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David

Darling

guyot

The Bear Seamount (left), a guyot in the northern Atlantic Ocean

The Bear Seamount (left), a guyot in the northern Atlantic Ocean


A guyot is submarine table-mountain, found especially in the Pacific. It is thought that guyots originate as volcanic islands associated with mid-ocean ridges. They rise approximately 1,000 meters (3,300 feet), with tops about 2.5 kilometers (1.5 miles) below sea level. Wave erosion reduces the island, and sea-floor spreading causes the guyot to be further submerged.