Harry Hess S Theory Of Seafloor Spreading

Harry hess argues that the continents had once been one and have drifted apart.

Harry hess s theory of seafloor spreading.

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. 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. Harry hess 1906 1969 in his navy uniform as captain of the assault transport cape johnson during world war ii. Hess proposes sea floor spreading 1960.

The first comprehensive attempt at such an explanation was made by harry h. Harry hess was a profecer of geology at princeton university in the 1960 s and he played a key role in the development of the theory of plate tectonics. Hess of the united states in a widely circulated manuscript written in 1960 but not formally published for several years. Evidence of sea floor spreading.

He identified the presence of mid ocean ridges and that ocean trenches are where ocean floor is destroyed and recycled. Harry hess s hypothesis about seafloor spreading had collected several pieces of evidence to support the theory. The existence of these three types of large striking seafloor features demanded a global rather than local tectonic explanation.