PetDB - The Petrological Database of the Ocean Floor PROJECT MANAGEMENT: Lamont-Doherty Earth Observatory (LDEO), executed cooperatively with the Center for International Earth Science Information Network (CIESIN), both at Columbia University
DESCRIPTIONS: PetDB compiles, archives, and serves analytical data for whole rocks, volcanic glasses, minerals, and melt inclusions, for magmatic and metamorphic rocks of the oceanic crust, primarily basalts and abyssal peridotites. PetDB contains major and trace element data, and isotope ratios for samples from mid-ocean ridges, back-arc basins, young near-ridge seamounts, and old oceanic crust. The data system allows users to generate customized datasets that contain any combination of chemical parameters selected by the user for any number and selection of samples, integrated from any number of sources into a single data table.