Tectonics 1

Descrição

AS level Geography Mapa Mental sobre Tectonics 1, criado por Dana Davies em 08-04-2017.
Dana Davies
Mapa Mental por Dana Davies, atualizado more than 1 year ago
Dana Davies
Criado por Dana Davies mais de 7 anos atrás
8
0

Resumo de Recurso

Tectonics 1
  1. 1912: Alfred Wegener proposed Pangaea (continental drift)
    1. geological, climatological and biological evidence
      1. Africa and South America fit together
        1. similar fossil remains on each continent
          1. coal reserves in antartica
          2. which split into Gondwanaland and Laurasia
          3. Composition of the Earth
            1. Crust
              1. Oceanic
                1. heavier, denser, younger, non-permanent
                  1. e.g Basalt
                2. Continental
                  1. older, lighter, permanent
                    1. e.g Granite
                3. Mantle
                  1. Nickel and Iron
                    1. 3,000km
                      1. 1,000 degrees
                      2. Outer Core
                        1. Nickel and Iron
                          1. Liquid = heat
                          2. Inner Core
                            1. Nickel and Iron
                              1. Solid = pressure
                            2. Convection currents
                              1. 1000 degrees + mantle rocks are heated
                                1. Rise up to cool surface
                                  1. They cool, go sideways and back down
                                2. Ridge push
                                  1. Plates at spreading centres
                                    1. Hot material spews through gaps
                                      1. ridge formation
                                        1. as gravity pulls it down so more material flows out
                                        2. elevated temp lowes density so it rises in the mantle
                                    2. Slab Pull
                                      1. Plates at subduction zones
                                        1. lower temp makes plate denser than mantle
                                          1. the crust is pulled (subducted) into the mantle

                                    Semelhante

                                    Geography Quiz
                                    PatrickNoonan
                                    Geography Coastal Zones Flashcards
                                    Zakiya Tabassum
                                    Using GoConqr to study geography
                                    Sarah Egan
                                    All the Countries of the World and their Capital Cities
                                    PatrickNoonan
                                    Tectonic Hazards flashcards
                                    katiehumphrey
                                    Volcanoes
                                    1jdjdjd1
                                    River Processes and Landforms
                                    1jdjdjd1
                                    GCSE Geography - Causes of Climate Change
                                    Beth Coiley
                                    The Rock Cycle
                                    eimearkelly3
                                    Plate Tectonics
                                    eimearkelly3
                                    Characteristics and Climate of a hot desert
                                    Adam Collinge