Sea Floor Spreading Occurs At What Type Of Boundary

Seafloor spreading occurs at a diversion boundary.

Sea floor spreading occurs at what type of boundary.

The following features are shown at example depths to scale though each feature has a considerable range at which it may occur. What plate boundary and type of earth s crust from folded mountains. Wherever continents are bordered by deep sea trench systems as in the pacific ocean the ocean floor is plunged downward underthrusting the continents and ultimately reentering and dissolving in earth s mantle from which it had originated. For instance the atlantic ocean is believed to be expanding because of its few trenches.

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. See also continental drift a veritable legion of evidence supports the seafloor spreading hypothesis. It is a type of plate boundary that move away from euchre s a result of the spreading of boundaries new ocean floor is created. 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.

Spreading rate is the rate at which an ocean basin widens due to seafloor spreading. This mainly happens on the ocean floor and results in mid ocean ridges. At this point tectonic plates pull away from each other and the gaps fills with magma from the mantle. Subduction and sea floor spreading are processes that could alter the size and form of the ocean.

Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. The discovery of such magnetic stripes provided powerful evidence that sea floor spreading occurs. Spreading rates determine if the ridge is fast intermediate or slow. The magnetic patterns of the earth reverse themselves every 400 to millions of years.

What did scientist use to prove the the seafloor was spreading apart. The age of the sea floor also supports sea floor spreading. If sea floor spreading operates the youngest oceanic crust should be found at the ridges and progressively older crust should be found in moving away from the ridges towards the continents.