is a biweekly peer-reviewed scientific journal published by Elsevier. It was  established in 1950 and is sponsored by the Geochemical Society and the Meteoritical Society. The editor-in-chief is Jeffrey Catalano (Washington University in St. Louis). The journal covers topics in Earth geochemistry, planetary geochemistry, cosmochemistry and meteoritics.
Publishing formats include original research articles and invited reviews and occasional editorials, book reviews, and announcements. In addition, the journal publishes short comments (4 pages) targeting specific articles and designed to improve understanding of the target article by advocating a different interpretation supported by the literature, followed by a response by the author.