Statements (27)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological eon
|
| gptkbp:atmosphere |
anoxic
|
| gptkbp:dividedInto |
gptkb:Eoarchean_Era
gptkb:Mesoarchean_Era gptkb:Neoarchean_Era gptkb:Paleoarchean_Era |
| gptkbp:dominantLifeForm |
gptkb:Bacteria
prokaryotes |
| gptkbp:duration |
about 1.5 billion years
|
| gptkbp:endDate |
about 2.5 billion years ago
|
| gptkbp:firstSupercontinent |
gptkb:Ur
gptkb:Vaalbara |
| gptkbp:followedBy |
gptkb:Hadean_Eon
|
| https://www.w3.org/2000/01/rdf-schema#label |
Archaean Eon
|
| gptkbp:notableFor |
origin of life
development of early atmosphere appearance of stromatolites formation of first continents |
| gptkbp:oceanPresence |
yes
|
| gptkbp:oxygenLevel |
very low
|
| gptkbp:partOf |
gptkb:Precambrian_Supereon
|
| gptkbp:precededBy |
gptkb:Proterozoic_Eon
|
| gptkbp:significantEvent |
Great Oxygenation Event began near end
|
| gptkbp:startDate |
about 4 billion years ago
|
| gptkbp:tectonicActivity |
high
|
| gptkbp:bfsParent |
gptkb:Last_Universal_Common_Ancestor
|
| gptkbp:bfsLayer |
8
|