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New model suggests lost continents for early Earth

Models for the distribution of crustal thickness in early Earth. The crust in the prevailing paradigm is mostly oceanic, with some thin continental crust.  The new model predicts a thicker and greater continental portion that was not preserved.

Earth scientists suggest that continents may have risen out of the sea much earlier than previously thought but were destroyed, leaving little trace.

[Read more about New model suggests lost continents for early Earth]

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Competition: Young Scientist of the Year

How do we feed the world’s growing population? How do we save our wildlife from extinction? Got an idea that will build a brighter, greener world?

Australian high school students are invited to submit a short video about one of Australia’s big science challenges.

Video competition