Earth’s inner core was formed 1-1.5 billion years ago

7 octubre 2015

There have been many estimates for when the earth’s inner core was formed, but scientists have used new data which indicates that the Earth’s inner core was formed 1-1.5 billion years ago as it ‘froze’ from the surrounding molten iron outer core.
http://www.sciencedaily.com/releases/2015/10/151007135656.htm

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