Not An Exampel Of Sea Floor Spreading Quizlet

The process of subduction and sea floor spreading can change the size and shape of the oceans.

Not an exampel of sea floor spreading quizlet.

That is the time it takes for new rock to form at the mid ocean ridge move atoss the ocean and sink into a trench. The process of sea floor spreading. Continental shelf 300 feet continental slope 300 10 000 feet abyssal plain 10 000 feet abyssal hill 3 000 feet up from the abyssal plain seamount 6 000 feet. The mid ocean ridge is the region where new oceanic crust is created.

The oldest sediments so far recovered by a variety of methods including coring dredging and deep sea drilling date only to the jurassic period not exceeding about 200 million years in age. The oceanic crust is composed of rocks that move away from the ridge as new crust is being formed. Because of these processes the ocean floor is renewed about every 200 million years. T f as the south atlantic basin widens by seafloor spreading africa and south america are moving closer together.

It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary. The formation of the new crust is due to the rising of the molten material magma from the mantle by convection current. The following features are shown at example depths to scale though each feature has a considerable range at which it may occur. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor.

Sea floor spreading occurs when the sea floor spreads apart along divergent boundaries and forms the mid ocean ridge. 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. Seafloor spreading review study guide by tatumbrianna includes 32 questions covering vocabulary terms and more. Quizlet flashcards activities and games help you improve your grades.

This creates new ocean crust. Seafloor spreading is happening at b. List the locations in the correct sequence with the initial seafloor spreading stage first followed by more advanced stages in the seafloor spreading process african rift valley red sea atlantic ocean. Sea floor spreading answer key.

False t f iceland is a good example of an island arc formed from an oceanic oceanic plate collision. This is a mid ocean ridge. This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. Magma is pushed up through cracks in the crust along the mid ocean ridge.