The Ocean Floor Is Created Along Mid Ocean Ridges

Older crust is recycled back into the mantle elsewhere on the globe typically where plates collide.

The ocean floor is created along mid ocean ridges. The size of the mid ocean ridge is about 35 000 miles long or 60 000 km and it covers over 23 percent of the earth s surface. A mid ocean ridge or mid oceanic ridge is an underwater mountain range formed by plate tectonics. The correct order of seafloor features from the coast to the mid ocean ridge is. The global mid ocean ridge system is the largest single volcanic feature on the earth encircling it like the seams of a baseball.

Because newly formed lithosphere is hotter and therefore less dense than the surrounding rocks which of the following is not part of an ophiolite complex. The rate of seafloor spreading determines the morphology of the crest of the mid ocean ridge and its width in an ocean basin. A mid ocean ridge is a seafloor mountain system formed by plate tectonics. Used to determine ocean structure beneath the sea floor.

Basalt the once molten rock that makes up most new oceanic crust is a fairly magnetic substance and scientists began using magnetometers to measure the magnetism of the ocean floor in the 1950s. Long narrow steep sided depression in the seafloor formed where one crustal plate sinks beneath another. New sea floor is formed along mid ocean ridges. What they discovered was that the magnetism of the ocean floor around mid ocean ridges was divided into matching stripes on either side of the ridge.

The earth would increase in volume. The total length of the ridge is as much as circling around the world to times. Residual unmelted crustal lithosphere. Along the crest of mid ocean ridges.

What would happen to earth if ocean floor were created at divergent boundaries at a faster rate than it is destroyed at convergent boundaries. Mid ocean ridges occur along divergent plate boundaries where new ocean floor is created as the earth s tectonic plates spread apart. The majority of the system is underwater with an average water depth to the top of the ridge of 2 500 meters 8 200 feet. Terms in this set 56 a method of mapping the topography of the ocean floor along a strip up to 60 km wide.

Area where new ocean floor is formed when lava erupts through cracks in earth s crust. The mid ocean ridge is the longest mountain range on earth. Why are mid ocean ridges elevated compared to the surrounding ocean floor. The magnetism of mid ocean ridges helped scientists first identify the process of seafloor spreading in the early 20th century.

The production of new seafloor and oceanic lithosphere results from mantle upwelling in respo. As the plates separate molten rock rises to the seafloor producing enormous volcanic eruptions of basalt. It typically has a depth of 2 600 meters and rises about two kilometers above the deepest portion of an ocean basin. Shelf slope rise.

This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the. Here the earth s crust is spreading creating new ocean floor and literally renewing the surface of our planet.