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Sea-Floor Spreading
Introduction ,[object Object]
Mapping the mid-ocean ridge ,[object Object],[object Object],[object Object]
Sonar ,[object Object],[object Object]
Harry Hess ,[object Object],[object Object]
[object Object]
Sea-floor spreading ,[object Object],[object Object]
Evidence #1 - Molten Material ,[object Object]
Evidence #2 - Magnetic Stripes ,[object Object]
Evidence #3 - Drilling Samples ,[object Object]
Subduction  at Deep-Ocean Trenches ,[object Object],[object Object],[object Object]
Subduction ,[object Object],[object Object],[object Object]
Subduction in the Pacific & Atlantic ,[object Object],[object Object]
 

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Sea floor spreading2