Information on radiocarbon dating for kids dating secrets of the

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The Triassic era was between 250,000,000 and 200,000,000 years ago.

Take a quantity of uranium-238 and in 4.5 billion years half of it will have turned into lead-206.

These fossilized bacterial colonies date back 2.7 billion years and may extend 3.4 billion years.

Stromatolites grow at a maximum rate of 5cm every 100 years and a stromatolite 1.5 meters in diameter was found in Virginia and a 500cm high stromatolite was found at the foot of Wutai Mountain in China.

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Tyronnosaurus rexes weren’t alive at the same time; therefore, their stratum didn’t get laid down at the same time.

Benjamin Franklin saw that there were fossilized sea shells on top of the mountains of Appalachia, some of them imprinted into solid rock, and concluded, “Tis certainly the Wreck of a World we live on!

” The shells were deposited in layers on the Ocean floor over millions of years, layers that would be violently broken up and rippled into a mountain range 480,000,000 years ago by a catastrophic earthquake.

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