3 Kinds Of Evidence To Support Ocean Floor Spreading

Evidence from drilling samples.

3 kinds of evidence to support ocean floor spreading.

Harry hess s hypothesis about seafloor spreading had collected several pieces of evidence to support the theory. In a process taking tens of millions of years part of the ocean floor sinks back into the mantle at deep ocean trenches. At spreading rates of about 15 cm plate tectonics seafloor spreading britannica. Shortly after the conclusion of world war ii sonar equipped vessels crisscrossed the oceans collecting ocean depth profiles of the seafloor beneath them.

What 3 types of evidence support sea floor spreading. Seafloor spreading rates are much more rapid in the pacific ocean than in the atlantic and indian oceans. First samples of the deep ocean floor show that basaltic oceanic crust and overlying sediment become progressively younger as the mid ocean ridge is approached and the. The glomar challenger a drilling ship built in 1968 gathered the samples.

The process of sea floor spreading. The mid ocean ridge is the region where new oceanic crust is created. This evidence was from the investigations of the molten material seafloor drilling radiometric age dating and fossil. 1 age of rock 2 magnetic stripes 3 molten material.

3 types of evidence of sea floor spreading. Abundant evidence supports the major contentions of the seafloor spreading theory. You might also like. The idea that the earth s crust is made up of huge tectonic plates that are floating on an ocean of molten hot magma seemed too.

Interpreting diagrams how are these matching stripes evidence of sea floor spreading. Sea floor spreading science. Plate tectonics theory is taught in science classrooms around the world but just 50 years ago it was a hotly contested theory. This is deep ocean floor.