You are currently viewing the summary.
View Full TextLog in to view the full text
AAAS login provides access to Science for AAAS members, and access to other journals in the Science family to users who have purchased individual subscriptions.
More options
Download and print this article for your personal scholarly, research, and educational use.
Buy a single issue of Science for just $15 USD.
Summary
Knowing what minerals form at different depths in the Earth's mantle is crucial for fully understanding processes such as plate tectonics and volcanism. Since the 1930s it has been known that some of this information can come from study of primitive meteorites, which may contain a record of the early solar system. In his Perspective, Stöffler discusses recent discoveries of pyroxene in meteorites by groups in Japan, the United States, and Europe. The particular crystal structures--ilmenite and perovskite--are also important constituents of Earth's lower mantle.
