02:41
Over the Edge: Undersea Volcanic and Tectonic Activity
For large stretches the deep ocean basin is flat. But seamounts, guyots, island arcs and trenches, all of which result at least in part from tectonic
Subject: guyot
Transcript: continental volcanoes, With slopes of maybe about 30 degrees or so, But several thousand feet tall. A guyot in contrast To a seamount is a flat-topped seamount
02:56
World in Motion: Seamounts, Guyots and Island Arcs
Seamounts, guyots and island arcs form on the ocean floor as a result of a hot spot or mantle plume. While seamounts do not extend above the ocean
Subject: guyot
Transcript: material, That forms those large volcanoes there. [narrator:] a variation on the same theme is the guyot, which is tall enough to be eroded by wave activity