Transcription of Geologic Timeline - CBC.ca
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Geologic Journey Teacher Resource Guide CBC Learning 0002 0003 0004 0004 600 Great LakesGreat LakesGreat LakesGreat LakesGreat LakesGreat LakesGreat LakesAppalachiansAppalachiansAppalachian sAppalachiansRockiesRockiesRockiesCanadi an ShieldCanadian ShieldCanadian ShieldCanadian ShieldCanadian ShieldCanadian ShieldAtlantic CoastAtlantic CoastAtlantic CoastCanadian ShieldAtlantic Coast12 00014 0002 000 000after 2 000 000180 000 00058 000 000350 000 000300 000 000400 000 000200 000 000485 000 000500 000 000560 000 000600 000 000500 000 0001 200 000 000 to1 000 000 0004 500 000 0001 300 000 0004 000 000 0002 000 000 0001 800 000 00065 000 0002 700 000 0003 800 000 000 toto 3 300 000 000400 000 000 Niagara Falls starts to wear back EscarpmentIce starts to melt from most recent glaciationMost recent glaciation periods startsGlacial erosion of Great Lakes basinsBeginning of the form
Geologic Journey Teacher Resource Guide · © CBC Learning · www.cbc.ca/geologic/teacher.html Figure 4.8 – Geologic Timeline 0 1.8 2.3 65 …
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