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supercontinent
(redirected from Supercontinents)

    Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
supercontinent
a great landmass thought to have existed in the geological past and to have split into smaller landmasses, which drifted and formed the present continents
supercontinent [′sü·pər‚känt·ən·ənt]
(geology)
A large continental mass, such as Pangea, that existed early in geologic time and from which smaller continents formed and separated by fragmentation and drifting.
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Some earlier studies of these rocks had led other teams to conclude that the magnetic field of the ancient Earth had a far more complex structure - some proposing the influence of four or even eight poles - implying that present models of the supercontinents that relied on paleomagnetic data and an axial dipole assumption were wrong.
Scientists put to rest controversy regarding Earth's magnetic field by Asian News International
The motion of tectonic plates continually rearranges Earth's continents, sometimes cramming most or all of them into immense groupings called supercontinents.
Howdy, neighbor! by Perkins, Sid / Science News for Kids
The ancient Tethys Ocean existed between the South American/African and Eurasian supercontinents.
Moving Earth and heaven: colliding continents, the rise of the ... by Clift, Peter / Oceanus
 
 
 
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