释义 |
Hadean aeon ThesaurusNoun | 1. | Hadean aeon - 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 lifeHadean, Hadean eon, Hadean time, Priscoan, Priscoan aeon, Priscoan eon |
Hadean aeon
Synonyms for Hadean aeonnoun 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)Synonyms- Hadean
- Hadean eon
- Hadean time
- Priscoan
- Priscoan aeon
- Priscoan eon
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