When Traveling From On The Atlantic Ocean

When traveling from on the atlantic ocean and taking samples of water depth seeing the elevation change how can I explain the plate tectonic process that form the elevated region of the seafloor?

Originally posted 2018-07-15 01:53:17. Republished by Blog Post Promoter

When traveling from on the atlantic ocean

Question
When traveling from on the atlantic ocean and taking samples of water depth seeing the elevation change how can I explain the plate tectonic process that form the elevated region of the seafloor?