GEOROC (Geochemistry of Rocks of the Oceans and Continents) is intended to become a global geochemical database containing published chemical and isotopic data as well as extensive metadata for rocks, minerals and melt/fluid inclusions. GEOROC currently covers igneous rocks from island arcs, oceanic islands, and large igneous provinces such as seamounts, oceanic plateaus, submarine ridges, and oceanic and continental flood basalts. It contains thousands of entries for whole rock, mineral, and inclusion geochemical data. The database can be searched by bibliography, tectonic setting, geographic coordinates, chemistry, or petrography. The results of a customized query can be directly downloaded in an Excel compatible (comma delimited text) format.