Sea Floor Spreading Occurs At What Type Of Boundary

What plate boundary and type of earth s crust from folded mountains.

Sea floor spreading occurs at what type of boundary. Due to this continuous seafloor spreading occurs and makes atlantic ocean floor to be connected to other continental crust making the ocean gets wider over the time. The discovery of such magnetic stripes provided powerful evidence that sea floor spreading occurs. 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 age of the sea floor also supports sea floor spreading.

Spreading rates determine if the ridge is fast intermediate or slow. Seafloor spreading occurs at a diversion boundary. Spreading rate is the rate at which an ocean basin widens due to seafloor spreading. 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.

The magnetic patterns of the earth reverse themselves every 400 to millions of years. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. What did scientist use to prove the the seafloor was spreading apart. 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.

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. This mainly happens on the ocean floor and results in mid ocean ridges. For instance the atlantic ocean is believed to be expanding because of its few trenches. This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level.

At this point tectonic plates pull away from each other and the gaps fills with magma from the mantle. See also continental drift a veritable legion of evidence supports the seafloor spreading hypothesis. 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.