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Continental drift is a highly supported scientific theory, originating in the early 20th century, that Earth's continents move or drift relative to each other over geologic time. [1] The theory of continental drift has since been validated and incorporated into the science of plate tectonics , which studies the movement of the continents as ...
The expanding Earth and the contracting Earth concept had to be given up. The shifting and evolution of knowledge and concepts, were from: Eduard Suess (alpine geology: theory of thrusting as a modification of the geosyncline hypothesis), ; then to Alfred Wegener (continental drift), (Wegener 1912a), (Wegener 1929);
The rejection of continental drift: theory and method in American earth science. Oxford University Press. ISBN 978-0-19-511733-2. Naomi Oreskes; Homer Le Grand, eds. (December 2001). Plate Tectonics: An Insider's History of the Modern Theory of the Earth. Westview Press. p. 448. ISBN 978-0-8133-3981-8. Ortelius, Abraham (1596).
[25] [26] [27] During this time, Earth's crust cooled enough that rocks and continental plates began to form. Some scientists think because Earth was hotter in the past, [ 28 ] [ 29 ] plate tectonic activity was more vigorous than it is today, resulting in a much greater rate of recycling of crustal material.
1912 – Alfred Wegener proposes that all the continents once formed a single landmass called Pangaea that broke apart via continental drift; 1912 – George Barrow maps zones of metamorphism (the Barrovian sequence) in southern Scotland; 1913 – Albert A. Michelson measures tides in the solid body of the Earth
This questioning represented a turning point in the study of the Earth. It was now possible to study the history of the Earth from a scientific perspective without religious preconceptions. With the application of scientific methods to the investigation of the Earth's history, the study of geology could become a distinct field of science.
The reason geologists didn’t declare the Anthropocene the start of a bigger and more important time measurement, such as a period, is because the current Quaternary Period, which began nearly 2. ...
The earliest Earth crust probably forms similarly out of similar material. On Earth the pluvial period starts, in which the Earth's crust cools enough to let oceans form. c. 4,404 Ma – First known mineral, found at Jack Hills in Western Australia. Detrital zircons show presence of a solid crust and liquid water.