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Earth's Continental Plates. The Earth's surface is divided into huge, thick plates that drift atop the soft mantle. ... All About Plate Tectonics: Earth's Plates and Continental Drift; The Earth's rocky outer crust solidified billions of years ago, soon after the Earth formed. This crust is not a solid shell; it is broken...
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www.enchantedlearning.com/subjects/astronomy/planets/ea...
www.enchantedlearning.com/subjects/astronomy/planets/earth/Continents.shtml
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CONTINENTAL DRIFT - In 1915, the German geologist and meteorologist Alfred Wegener first proposed the theory of continental drift. ... In 1915, the German geologist and meteorologist Alfred Wegener first proposed the theory of continental drift, which states that parts of the Earth's crust slowly drift atop a liquid core.
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www.enchantedlearning.com/subjects/dinosaurs/glossary/C...
www.enchantedlearning.com/subjects/dinosaurs/glossary/Contdrift.shtml
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Simple explanation of continental drift in the framework of the history of the Universe ... At some stage in history a process called continental drift began. We do not know when because the rocks have been squashed and changed so much since then, but it is important because it is still happening today.
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www.historyoftheuniverse.com/condrift.html
www.historyoftheuniverse.com/condrift.html
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CONTINENTAL DRIFT AND THE EXPANSION OF THE UNIVERSE ... Existing Theory of Continental Drift; Proposed Theory of Continental Drift; Expansion of the Earth; Problems with the proposed theory; Problems with the existing theory; Planetary evidence of the local expansion of the universe;
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www3.bc.sympatico.ca/Moon/continent.html
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Wonderful animations of Plate Tectonics movement. Including gif, avi and mov formats. ... The progress of the earth sciences and the advancement of technologies associated with the understanding of our planet during the 1940's and 50's have led geologists to develop a new way of looking at the world and how it works.
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www.ucmp.berkeley.edu/geology/tectonics.html
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Opponents of continental drift noted that plowing through oceanic crust would distort continents beyond recognition, and that centrifugal and tidal forces were far too weak to move continents -- one scientist calculated that a tidal force strong enough to move continents would cause the Earth to stop rotating in less...
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www.ucmp.berkeley.edu/history/wegener.html
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According to the continental drift theory, the supercontinent Pangaea began to break up about 225-200 million years ago, eventually fragmenting into the continents as we know them today. ... The theory of continental drift would become the spark that ignited a new way of viewing the Earth. But at the time Wegener...
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pubs.usgs.gov/publications/text/historical.html
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In the early 1900's Alfred Wegener proposed the idea of Continental Drift. His ideas centered around continents moving across the face of the earth. The idea was not quite correct - compared to the plate tectonics theory of today - but his thinking was on the proper track.
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