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The North American Volcanic and Intrusive Rock Database (NAVDAT) is intended as a web-accessible repository for age, chemical and isotopic data from Mesozoic and younger igneous rocks in western North America. Please note: Although this site is fully functional, the content of NAVDAT has been static since 2014 and will not be updated until further notice. All data is still available via the EarthChem Portal http://portal.earthchem.org/
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The database GEOROC (Geochemistry of Rocks of the Oceans and Continents) is a comprehensive collection of published analyses of igneous and metamorphic rocks and minerals. It contains major and trace element concentrations, radiogenic and nonradiogenic isotope ratios as well as analytical ages for whole rocks, glasses, minerals and inclusions. Metadata include geospatial and other sample information, analytical details and references. The database was established by the Max Plank Institute for Chemistry, Mainz. It is now maintained by the Digital Geochemical Data Infrastructure (DIGIS) project at Göttingen University.