How deep is the Meteor seamount?
How deep is the Meteor seamount?
First Paragraph. Great Meteor Seamount is one of the largest seamounts in the Atlantic Ocean, rising from 4200-m depth at the seafloor to 270-m depth beneath the sea surface (Figure 1). Its elliptical plateau encompasses an area of 1500 km2, roughly matching the size of the Spanish island of Gran Canaria.
Where is the Great Meteor Seamount?
North Atlantic Ocean
It is one of the Seewarte Seamounts, rooted on a large terrace located south of the Azores Plateau….
|Great Meteor Seamount|
|Location||North Atlantic Ocean, 1,000 km (620 mi) south of the Azores|
|Coordinates||29°57′10.6″N 28°35′31.3″WCoordinates: 29°57′10.6″N 28°35′31.3″W|
Are seamounts isolated steep submarine hills?
Seamounts often project upwards into shallower zones more hospitable to sea life, providing habitats for marine species that are not found on or around the surrounding deeper ocean bottom. Because seamounts are isolated from each other they form “undersea islands” creating the same biogeographical interest.
How are seamounts and Guyots related?
Seamounts and Guyots are volcanoes that have built up from the ocean floor, sometimes to sea level or above. Guyots are seamounts that have built above sea level. Erosion by waves destroyed the top of the seamount resulting in a flattened shape. A seamount never reaches the surface so it maintains a “volcanic” shape. .
Where is vema?
South Atlantic Ocean
Vema Seamount is a seamount in the South Atlantic Ocean….
|Location of the seamount off southwestern Africa|
|Summit depth||26 metres (14 fathoms)|
|Summit area||13 square kilometres (5 sq mi)|
What is Gayot in geography?
Answer: In marine geology, a guyot (pronounced /ɡiːˈjoʊ/), also known as a tablemount, is an isolated underwater volcanic mountain (seamount) with a flat top more than 200 m (660 ft) below the surface of the sea. Kaneppeleqw and 3 more users found this answer helpful. Thanks 2.
How old is the New England Seamount?
Finally, between 100 and 80 million years ago, the hot spot formed the New England seamount chain. Bear Seamount—the oldest—formed about 100 to 103 million years ago. Moving southeasterly along the chain, the seamounts get progressively younger, with the Nashville Seamount being about 83 million years old.
What is the tallest seamount?
In fact, the highest mountain on Earth is actually a seamount—Hawaii’s Mauna Kea, a dormant volcano that is more than 30,000 feet tall measured from its base on the seafloor 18,000 feet beneath the surface.
What ocean has the most seamounts?
Seamount chains occur in all three major ocean basins, with the Pacific having the most number and most extensive seamount chains.
How are guyots created?
A guyot, or seamount, is an undersea mountain. Seamounts are formed by volcanic activity and can be taller than 10,000 feet . They can be isolated or part of large mountain chains. The New England Seamount contains more than 30 peaks that stretch 994 miles from the coast of New England.
What does vema mean in Greek?
A Greek pace (unit of length) Research Vessel Vema, a research ship of the Lamont-Doherty Earth Observatory used by J. Lamar Worzel and Marie Tharp, and some ocean phenomena discovered using it: Vema (mollusc), a genus of monoplacophoran molluscs.
How big is the Great Meteor Seamount in feet?
The shallow and flat summit of the Great Meteor Seamount, ranging between 150 and 300 m (490 and 980 ft) below sea level, suggests that it may have emerged sometime in the past. It is covered by a 150 to 600 m (490 to 1,970 ft) thick layer of limestone, pyroclastic rocks and bioclastic sandstones.
Which is the largest seamount in the North Atlantic?
The Great Meteor Seamount is the largest seamount in the North Atlantic (24 000 km3). This large guyot is one of the seamounts forming the Southern Azores Seamount Chain (SASC), rooted on a large terrace located south of the Azores Archipelago in the Atlantic Ocean.
How old are the basalts on the seamount?
Dredged basalts from the top of the eastern and southeastern flanks of the seamount have been K–Ar dated 10.7 ± 0.5 and 16.3 ± 0.4 million years old, respectively. The oldest sample has been 40Ar/39Ar dated at 17 ± 0.3 million years old.
How can you see the depths of the ocean?
There is another way to see the depths of the ocean: by measuring the shape and gravity field of Earth, a discipline known as geodesy.