Q. Which of the following is a description of a Guyot?
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.
Q. What did Scientist find at the Mid-Ocean Ridge?
It is now called the Mid-Ocean Ridge. In 1953, American physicists Maurice Ewing (1906-1974) and Bruce Heezen (1924-1977) discovered that through this underwater mountain range ran a deep canyon. In some places the canyon, called the Great Global Rift, came very close to land.
Q. What is a consequence of the rising mantle of ocean ridges?
Rising mantle material at mid-ocean ridges creates the potential for plates to move away from the ridge with a force called ridge push. Ridge Push. Because mid-ocean ridges are higher, gravity pulls the surrounding rocks down and away from the ridge.
Q. What material is something that is capable of changing shape without breaking?
tectonic material
Q. What is it called when two plates collide?
If two tectonic plates collide, they form a convergent plate boundary. Usually, one of the converging plates will move beneath the other, a process known as subduction. When two plates are moving away from each other, we call this a divergent plate boundary.
Q. What is the force produced by the sinking of a plate?
A major component is the downward gravitational force acting on the cold and dense descending slab as it sinks into the mantle. This gravity-generated force pulls the whole oceanic plate down as a result of the negative buoyancy of the slab: this is the negative buoyancy force, shown as FNB in Figure 28.
Q. What creates slab pull?
Slab pull is the force exerted by a dense oceanic plate sinking into the mantle at a convergent plate boundary. Slab pull is a key force acting on plate motion because it has been proven to greatly affect the velocity of a plate, not to mention create dramatic volcanoes.
Q. How can you distinguish a slab pull from a ridge push?
Plate Driving Forces: The forces that drive the motions of tectonic plates at the surface. Slab Pull: The force exerted by the weight of the subducted slab on the plate it is attached to. Ridge Push: The pressure exerted by the excess height of the mid-ocean ridge.
Q. Is slab pull a form of convection?
mantle convection currents— warm mantle currents drive and carry plates of lithosphere along a like a conveyor belt; slab pull — older, colder plates sink at subduction zones, because as they cool, they become more dense than the underlying mantle.
Q. Is a slab pull theory a form of convection?
The motion of tectonic plates is driven by convection in the mantle. There are three main forces that determine the rate at which tectonic plates move as part of the mantle convection system: slab pull: the force due to the weight of the cold, dense sinking tectonic plate.
