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Geography gcse unit 1
Question | Answer |
---|---|
Fold Mountain- formation | sedimentary rock, over time, is formed due to compression on the ocean beds. Collision plate boundary- the sediments between forced to collide and crumple upwards. |
Continental vs. Oceanic plates | Lighter,Less Denser,Older,Granite,Light(colour) Heavier,More dense,Younger,Basalt,Darker |
Earthquake eg. | Haiti & Japan,Kobe |
Shield vs. Composite volcanoes | Low-wide based cone,Gentle slopes, V.runny lava+thin,non violent eruptions,Frequent. Steep sides,Explosive,Less frequent,alternative layers of ash+lava. |
Constructive Plate Boundary | Plates move away from oneanother. Magma rises through gap, cools and creates new rock. Occurs again, layers solidify + build uo to form volcanoes. |
Fold Mountain- Case Study | Andes: Along w.coast of S/America next to the pacific ocean. *Mining,Farming,HEP, Tourism |
Fold Mountain eg | Andes & Himalyas |
Destructive Plate Boundary | Plates move towards eachother. Denser oceanic dives under continental. oceanic melts in subduction zone,due to friction pressure builds then is releases by an eruption of magma through crack in crust. |