Gondwana
or Gondwanaland was a composite continent,
made up of South America, Africa, Antarctica, India, and Australia,
and even at one time included Florida and part of southwest Europe.
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Long Time Ago |
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At the end of the Jurassic Age Gondwanaland began to break up and, during the Tertiary Age approximately 20 million years ago, Antarctica completely broke away from South America. Due to its isolation, an ocean current formed around the continent, fed by conductive motions caused by water masses of different temperatures, favored by cyclonic type atmospheric circulation , and influenced by the Earth's rotation. The breaking up of Gondwanaland, the dispersion of the various continental blocks, the drifting of the Antarctic continent towards polar latitudes and its isolation, are all relatively recent events by the scale of geological time. The geographical situation of Antarctica, in an isolated polar position and covered with ice, is the consequence of a long and complex geological evolution, which is still taking place and which, at least in part, should be understood and reconstructed. Up until the Jurassic Age 140 million years ago, Antarctica formed part of the supercontinent of Gondwanaland, In the Jurassic Age 140 million years ago, Antarctica formed part of the supercontinent of Gondwanaland, which also included Africa, Arabia, India, Ceylon, Australia, New Zealand and South America, and occupied temperate latitudes. |
Modern
day landmass were created from the break upof the ancient
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