A flat-topped, extinct submarine volcano having an elevation of over 1,000 m (3,280 ft) above the ocean floor. Guyots are thought to form as volcanos in sea-floor spreading zones and to become extinct as they move away from the spreading zones through plate tectonic forces. Their flat tops are believed to form by the erosional action of waves when they initially project above sea level.
A flat-topped submarine mountain.
A flat-topped, steeply rising seamount; tablemount.
Other Word Forms
Origin of guyot
- After Arnold Henri Guyot (1807–1884), Swiss-born American geologist and geographer
From American Heritage Dictionary of the English Language, 5th Edition
- Named for Swiss geologist Arnold Henry Guyot (1807-1884); coined by Harry Hammond Hess c. 1965.