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.

3 kinds of evidence to support ocean floor spreading.

Sea floor spreading science. This is deep ocean floor. 1 age of rock 2 magnetic stripes 3 molten material. 3 types of evidence of sea floor spreading.

Evidence from drilling samples. Seafloor spreading rates are much more rapid in the pacific ocean than in the atlantic and indian oceans. What 3 types of evidence support sea floor spreading. 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.

Plate tectonics theory is taught in science classrooms around the world but just 50 years ago it was a hotly contested theory. Shortly after the conclusion of world war ii sonar equipped vessels crisscrossed the oceans collecting ocean depth profiles of the seafloor beneath them. Interpreting diagrams how are these matching stripes evidence of sea floor spreading. The survey data was used to create three dimensional relief maps of the ocean floor and by 1953 american oceanic cartographer marie tharp had created the first of several maps that revealed the presence of an underwater mountain range.

The glomar challenger a drilling ship built in 1968 gathered the samples. List and describe the evidence for the plate tectonics theory. 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.

You might also like. Abundant evidence supports the major contentions of the seafloor spreading theory. At spreading rates of about 15 cm plate tectonics seafloor spreading britannica. 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.