. The side facing the glacier is polished smooth, while the other side is jagged from plucking

13 Depositional Features: Outwash Plains

14 Drumlin: Hill made up of deposits from glaciers movement.
Continental glaciers produce many similar features to alpine glacier, such as U-shaped valleys and hanging valleys

15 Benefits of glaciers Glaciers left behind much of our fresh water, in the form of lakes Glaciers created the wide u-shaped valleys in which many people live (especially in BC) Many gravel and sand deposits come from glacial drift Glacial deposits provide rich soil in many areas


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