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A Piece of Canada lost in Auzzie Land

Canada is more than 7,000 miles away from the nearest point of Australia but it  has not always been that way. 1.7 billion years ago a piece of Canada broke off. It has been found in the very ancient sedimentary rocks in Georgetown, Australia.

The Earth’s crust, made up of land masses and the ocean floors, isn’t static—it’s made up of plates that shift, slide, and collide. Each plate is like a giant puzzle with pieces that overlap and move, maintaining no correct alignment. Because those plates are always moving, the arrangement of continents and oceans has been in flux over the last several billion years.

Our continents once drifted together, forming the supercontinent called Numa or Columbia. Data suggests that the Georgetown rocks broke off from Canada and collided with northern Australia around 1.6 billion years ago. It remained there even after Nuna broke apart 300 million years later. The geological signature “cannot be linked with any other rocks in Australia,” researcher, Adam Nordsvan said.

There are gold deposits near Georgetown — meaning it would be worth exploring for gold in the Yukon where it could have been attached. Geologist say that more evidence will be needed to link the Georgetown rocks to Canada with more certainty – so don’t start digging (again) for gold in the Yukon yet!

Check out this documentary about Australia: Australia

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