Statements (24)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological eon
|
| gptkbp:atmosphere |
lacked free oxygen
|
| gptkbp:contains |
gptkb:Eoarchean
gptkb:Mesoarchean gptkb:Neoarchean gptkb:Paleoarchean |
| gptkbp:duration |
1.5 billion years
|
| gptkbp:earthSurface |
dominated by oceans and small protocontinents
|
| gptkbp:endDate |
2.5 billion years ago
|
| gptkbp:followedBy |
gptkb:Hadean
|
| https://www.w3.org/2000/01/rdf-schema#label |
Archean
|
| gptkbp:lifeForm |
stromatolites
prokaryotes |
| gptkbp:nameOrigin |
from Greek 'arkhaios' meaning 'ancient'
|
| gptkbp:notableFor |
emergence of life
formation of early oceans formation of Earth's first stable continental crusts |
| gptkbp:partOf |
gptkb:Precambrian
|
| gptkbp:precededBy |
gptkb:Proterozoic
|
| gptkbp:recognizedBy |
gptkb:International_Commission_on_Stratigraphy
|
| gptkbp:startDate |
4.0 billion years ago
|
| gptkbp:bfsParent |
gptkb:Paul_Komatiite
gptkb:Precambrian |
| gptkbp:bfsLayer |
5
|