Sea Floor Spreading In Hindi

As the seafloor spreading axis moves along the margin thermal uplift produces a ridge.

Sea floor spreading in hindi. Point by point for high retention. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. Spreading rate is the rate at which an ocean basin widens due to seafloor spreading. He suggested that new sea floor forms at the oceanic ridges and spread outwards from the line of origin.

Get detailed illustrated notes covering entire syllabus. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. The concept of seafloor spreading was put forward by h harry hess an american geologist. The concept of sea floor spreading.

A profound consequence of seafloor spreading is that new crust was and still is being continually created along the oceanic ridges. 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 rates determine if the ridge is fast intermediate or slow. 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.

Molten rock erupts onto the seafloor there then cools and rifts away from the ridge on either side in a process known as seafloor spreading. 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.