A guyot started as an oceanic mountain. Whether due to rising tide, or to a short period of formation, it did not rise very far above the water.
As tides would strike the area above the surface of the water, they would remove materials and wash them back out into the ocean.
Because the force of a wave is significantly lessened even a few feet below the surface, the area of the mountain below the surface did not experience the extensive pummeling that the area above did. This disparity in erosion caused only the top part to erode away.
Eventually the entire top of the mountain was eroded away leaving a flattened top and, thusly, a guyot.
A guyot is a flat-topped sea mount
Unusual flat-topped seamounts in the ocean are called Guyots. Guyots are submerged volcanic mountains with a flat top that has been eroded by waves and currents over time.
Guyot
Yes, that is the definition of a guyot. Or perhaps limited to a 'mountain' until you know for certain that it was a volcano.
it means either a flat topped submarine mountain or a flat topped seamount.
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guyot
The flattened top of a guyot is primarily caused by erosion and wave action when the seamount is at or near sea level. Over time, as tectonic activity causes the seamount to sink below the ocean surface, the top becomes submerged, resulting in the characteristic flat shape. Additionally, the process of volcanic activity that forms guyots can also contribute to their flat tops, as the peaks are worn down by the ocean's currents and waves.
Guyot
We'd call the underwater geographic feature thus described a tablemount or guyot. It's a seamount, which is an underwater mountain, with a flat or platform top.
A guyot, also known as a tablemount, is a flat-topped seamount. It was named after the Swiss-American geographer and geologist Arnold Henry Guyot. The term was coined around 1946 by Harry Hammond Hess. Guyots are most commonly found in the Pacific Ocean.
An underwater mountain is known as a "guyot" or a flat topped underwater sea mount. They often do not show up on naval charts and submarines have accidentally run into them. The USS RAY (SSN-653) ran into a coral guyot in the Mediterranean Sea on 20 September 1977 and was severly damaged.