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Download process of forming new oceanic crust from magma rising to the
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Transcript
Sea Floor Spreading Notes Key Term Mid-Ocean Ridge Sea-Floor Spreading Deep Ocean Trench Definition Illustration largest mountain chain -ocean floor process of forming new oceanic crust from magma rising to the surface huge cracks in the ocean floor where a plate is pushed under another plate process of oceanic plates being pushed under another plate and older rock is melted back into magma - Subduction At what landform does sea-floor spreading occur? ______Mid ocean Ridge ___________________________________________________________ At what landform does subduction occur? _____Deep Ocean Trench_______________________________________________________ What happens to the plates that are subducted? __pushed into the mantle where it melts into magma ____________________________________ Which process adds new crust to the surface? ______Sea Floor Spreading____________________________________________________ ___________________________________________________________
