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guyot, isolated submarine volcanic mountain with a flat summit more than 200 metres (660 feet) below sea level. Such flat tops may have diameters greater than 10 km (6 miles). (The term derives from the Swiss American geologist Arnold Henry Guyot.)
In marine geology, a guyot (/ ˈ ɡ iː. oʊ, ɡ iː ˈ oʊ /), [1] [2] also called a tablemount, is an isolated underwater volcanic mountain with a flat top more than 200 m (660 ft) below the surface of the sea. [3]
Scientific career. In 1838, at Agassiz's suggestion, he visited the Swiss glaciers and communicated the results of his six-week investigation to the Geological Society of France. He was the first to point out certain important observations relating to glacial motion and structure.
By examining the distribution, age, and geological features of guyots, scientists can reconstruct past oceanic environments, understand how ocean basins have changed over millions of years, and better grasp the processes driving Earth's geological activity.
24 wrz 2024 · Arnold Henry Guyot was a Swiss-born American geologist, geographer, and educator whose extensive meteorological observations led to the founding of the U.S. Weather Bureau. The guyot, a flat-topped volcanic peak rising from the ocean floor, is named after him. He studied at the College of Neuchâtel.
21 gru 2023 · The discovery of guyots helped scientists affirm the validity of the tectonic plate movement theory. The fossils and other data from these underwater volcanoes have helped researchers understand the violent but essential nature of tectonic plate movements.
The first is the “death-by-emergence-and-submergence” hypothesis that postulates that guyots are drowned reefs. Regional tectonic and eustatic (sea level) changes cause a temporary emergence of the reef above sea level followed by a rapid relative rise in sea level to drown the reef.
