About the Cover
ABOUT THE COVER: The Earth, with a cutout revealing schematic features of the mantle and core. Colors in the mantle indicate seismic velocity heterogeneity, with red tones being slower than average velocity (possibly warm, buoyant or chemically distinct material) and bluish tones being faster than average velocity (possibly cold, sinking material and post-perovskite phase in the very deep mantle). The spirals represent the fluid motions in the outer liquid core that generate the magnetic field. ARTWORK COURTESY OF ED GARNERO, ARIZONA STATE UNIVERSITY.
[Table of Contents]
Copyright © 2008 by Mineralogical Society of America
