The mid-ocean ridge is the most extensive chain of mountains on Earth , stretching nearly 65,000 kilometers (40,390 miles) and with more than 90 percent of the mountain range lying in the deep ocean. ... The ridge system forms the longest and largest mountain range on Earth, winding its way between the continents.
Which is the best description of a mid-ocean ridge?
A mid-ocean ridge (MOR) is a seafloor mountain system
What is a mid-ocean ridge in your own words?
A mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics . This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.
How do you describe ocean ridges?
Oceanic ridges are found in every ocean basin
What would you expect to see at a mid-ocean ridge?
Because mid-ocean ridges are places where tectonic plates are pulling apart, you might expect to find an incredibly deep canyon , but that's not exactly the case. As the tectonic plates pull apart, molten rock, or magma, comes up from below to fill in the gaps.
What is a sentence for mid-ocean ridge?
The mid-ocean ridge is two chains of mountains separated by a large depression that form at a spreading center. Sitting astride the mid-ocean ridge in the North Atlantic Ocean, Iceland is volcanically one of the most dynamic parts of the Earth's surface.
What is the meaning of Mid-ocean?
: an elevated region with a central valley on an ocean floor at the boundary between two diverging tectonic plates where new crust forms from upwelling magma.
What are the five example of ocean ridges?
This ridge system includes the Mid-Atlantic Ridge, Mid-Indian Ocean Ridge, Carlsberg Ridge, Pacific-Antarctic Ridge , and the East Pacific Rise with its related features, including the Chile Rise, Galapagos Rift Zone, Gorda Rise, and Juan de Fuca Ridge.
Where are the mid-ocean ridges?
Mid-Atlantic Ridge, submarine ridge lying along the north-south axis of the Atlantic Ocean ; it occupies the central part of the basin between a series of flat abyssal plains that continue to the margins of the continental coasts.
How does mid-ocean ridges form?
The mid-ocean ridge is a continuous range of undersea volcanic mountains that encircles the globe almost entirely underwater. ... It formed and evolves as a result of spreading in Earth's lithosphere—the crust and upper mantle—at the divergent boundaries between tectonic plates .
Which two tectonic plates are separated by a mid-ocean ridge?
Seafloor spreading
Which mid-ocean ridge is spreading the slowest?
The Ridge is named after him, and the name was recognized in April 1987 by SCUFN (under that body's old name, the Sub-Committee on Geographical Names and Nomenclature of Ocean Bottom Features). The ridge is the slowest known spreading ridge on earth, with a rate of less than one centimeter per year.
What is the mid-Atlantic Ocean ridge Why is it important?
Mid-ocean ridges are geologically important because they occur along the kind of plate boundary where new ocean floor is created as the plates spread apart . Thus the mid-ocean ridge is also known as a “spreading center” or a “divergent plate boundary.” The plates spread apart at rates of 1 cm to 20 cm per year.
Is a mid-ocean ridge a convergent boundary?
The mid-ocean ridge system is an example of a divergent (rather than a convergent or transform) plate boundary. ... The mid-ocean ridge system has been understood only since the development and acceptance of plate tectonic theory in the 1960s.
What is the mid-ocean ridge quizlet?
mid-ocean ridge. an undersea mountain chain where new ocean floor is produced at a divergent plate boundary .
Where are seamounts located?
Seamounts are commonly found near the boundaries of Earth's tectonic plates and mid-plate near hotspots . At mid-ocean ridges, plates are spreading apart and magma rises to fill the gaps.
