The Bullen parameter quantifies the deviation of the density distribution of these structures from the AdamsWilliamson equation.
The Bullen parameter quantifies the deviation of the density distribution of these structures from the AdamsWilliamson equation. Song and Richards first showed evidence of anisotropy in a part of this structure, which is partially a result of differential rotation. A restriction on the age of formation of these structures can be determined by hafnium/tungsten dating because hafnium is a lithophile and tungsten is a siderophile. Seismic waves traversing this (*) entire structure are denoted with both a capital K and I. Above the upper boundary of this structure lies post-perovskite in the D-double prime layer. These structures are the location of the dynamo that supports a planet's magnetic field. For 10 points, name these structures that form as a consequence of iron and nickel being heavier than silicate minerals, concentrating them in the center of a rocky planet.
The Bullen parameter quantifies the deviation of the density distribution of these structures from the AdamsWilliamson equation.
planetary cores [or: outer core, inner core, Earth's core; prompt on: Earth's interior]