Archean
General info
| Belongs to |
Precambrian
|
| Type | chronostratigraphy |
| Rank | Eonothem |
| Scope | global |
| Age top (Ma) | 2500 |
| Age base (Ma) | 4000 |
| Index | AR |
| Date changed | 2020-10-17 |
| Stratigraphy | Index | Index add'l | Type | Rank | Scope | Belongs to | Age base (Ma) | Age top (Ma) | Age |
|---|---|---|---|---|---|---|---|---|---|
| Eoarchean | EA |
chronostratigraphy
|
Erathem
|
global
| Archean | 4000 | 3600 | ||
| Paleoarchean | PA |
chronostratigraphy
|
Erathem
|
global
| Archean | 3600 | 3200 | ||
| Mesoarchean | MA |
chronostratigraphy
|
Erathem
|
global
| Archean | 3200 | 2800 | ||
| Neoarchean | NA |
chronostratigraphy
|
Erathem
|
global
| Archean | 2800 | 2500 |
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