The "Recent" Geological History of the Earth
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Geologists believe the continents all used to be part of
a single land mass, called `Pangaea', several hundred million years
ago. In fact, there may have been several cycles of super-continent formation.
MOVIE What is the evidence for Super-continents?
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1) ROCKS: The types of rocks on continents appear to be continuous
across continental boundaries, for example, mountain ranges and layerings.
2) FOSSILS: Fossils of animals with a limited geographic range were found to be continuous across continental boundaries. |
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