Prussian Formation | |
---|---|
Stratigraphic range: Eocene, | |
Type | Geological formation |
Sub-units |
|
Lithology | |
Other | Phosphorite, Amber, Glauconite |
Location | |
Location | Kaliningrad Oblast, Russia |
Type section | |
Region | Sambian Peninsula |
The Prussian Formation, previously known as the Amber Formation, is a geologic formation in Prussia, today mostly Kaliningrad Oblast that dates to the Eocene.[1] It holds 90% of the world's amber supply and Baltic amber is found exclusively in the Prussian Formation.[2]
The Prussian Formation is equivalent to the Obukhov Formation of Ukraine and Belarus.