Scientists play ‘geological genealogy’

via Current News – Principia Scientific International
http://ift.tt/1kjWLPW

Scientists have tracked the "family history" of a rock back to some of the earliest times on Earth.
Researchers analysed the concentration and distribution of particular types of atoms in the granite to show it must have been recycled from something that existed 4.2 billion years ago. This "parent rock" was very probably basalt of the sort produced on the ocean floor, they say.

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via Current News – Principia Scientific International http://ift.tt/1kjWLPW

March 17, 2017 at 01:21AM