GEOROC

The  open-access database GEOROC is a comprehensive collection of published whole  rock and mineral analyses of volcanic rocks and mantle xenoliths from various  geological settings. IAG (International Association of Geoanalysis) promotes  the interests and supports the professional needs of those involved in the  analysis of geological and environmental materials.

georoc.mpch-mainz.gwdg.de/georoc/
www.geoanalyst.org/