Sea Floor Spreading Is Occurring At The Boundary Between The

The farther away the floor is from.

Sea floor spreading is occurring at the boundary between the.

As upwelling of magma continues the plates continue to diverge a process known as seafloor spreading samples collected from the ocean floor show that the age of oceanic crust increases with distance from the spreading centre important evidence in favour of this process. Region provides the best evidence that the seafloor has been spreading for millions of years. Seafloor spreading occurs at a diversion boundary. 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.

Spreading rate is the rate at which an ocean basin widens due to seafloor spreading. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. Spreading rates determine if the ridge is fast intermediate or slow. Convergent plate boundary between the pacific plate and the north american plate.

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. A african plate and antarctic plate b nazca plate and south american plate c china plate and philippine plate d australian plate and eurasian plate 36 seafloor spreading is occurring at the boundary between the a a b b c c d d. African plate and american plate nazca plate and south american plate. In which earth layer are most convection currents that cause seafloor spreading thought to be located.

Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. These age data also allow the rate of seafloor spreading to be determined and they show that rates. The rate at which new oceanic lithosphere is added to each tectonic plate on either side of a mid ocean ridge is the spreading half rate and is equal to half of the spreading rate. At this point tectonic plates pull away from each other and the gaps fills with magma from the mantle.