Unlike wegener, harry hess lived to see his major theory confirmed and accepted he helped to plan the us space program and died of a heart attack on august 25, 1969, a month after the apollo 11 's successful mission to bring the first humans to the surface of the moon. Seafloor and plates alfred wegener's theory of continental drift was proven when harry hess discovered a mechanism that could explain continental drift. Hess's theory in 1962, as a result of oceanographic research conducted in the 1950's, harry hammond hess proposed the theory of seafloor spreading to account for continental movement he suggested that continents do not move across oceanic crust, but rather that the continents and oceanic crust move together.
An overview of alfred wegener's theory of continental drift and harry hess' theory of ocean floor spreading. Continental drift theory, in turn, is an important part of the theory of plate tectonics plate tectonic theory was developed to explain the location of oceanic trenches, volcanoes and the location of various types of earthquakes. Alfred wegener proposed the theory of continental drift at the beginning of the 20th century his idea was that the earth's continents were once joined together, but gradually moved apart over millions of years.
Even though the theory of continental drift was proposed in 1912 by alfred wegener, the idea of moving continents wasn't generally accepted until the early 1960s. Continental drift and plate tectonics alfred wegener : these symmetric stripes supported a theory by hess on sea floor spreading, which we now know exists at. The premise that our continents once fitted together and then moved apart is explained by wegeners continental drift theory today with exception to one or two other disputing ideas (or theories) there is scientific consensus for the theory of continental drift.
Harry hammond hess (may 24, 1906 this unplanned wartime scientific surveying enabled hess to collect ocean floor profiles concept of continental drift as. Continental drift alfred wegener, a german climatologist and between the theory of continental drift and the theory mapping the ocean floor harry hess was a. Hess made a major contribution to the continental drift theory, which viewed continental and oceanic positions as the result of the break up of a single supercontinent (a theory first proposed by alfred wegener in 1912) suggesting a mechanism by which continents could move away from each other without tearing up a rigid seafloor, hess.
Plate tectonics for beginners using a series of simple drawings to illustrate plate movement 1912 alfred wegener theory of continental drift 7 through ocean. Seafloor spreading, theory of lithospheric evolution that holds that the ocean floors are spreading outward from vast underwater ridges first proposed in the early 1960s by the american geologist harry h hess, its major tenets gave great support to the theory of continental drift continental drift. Alfred (lewis 2000) and spoke german fluently, and wegener is believed to have first presented his holmes was certainly able to read it, 8 thus it theory of continental displacement to the geo- seems likely that they read wegener in the logical association of frankfurt in januaryl912, original german and discussed his displacement and a week. Alfred wegener & harry hess continental drift wegener studied the atmosphere as a meteorologist the theory was that they later sunk into the ocean wegener.
Discoveries of harry hess and alfred wegener the discoveries and ideas of harry hess and alfred wegener harry hess became a professor of geology at princeton in 1932 his specialty was the study of arced chains of islands with active volcanoes in 1945, hess measured the oceans to the deepest. Start studying chapter 8-continental drift and plate tectonics did alfred wegener not use to support his theory of continental drift floor spreading. Came with the continental drift theory his evidence: the americas, eurasia, and africa fit together like a jig-saw puzzle harry hess sea floor spreading theory.