Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them.
The sea floor is constantly shrinking.
In the mid 1900s scientists mapped the mid ocean ridges using sonar.
But the pacific ocean is slowly shrinking at a rate of 0 5 square kilometers 0 19 square miles per year due to plate tectonics.
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The pacific is neither growing nor shrinking.
Seafloor spreading is the continuous process of forming new igneous rock at mid ocean ridges by injection of magma that forms new seafloor.
The seafloor is constantly shrinking.
The atlantic is growing as a result of seafloor being added along the mid ocean ridge that runs its length.
Ii hat is the process of sea floor spreading.
When the weight of an area of earth s crust increases the lithosphere.
Vl hat happens at deep ocean trenches.
The seafloor is constantly shrinking.
Explain the following statement.
Vi hat is the evidence for sea floor spreading.
Rising magma cools and solidifies to form new rock that replaces the ocean floor.
The pacific ocean is the world s largest ocean.
The process is continuous because forces cause opposite sides of the mid ocean ridge to constantly move apart making new room for the process to repeat.
Asked 3 29 2017 1 32 49 pm.
Because of sea floor spreading the ocean floor is constantly renewing itself.
This idea played a pivotal role in the development of the theory of plate tectonics which revolutionized geologic thought during the last quarter of the 20th century.
It is also shrinking because of plate tectonics.
Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor.
Updated 3 30 2017 1 59 42 am.
It is massive with an estimated area of 63 8 million square miles and an average depth of 13 000 feet.
In about 500 million years the pacific will not be there and the.
Trenches located near south america alaska and eastern asia are continually removing sea floor as new seafloor is being added along the pacific s mid ocean ridges.
It makes up 28 of the earth s surface and is home to the world s deepest oceanic trench the mariana trench.
The longest chain of mountains in the world is the system of mid ocean ridges.
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