Harry Hess S Theory Of Seafloor Spreading

Hess proposes sea floor spreading 1960.

Harry hess s theory of seafloor spreading. He identified the presence of mid ocean ridges and that ocean trenches are where ocean floor is destroyed and recycled. This evidence was from the investigations of the molten material seafloor drilling radiometric age dating and fossil ages and the magnetic stripes. The existence of these three types of large striking seafloor features demanded a global rather than local tectonic explanation. 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.

The first comprehensive attempt at such an explanation was made by harry h. Harry hess argues that the continents had once been one and have drifted apart. Evidence of sea floor spreading. With the discovery of plate tectonics and the mapping of the earth.

Harry hess 1906 1969 in his navy uniform as captain of the assault transport cape johnson during world war ii. After the war he remained active in the naval reserve reaching the rank of rear admiral. 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.