Hadean eon

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Noun1.Hadean eon - the earliest eon in the history of the Earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
"So it appears that such events did not occur during these early stages of Earth's history," lead researcher Antony Burnham said in the statement from ANU, referring to the (https://www.britannica.com/science/Hadean-Eon) Hadean eon  that roughly spanned our planet's first 500 million years.
The new research reveals that asteroidal collisions not only severely altered the geology of the Hadean eon Earth, but likely also played a major role in the subsequent evolution of life on Earth as well.
The period is called Hadean eon after the Greek god of the underworld- Hades- for its hot and inhospitable atmosphere.