Greenland rocks provide evidence of Earth formation process

Thursday, November 8, 2012 - 09:31 in Earth & Climate

Rocks dating back 3.4 billion years from south-west Greenland's Isua mountain range have yielded valuable information about the structure of the Earth during its earliest stages of development. In these rocks, which witnessed the first billion years of Earth's history researchers have highlighted a lack of neodymium-142, an essential chemical element for the study of the Earth's formation. This deficit supports the hypothesis that between 100 and 200 million years after its formation, the Earth was made up of an ocean of molten magma, which gradually cooled.

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