Plate Tectonics

Wegner's Continental Drift theory

Jan 10, 1915

"On the Origin of Continents and Oceans"
Wegner published the Contental Drift theory in the first edition of his book "On the Origin of Continents and Oceans". *day and month unknown

From Continental Drift to Plate Tectonics

Period: Mar 7, 1915 to Mar 7, 2013

Arthur Holmes proposed a way to explain Wegner's Continental Drift Theory

Jan 1, 1930

The power of convection was propsoed by Arthur Holmes around 1930. *day and month unknow

Robert Dietz's contribution Plate Tectonic Theory

Mar 8, 1952

He found the first fracture zone in the Paccific Ocean.

Harry Hess's Seafloor Spreading Hypothesis was informally presented

Mar 7, 1959

He informally presnted this hypothesis in a manuscript. *day and month unknown

Harry Hess's Seafloor Spreading hypotheses was published

Mar 7, 1963

Harry Hess's Seafloor Spreading Hypothesis was published in a paper tiltled "History of Ocean Basins," *month and day unknown

J. Tuzo Wilson's contribution to Plate Tectonics

Oct 7, 1963

J. Tuzo Wilson and other scientists developed the Plate Tectonic.*exact date is unknown