Seafloor Spreading Theory By Harry Hess

The theory of seafloor spreading the mid ocean ridge is where the seafloor spreading occurs in which tectonic plates large slabs of earth s lithosphere split apart from each other.

Seafloor spreading theory by harry hess.

Seafloor spreading had been proved. Harry hess argues that the continents had once been one and have drifted apart. Seafloor spreading was proposed by an american geophysicist harry h. Hess proposes sea floor spreading 1960.

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. The seafloor spreading hypothesis was proposed by the american geophysicist harry h. He identified the presence of mid ocean ridges and that ocean trenches are where ocean floor is destroyed and recycled.

And alfred wegener was. After the war he remained active in the naval reserve reaching the rank of rear admiral. It was determined that the seafloor basalt is youngest at mid ocean ridges and oldest adjacent to continents. If spreading continues past the incipient stage described above two of the rift arms will open while the third arm stops opening and becomes a failed rift or aulacogen.

Harry hess was right. Harry hammond hess may 24 1906 august 25 1969 was an american geologist and a united states navy officer in world war ii who is considered one of the founding fathers of the unifying theory of plate tectonics he is best known for his theories on sea floor spreading specifically work on relationships between island arcs seafloor gravity anomalies and serpentinized peridotite.