Harry Hess S Theory Of Seafloor Spreading

After the war he remained active in the naval reserve reaching the rank of rear admiral.

Harry hess s theory of seafloor spreading.

The existence of these three types of large striking seafloor features demanded a global rather than local tectonic explanation. With the discovery of plate tectonics and the mapping of the earth. Harry hess argues that the continents had once been one and have drifted apart. Harry hess published the history of ocean basins in 1962 outlining a theory of how tectonic plates can move which was later called sea floor spreading.

The first comprehensive attempt at such an explanation was made by harry h. Hess served in world war ii and while he would go from one battle to another he and his crew conducted sonar test to map the seafloor. He identified the presence of mid ocean ridges and that ocean trenches are where ocean floor is destroyed and recycled. Hess proposes sea floor spreading 1960.

Evidence of sea floor spreading. This evidence was from the investigations of the molten material seafloor drilling radiometric age dating and fossil ages and the magnetic stripes. Hess of the united states in a widely circulated manuscript written in 1960 but not formally published for several years.