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Darwin Guyot is a volcanic underwater mountain top, or guyot, in the Mid-Pacific Mountains between the Marshall Islands and Hawaii.Named after Charles Darwin, it rose above sea level more than 118 million years ago during the early Cretaceous period to become an atoll, developed rudist reefs, and then drowned, perhaps as a consequence of sea level rise.
Once a seamount is 600 m (2,000 ft) or more under the surface, it is also classed as a guyot. [ failed verification ] [ 1 ] This list documents the most significant volcanoes in the chain, ordered by distance from the hotspot, but there are many others that have yet to be properly studied.
The Bear Seamount (left), a guyot in the northern Atlantic Ocean. 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] The diameters of these flat summits can exceed 10 km (6 mi). [3]
Bathymetry of Ita Mai Tai Guyot. The smaller guyot in the lower left corner is Gelendzhik Guyot. The smaller guyot in the lower left corner is Gelendzhik Guyot. 12°54′N 156°54′E / 12.9°N 156.9°E / 12.9; 156.9 [ 1 ] Ita Mai Tai is a Cretaceous -early Cenozoic seamount northwest of the Marshall Islands and north of Micronesia
Jingū Seamount, also called Jingū Guyot, is a guyot of the Hawaiian-Emperor seamount chain in the Pacific Ocean. It erupted 55 million years ago. It erupted 55 million years ago. The seamount is elongated in structure, running north–south, and has an oval shaped crater in the center, which is evidence of collapse when above sea level.
Koko Guyot is a 48.1-million-year-old guyot, [3] a type of underwater volcano with a flat top, which lies near the southern end of the Emperor seamounts, about 200 km (124 mi) north of the "bend" in the volcanic Hawaiian-Emperor seamount chain. [5]
Cape Johnson Guyot is also known as Cape Johnson Seamount or Cape Johnson Tablemount. [2] The guyot was named by Harry Hammond Hess, after his ship the USS Cape Johnson; Hess had also named the kind of flat-topped seamount "guyot" and another seamount was named after Hess himself. [3] The seamount was first described in a 1946 publication. [4]
Description: Drawing of the Cippus of Melqart in the 1753 book by Guyot de MarneMarne, Guyot (1735) Dissertazione II del Commendatore F. Giuseppe Claudio Guyot de Marne […] sopra un’inscrizione punica, e greca: Saggi di dissertazioni accademiche pubblicamente lette nella nobile accademia etrusca dell’antichissima città di Cortona, Rome: Tommaso / Pagliarini, pp. 24−34