What Is Seafloor Spreading Theory

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.

What is seafloor spreading theory. Seafloor spreading helps to explain continental drift in the theory of plate tectonics. Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. Upsc geography sea floor spreading. Seafloor spreading and magnetic striping rising.

Geologists were aware that the north south magnetic polarity of the earth s magnetic. First proposed in the early 1960s by. When igneous rocks like basalt crystallize the iron atoms in them align with the magnetic field of the earth. Upsc geography sea floor spreading theory.

Seafloor spreading evidence process. Seafloor spreading is a geologic process in which tectonic plates large slabs of earth s lithosphere split. The theory of plate tectonics revolutionized the earth sciences by explaining how the movement of geologic plates causes mountain building volcanoes and earthquakes. Our mission is to liberate knowledge.

Find out information about seafloor spreading theory. The highly dense oceanic crust that is formed after a progressive spreading is destined to two possible occurrences. Looking for seafloor spreading theory. When oceanic plates diverge tensional stress causes fractures to occur in the lithosphere.

Most but not all earthquakes in this planar dipping zone result from compression and the seismic activity extends 300 to 700 km 200 to 400 miles below the surface implying that the subducted crust retains some rigidity to this depth at greater depths the subducted plate is partially recycled into the mantle. Explanation of seafloor spreading theory. It can either be subducted into the ocean deep trench or continue to spread across the ocean until it reaches a coast.