Waspie_Dwarf Posted April 15, 2015 #1 Share Posted April 15, 2015 Meteorites key to the story of Earth's layers A new analysis of the chemical make-up of meteorites has helped scientists work out when the Earth formed its layers.The research by an international team of scientists confirmed the Earth's first crust had formed around 4.5 billion years ago. The team measured the amount of the rare elements hafnium and lutetium in the mineral zircon in a meteorite that originated early in the solar system. Read more... Link to comment Share on other sites More sharing options...
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