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