Prussian Formation

Prussian Formation
Stratigraphic range: Eocene, 56–35 Ma
Outcrop of the Prussian Formation in Yantarny, Russia
TypeGeological formation
Sub-units
  • Blue Earth Member
Lithology
OtherPhosphorite, Amber, Glauconite
Location
LocationKaliningrad Oblast, Russia
Type section
RegionSambian 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.

  1. ^ Moser, Marina; Burks, Roger A.; Ulmer, Jonah M.; Heraty, John M.; Kamp, Thomas van de; Krogmann, Lars (2021-05-25). "Taxonomic description and phylogenetic placement of two new species of Spalangiopelta (Hymenoptera: Pteromalidae: Ceinae) from Eocene Baltic amber". PeerJ. 9: e10939. doi:10.7717/peerj.10939. ISSN 2167-8359. PMC 8162234. PMID 34113480.
  2. ^ G.s, Kharin; N.p, Lukashina (2002). "ACCUMULATION CONDITIONS AND CORRELATION OF THE UPPER EOCENE AMBER-BEARING PRUSSIAN FORMATION, KALININGRAD REGION". Geology Science.ru. ISSN 0869-5938.