"GERU"@en . . "stable"@en . "56.0"^^ . . "Bedrock. Occurs both onshore and offshore. Formed during the Eocene Epoch (Palaeogene Period) (56-33.9 Ma BP)."@en . . "33.9"^^ . "Eocene Rocks (Undifferentiated)"@en . . "Eocene Rocks (Undifferentiated)"@en . .