Retrieving "Pratt Model" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Crustal Thickness

   Linked via "Pratt model"

   Where $\rhoc$ is the crustal density and $\Delta \rho = \rhom - \rhoc$ is the density contrast between the mantle ($\rhom$) and crust.
   However, observed variations in crustal thickness often deviate significantly from simple isostatic predictions. This requires the application of the Pratt model, which allows for lateral density variations within the crust itself, often implying that the lower crust behaves with a significantly higher viscosity than predicted by simple elastic plate theory (Voss et al., 1995). F…