As Naomi (2001) argued, it was many key theories about the earth that led to the development of the Plate Tectonics. The Plate Tectonics could be developed holistically because of the findings of the different theories. This need for theory development was how it was possible for researchers to finally identify the mystery behind the surface of earth changes. The unifying theory indeed had to draw on much existing research works that described the following. The description of what existed before with respect to the land and ocean floor, the form of earthquakes that changed the structures, the descriptions of ocean basins with much more accuracy than before and the float and drift of the asthenosphere
One of the more particular mentions is that the historical contribution to plate tectonics was made by Edward Suess. His work is the contraction theory. Edward Suess’ Contraction Theory stemmed from his observation of the lateral movement of rocks in long distances. Suess on this basis supported the theory that earth was shrinking. Some of his other contributions include and knowledge of trees was extinct in some areas of India and South Africa such as the Glossopteris, the present of a super continent which he called Gondwanaland. These contributions were to play a major role along with other findings for creating the unifying theory of Plate Tectonics. These assessments also later led researchers like Wegner to propose the Continental Drift theory. The continental drift theory was assessed directly from the extinction of a tree found on different subcontinents. Positional shift of the earth’s surface was theoretically better organized with his contributions. Many geophysical, meteorological contributions were made in context by the researcher.