Journal Highlights

The distribution and composition of high-velocity lower crust across the continental U.S.: comparison of seismic and xenolith data and implications for lithospheric dynamics and history

Editors’ Highlight—

      

This paper presents an analysis of the crustal structure beneath the continental US, combining geochemistry with geophysics. The authors use receiver functions, Vs derived from surface waves, and xenoliths to infer the composition and velocity structure of the lower crust. Understanding of the composition and evolution of the lower crust is important for understanding tectonic evolution, and it also plays a major role in the strength (or lack thereof) of the lithosphere.