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Scientific discoveries. In 1960, Hess made his single most important contribution, which is regarded as part of the major advance in geologic science of the 20th century. In a widely circulated report to the Office of Naval Research, he advanced the theory, now generally accepted, that the Earth's crust moved laterally away from long ...
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.
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'. He identified the presence of mid ocean ridges, and that ocean trenches are where ocean floor is destroyed and recycled.
The seafloor spreading hypothesis was proposed by the American geophysicist Harry H. Hess in 1960. On the basis of Tharp’s efforts and other new discoveries about the deep-ocean floor, Hess postulated that molten material from Earth’s mantle continuously wells up along the crests of the mid-ocean ridges that wind for nearly 80,000 km ...
This process is called plate tectonics, and it transformed the thinking of geologists. One of them, Harry Hess, was an instrumental figure in figuring out how plate tectonics worked. Hess possessed two valuable skills: careful attention to detail and the ability to form sweeping hypotheses.
These soundings gave Hess the data he needed to form ocean floor profiles across the North Pacific Ocean, resulting in his finding a series of flat-topped volcanoes beneath the surface. His loyalty to Princeton influenced his calling the volcanoes "guyots" after the university Geology Building.
no small measure to Hess’s insight and leadership—was underway. Years after his death, Harry Ham-mond Hess remains a larger-than-life figure. Anecdotes about him abound in Guyot Hall, the crenellated, turn-of-the-century home of the university’s Department of Geo-logical and Geophysical Sciences, where he was a fixture for 40 years.
