Journal Highlights

The Earth’s Elastic Crust

Editors' Vox—

The structural properties of rock on a micro scale, such as crystallographic orientation, grain shape and mineral composition, can have an impact on the macro scale, for example, the ways in which rock deforms under stress, at elevated pressure and temperature. A review article recently published in Reviews of Geophysics discussed the seismic and elastic properties of the Earth’s continental crust, providing a summary of the single crystal elastic properties of crustal minerals, and in what tectonic situation these minerals are expected to be important. The editors asked the authors to explain some of the concepts and methods relating to this research field, and their broader application....[more]

by Bjarne Almqvist and David Mainprice


Editors' Highlight—Seismic properties and anisotropy of the continental crust: Predictions based on mineral texture and rock microstructure

This review paper discusses the elastic properties of the continental crust providing a summary of the single crystal elastic properties of crustal minerals, and in what tectonic situation these minerals are expected to be important. This study helps better understand the role of intrinsic mineral properties (e.g., composition) and extrinsic bulk properties (e.g., fractures) have on seismic signals and hence how seismic data are interpreted.