11-5-08 good notes

11-5-08 good notes - 11-5-081.2. Plate tectonics...

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Unformatted text preview: 11-5-081.2. Plate tectonics theory-scientific precept that yet to be proven wronga.The theory and evidencei.the earth's crust is broken up into plates, the plates are driven by the circulation of heat in the mantle below itii.Plates are moving inches a yeariii.Evidence1.Fit of the continents2.Similarity of Fossils3.Correspondence of ancient mountain ranges4.Similarity of glacial landformsa.Leaves it marks over material and scrapes it, and shows the flows of the glacier5.Sea floor topographya.The 1960'sb.Map the topography of the oceanc.Very structurally complex6.Magnetic reversals- Atlantic Ocean floorb.History of Pangaea breakupi.225 Million Years ago- Pangaeaii.Implications of Plate Break Up1.Changes in the connectivity among land massesa.Only in the last 5 million years did N. and S. America Connect2.Changes in continentality- less extreme temperatures now 3.Land at different latitudes- climate change4.Location of major earthquake zones and volcano activityc.Percussions1. Major Plates1....
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11-5-08 good notes - 11-5-081.2. Plate tectonics...

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