Fjäcka Formation
Belongs to | Baltic lithostratigraphy (Ordovician) |
Type | lithostratigraphy |
Rank | Formation |
Scope | regional |
Status | formal standard |
Author | Jaanusson |
Year | 1963 |
Age (Ma) | Vormsi Stage |
Index | FIbF |
Alt. index | O3fj |
Date added | 2009-10-02 |
Date changed | 2022-12-01 |
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