Category:Hadean
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Hadean | Archean | Proterozoic | Phanerozoic
English: The Hadean is the geologic eon before the Archean. It extends back to the Earth's formation, and ended roughly 3.8 billion years ago (3800 Ma), though the date varies according to different sources. The name "Hadean" derives from Hades, Greek for "unseen" or "Hell" and suggesting the underworld or referring to the conditions on Earth at the time.
日本語: 冥王代
Hadean Eon | Succeeded by Archean Eon |
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first eon of geological time, beginning with the formation of the Earth about 4.6 billion years ago | |||
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Instance of | eon, eonothem | ||
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Part of | Precambrian (1) | ||
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Start time | 4,601st millennium BC | ||
End time | c. 4,001st millennium BC | ||
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Subcategories
This category has the following 2 subcategories, out of 2 total.
Media in category "Hadean"
The following 7 files are in this category, out of 7 total.
- Earearth.png 540 × 540; 420 KB
- Earth Eons Collage.png 364 × 219; 223 KB
- Hadean.png 2,092 × 1,124; 4.79 MB
- Jack Hills detrital zircons BSE micrographs.jpg 886 × 1,129; 373 KB
- Lunar cataclysm.jpg 3,000 × 3,772; 1.72 MB
- Precambrian zh tm.png 175 × 258; 3 KB
- Zircon world map.pdf 1,770 × 1,179, 2 pages; 6.32 MB