Science
Earth’s early magma oceans detected in 3.7 billion year-old Greenland rocks – The Conversation UK
The rocks provide rare evidence of a time when Earth’s surface was a deep sea of incandescent magma.
Earth hasnt always been a blue and green oasis of life in an otherwise inhospitable solar system. During our planets first 50 million years, around 4.5 billion years ago, its surface was a hellscape of magma oceans, bubbling and belching with heat from Earths interior.
The subsequent cooling of the planet from this molten state, and the crystallisation of these magma oceans into solid rock, was a defining stage in the assembly of our planets structure, the chemistry of its surface, and the formation…
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