The Sea Floor Is Constantly Shrinking

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.

The sea floor is constantly shrinking.

The pacific is neither growing nor shrinking. Vi hat is the evidence for sea floor spreading. The seafloor 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. Search for an answer or ask weegy. The reason the pacific ocean is shrinking is because of the deep water trenches there while the atlantic ocean is getting bigger. Explain the following statement.

The atlantic is growing as a result of seafloor being added along the mid ocean ridge that runs its length. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. When the weight of an area of earth s crust increases the lithosphere. It is also shrinking because of plate tectonics.

Updated 3 30 2017 1 59 42 am. The seafloor is constantly shrinking. The pacific is slowly shrinking because it is folding the sea floor in towards the center of the earth this is called subduction. The pacific ocean is the world s largest ocean.

Vl hat happens at deep ocean trenches. The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african plate the east pacific rise is a mid ocean ridge that runs through the eastern pacific ocean and separates the pacific plate from the north american. Ii hat is the process of sea floor spreading. 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.

Asked 3 29 2017 1 32 49 pm. Because of sea floor spreading the ocean floor is constantly renewing itself. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. Seafloor spreading is the continuous process of forming new igneous rock at mid ocean ridges by injection of magma that forms new seafloor.

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. It makes up 28 of the earth s surface and is home to the world s deepest oceanic trench the mariana trench. Rising magma cools and solidifies to form new rock that replaces the ocean floor.