Search results
Results From The WOW.Com Content Network
Continental drift is the 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 they ride on plates of the Earth's lithosphere.
The Continental Divide in North America in red and other drainage divides in North America The Continental Divide in Central America and South America. The Continental Divide of the Americas (also known as the Great Divide, the Western Divide or simply the Continental Divide; Spanish: Divisoria continental de América, Gran Divisoria) is the principal, and largely mountainous, hydrological ...
In 1858, Snider-Pellegrini made these two maps. They depict his interpretation of how the American and African continents may once have fit together before becoming separated. Antonio Snider-Pellegrini (1802–1885) was a French geographer and geologist who theorized about the possibility of continental drift , anticipating Wegener's theories ...
Henry Robert Frankel. Henry Robert Frankel (October 11, 1944 – November 2, 2019) was an American philosopher and historian of science noted for his historical and philosophical analysis of the continental drift controversy and subsequent discovery of plate tectonics. He was emeritus professor at the University of Missouri, Kansas City. [1]
Expanding Earth. The expanding Earth or growing Earth was a hypothesis attempting to explain the position and relative movement of continents by increase in the volume of Earth. With the recognition of plate tectonics in 20th century, the idea has been abandoned. [2][3][4][5][6]
Watersheds of North America. A map of watersheds separated by the principal hydrological divides of North America. Watersheds of North America are large drainage basins which drain to separate oceans, seas, gulfs, or endorheic basins. There are six generally recognized hydrological continental divides which divide the continent into seven ...
Institutions. University of Tasmania (1946–1976) Samuel Warren Carey AO (1 November 1911 – 20 March 2002) was an Australian geologist and a professor at the University of Tasmania. He was an early advocate of the theory of continental drift. His work on plate tectonics reconstructions led him to develop the Expanding Earth hypothesis.
The model builds on the concept of continental drift, an idea developed during the first decades of the 20th century. Plate tectonics came to be accepted by geoscientists after seafloor spreading was validated in the mid-to-late 1960s.