1. GLACIERS
Moving mass of ice
Accumulate from snow crystallizing

2. Types of Glaciers
Alpine/Valley Glaciers
Continental Glaciers

3. Alpine/Valley Glaciers
Built up snow and ice in mountain valleys

4. Alpine/Valley Glacier

5. Yosemite Valley, Ca……..Before glaciers

6. Yosemite Valley, Ca……..Before glaciers

7. Alpine Glacier Features
Arête – a thin crest of rock left after two adjacent glaciers have worn a long sharp ridge into the rock
Horn – 3 or more arêtes forming a sharp peak.
Moraine (Medial, Lateral, Terminal) – accumulation of rock and soil at the edges of a glacier.
Cirque – bowl-shaped depression left over from a glacier.
Fiord - where glaciers meet an ocean or sea.
Tarn – a mountain lake or pool formed from a glacier. Found usually inside a cirque.
Hanging Valley – Steep valley eroded by a large glacier
Striations – abrasion and gouges left on rocks associated with glaciers moving over the rock.

9. Yosemite, CA

10. Fiords in AK…Where glaciers meet the sea

12. Glacial Features
U-Shaped Valleys created from movement

15. Continental Glaciers
Covers large areas of land (Greenland and Antarctica)
Cover 10% of Earth and represent 2% of Earth’s water supply