WebbThis theory was proposed by German meteorologist and geologist Alfred Wegener in 1912 and states that the position of the continents on the Earth’s surface has changed ... read … WebbHarold Hommand Hes Explanation: The idea that the seafloor itself moves and also carries the continents with it as it spreads from a central rift axis was proposed by Harold Hammond Hess from Princeton University and Robert Dietz of the U.S. Naval Electronics Laboratory in San Diego in the 1960s.

Harry Hess Biography, Theory & Discoveries - Study.com

Webb2 aug. 2016 · Hess devised a theory called sea-floor spreading which states that at mid-ocean ridges, molten material rises from the mantle and erupts. It then spreads out, … WebbHess devised a theory called sea-floor spreading which states that at mid-ocean ridges, molten material rises from the mantle and erupts. It then spreads out, pushing older rock to both sides of THE PROOF-----SEAFLOOR SPREADING •An American scientist named Harry Hess proposed the seafloor spreading theory in 1962. in any setting

GG101 Birth of a Theory - University of Hawaiʻi

WebbTheory of Plate Tectonics. Plate tectonics theory explains the large-scale motions of the earth’s lithosphere. The term plate was first coined by JT Wilson in 1965. Though this … WebbIn 1959, Harry Hess proposed the hypothesis of seafloor spreading – that the mid-ocean ridges represented tectonic plate factories, where a new oceanic plate was issuing from these long volcanic ridges. WebbFollowing this new scientific buzz, Harry Hess, a United States Navy officer who served in World War II and geologist, introduced his own theory of seafloor spreading. His theory followed that magma from the mantle … in any significant way