title: Global Images of the Earth's Interior.
abstract: The three-dimensional maps of the earth's interior now span regions from the bottom of the crust to the inner core of the earth. Although a wealth of new information on the dynamics of the earth has been discovered, the inner core offers the greatest surprise: it appears to be anisotropic with the axis of symmetry aligned with the axis of rotation.
authors.forename: A M
authors.initials: AM
authors.lastname: Dziewonski
authors.forename: J H
authors.initials: JH
authors.lastname: Woodhouse