Plate Tectonics

Beschreibung

Leaving Cert Geography (Physical Geography) Mindmap am Plate Tectonics, erstellt von Tom Cahill am 27/10/2013.
Tom Cahill
Mindmap von Tom Cahill, aktualisiert more than 1 year ago
Tom Cahill
Erstellt von Tom Cahill vor etwa 12 Jahre
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Zusammenfassung der Ressource

Plate Tectonics
  1. lithosphere consists of large, rigid sections called plates
    1. Convection Currents
      1. Continental Drift
        1. Alfred Wegner
          1. rocks in N. America same as those in Irl. and Scot.
            1. Pangaea
          2. Convergent
            1. 2 plates collide
              1. heavier plate is subducted
              2. 2 Oceanic Plates
                1. long deep trench formed
                2. Oceanic Continental
                  1. uplift - fold mountains
                    1. Andres fold mts.
                3. Divergent
                  1. 2 plates separate
                    1. magma rises
                      1. cools on crust
                      2. Mid-Ocean ridge
                        1. Volcanic Island
                        2. Eurasian and N. American
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