About PetDB

PetDB is a searchable database of published geochemical data for igneous & metamorphic rocks including:

• Magmatic rocks generated at mid-ocean ridges, back-arc basins, young seamounts
• Abyssal peridotites
• Old oceanic crust
• Mantle xenoliths
• Ophiolites (under development)

PetDB's content is constantly being updated. The latest data holdings:

• Latest Update: September 11, 2025
• References: 3,867
• Samples:   148,751
• Bulk rock data points: 2,045,236
• Minerals:3,935,973
• Volcanic glasses: 979,722
• Melt inclusions:  410,957
• Total individual values: 7,374,220
• Number of stations: 44,249

More:

• Become part of PetDB community and join the EarthChem mailing list.
• View a map of PetDB samples.
• Check out new features and enhancements in the PetDB release notes.

Questions? Contact us at: info@petdb.org.