Presentation on theme: "1. 4. Understand how. moving ice acts as an. agent of erosion and"— Presentation transcript:
1 1. 4. Understand how. moving ice acts as an. agent of erosion and 1.4 Understand how moving ice acts as an agent of erosion and deposition. (Chap. 2)There are two types of glaciation.Continental GlaciationAlpine Glaciation
2 Distinguish between the terms alpine glaciation and continental glaciation. (P.32)
3 Continental Glaciation Continental glaciers cover parts of continental land masses; ex Greenland
8 Similarities Differences Distinguish between the terms alpine glaciation and continental glaciation. (P.32)SimilaritiesBoth move and cause erosionBoth change the landscapeBoth developed in constantly cold < 0 0CDifferencesLocationAlpine = mountainContinental = earth polesSizeAlpine = smallerContinental = larger
9 Define the terms outwash plain, terminal moraine, erratics, drumlins & eskers. (P. 33 Q.12) These features are associated with continental glaciation.See picture p. 34
10 Outwash plain Similar to a river delta Melt water flowing from the glacier deposits siltDeposited in layersSmall particles carried further awayLarger particles drop closer to the glacierOutwash plain
29 Continental…Esker Drumlins Terminal Moraine Esker Outwash Plain Erratic
30 Examine evidence for the direction of movement of glaciers. (P Examine evidence for the direction of movement of glaciers. (P. 34 question # 13)Sloped end of drumlinLocation of terminal moraineWhat is direction of glacier movement in this picture?
46 Hanging ValleyA high level tributary valley from which the ground falls sharply to the level of the lower, main valley.The depth of the lower valley is due to more severe glaciation.Most noticeable once glacier has melted!
49 Hanging Valley in Newfoundland Hanging Valley in Gros Morne National park .Trout River pond
50 Lateral MoraineMoraine means 'rock waste'.It is also known as glacial tillLateral Moraine is the land-form deposited at the side of a glacierDebris/waste rock drops off the side of the mountain as the glacier moves forming a ridge of debris at the outer-sides of the glacier.