Neoarchean Era
E252555
The Neoarchean Era was the final phase of the Archean Eon, marked by significant continental growth, stabilization of cratons, and the emergence of early oxygen-producing photosynthetic life.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Neoarchean Era canonical | 3 |
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
geological era
ⓘ
subdivision of the Archean Eon ⓘ |
| associatedWith |
banded iron formation deposition
ⓘ
development of early sedimentary basins ⓘ early oxygenation of surface environments ⓘ early plate tectonic-style processes ⓘ emergence of shallow marine platforms ⓘ evolution of cyanobacteria-like organisms ⓘ formation of proto-continents ⓘ komatiitic volcanism ⓘ microbial mat ecosystems ⓘ stabilization of Archean cratons ⓘ stromatolite development ⓘ |
| characterizedBy |
development of large stable continental blocks
ⓘ
emergence of oxygen-producing photosynthetic life ⓘ granite–greenstone terranes ⓘ growth of continental lithosphere ⓘ high heat flow from Earth’s interior ⓘ intense volcanic activity ⓘ major crustal differentiation ⓘ significant continental growth ⓘ stabilization of cratons ⓘ widespread greenstone belts ⓘ |
| definedBy | International Commission on Stratigraphy ⓘ |
| duration | approximately 300 million years ⓘ |
| endMarkedBy |
increasing atmospheric oxygen trends
ⓘ
transition to Paleoproterozoic tectonic regimes ⓘ |
| endTime | 2500 million years ago ⓘ |
| follows | Mesoarchean Era ⓘ |
| geologicTimeScaleRank | era ⓘ |
| hasGlobalExtent | Earth ⓘ |
| importantFor |
reconstruction of early atmosphere composition
ⓘ
study of early biosphere development ⓘ study of early continental evolution ⓘ understanding early Earth tectonics ⓘ |
| isFinalEraOf | Archean Eon ⓘ |
| leadsTo | conditions for the Great Oxidation Event ⓘ |
| overlapsWith | late Archean crust-forming events ⓘ |
| partOf | Archean Eon ⓘ |
| precededBy | low atmospheric oxygen levels ⓘ |
| precedes | Paleoproterozoic Era ⓘ |
| startTime | 2800 million years ago ⓘ |
| timeScaleType |
Precambrian Supereon
ⓘ
surface form:
Precambrian
|
| typicalRockRecordIncludes |
chemical sedimentary rocks such as banded iron formations
ⓘ
granitoid plutons ⓘ metamorphosed volcanic sequences ⓘ |
| usedIn | international geologic time scale ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.