Meteorites key to the story of Earth’s layers

13 abril 2015

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.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4oXl6ISbyRY/150413161541.htm

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