Statements (12)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological formation
|
| gptkbp:endDate |
2300 million years ago
|
| gptkbp:followedBy |
gptkb:Rhyacian
|
| https://www.w3.org/2000/01/rdf-schema#label |
Siderian
|
| gptkbp:notableEvent |
banded iron formations widespread
beginning of significant atmospheric oxygen increase |
| gptkbp:partOf |
gptkb:Paleoproterozoic_Era
|
| gptkbp:precededBy |
gptkb:Archean_Eon
|
| gptkbp:startDate |
2500 million years ago
|
| gptkbp:bfsParent |
gptkb:Neoarchean
gptkb:Paleoproterozoic |
| gptkbp:bfsLayer |
7
|