PETDB: Petrological Database of the Ocean Floor

PetDB is a data management and information system for geochemical and petrological data of igneous and metamorphic rocks from the ocean floor generated at spreading centers (mid-ocean ridges, back-arc basins, young near-axis seamounts, and old oceanic crust). PetDB contains all types of published analytical data measured on rocks, glasses, minerals, and melt inclusions (major and trace element data, stable and radiogenic isotope ratios, noble gas data, etc.). PetDB currently contains more than 700,000 chemical values for more than 30,000 rock samples from all of the Earths oceans.