Guyot

A guyot is a submerged, flat-topped seamount or underwater mountain formed by volcanic activity. Over time, erosion from waves and weathering levels the summit, creating a with a relatively flat top. Typically found in deep ocean areas, these structures can be thousands of meters tall but are now underwater, often serving as habitats for marine life. The flat top indicates it was once above sea level, eroding over time, and offers clues about Earth's geological history and volcanic processes.