-
He proposed that all of the continents were once connected together during the Pennsylvanian Period. He based this theory on the fact that he had found plant fossils in both Europe and the United States that were identical. He found matching fossils on all of the continents.
-
Oldham made two enormous contributions to plate tectonic theory and geophysics, he was able to identify three distinct seismic waves emanating from an earthquake epicenter on a seismic record. The second is that Oldham found that earthquake waves increased in speed as they moved deeper into the Earth, up to a certain point. At that point, below a certain depth, they suddenly move much slower.
-
His analysis of tectonic features foreshadowed in many ways modern thought regarding plate collisions.
-
He speculated that mountain ranges were formed from the contraction and cooling of Earth. He then went on to try and explain the origins of the oceans, continents, and the similarities of fossils found on separate continents.
-
In 1912, Alfred Wegener proposed a theory that the continents had once been joined, and over time had drifted apart. This was the Continental Drift Theory.
-
Du Toit compared both the geological and paleontological stratigraphy from the coastlines of southwestern Africa and southeastern South America
-
He collected years worth of core data from the world's ocean floors, bringing the ocean basins into view for the first time. Results from his research laid groundwork for further discoveries that would shape plate tectonics in the Earth Sciences.
-
I selected renown Geologist Arthur Holmes, because of his geological contributions to the scientific community. Holmes continued the works of Wagener elaborating the continental drift theory, which is now known as plate tectonics.
-
He wrote the first paper defining the mathematical principles of plate tectonics on a sphere, and his early work on mantle convection created the modern discussion of planetary interiors.
-
Harry Hess was a professor of geology at Princeton University (USA), and became interested in the geology of the oceans while serving in the US Navy in World War II. His time as a Navy officer was an opportunity to use sonar (also called echo sounding), then a new technology, to map the ocean floor across the North Pacific.
-
Conducted pioneering research along with Harry Hammond Hess concerning seafloor spreading.
-
Is an English marine geologist and geophysicist. He made key contributions to the theory of plate tectonics, helping to show that the seafloor spreads from mid-ocean ridges with a symmetrical pattern of magnetic reversals in the basalt rocks on either side.
-
Morley worked on the theory of continental drift similar to work by Britons Fred Vine and Drummond Matthews. The three contributed significantly to geology by relating the magnetic properties of ocean crust to the processes involved in the theory of plate tectonics.
-
showed how variations in the magnetic properties of rocks forming the ocean floor could be consistent with, and ultimately help confirm, Harry Hammond Hess's 1962 theory of seafloor spreading.
-
was a Canadian geophysicist and geologist who achieved worldwide acclaim for his contributions to the theory of plate tectonics.
-
In 1968 published his paper on global clinimatics. In this paper he modeled how the motion of the earth's crust had occurred from the Cretaceous Period to present.
