Plate Margins and Magma Plumes 0.0 / 5 ? GeographyNatural hazardsA2/A-levelAQA Created by: emily.txCreated on: 01-05-17 15:50 When plates diverge. New crust formed and can be in oceanic areas or continental areas Constructive 1 of 9 Plates converge. {Oceanic v Oceanic } {Oceanic v Continental} {Continental v Continental} Destructive 2 of 9 Plates move sideways past each other. Shallow focus earthquake Conservative 3 of 9 Created when the lithosphere stretches and causes fractures in sets of parallel faults Rift Valleys 4 of 9 Built by volcanic eruptions along the ridges, can grow to rise above sea level making volcanic islands Submarine Volcanoes 5 of 9 Rising column of hot rock usually at a plate margin creating a hot spot Magma Plume 6 of 9 Lithosphere sinks into the mantle helping pull the rest of the plate with it as a result of subduction Slab Pull 7 of 9 Higher elevation at a mid ocean ridge causes gravity to push the lithosphere that is further from the ridge Ridge Push 8 of 9 Movement of tectonic plates as a result of gravity Gravitational sliding 9 of 9
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