Crustal structure, which can vary greatly over relatively short length scales depending on the tectonic setting, has the potential to significantly influence the data used to infer the deeper features of the Earth. In particular, commonly implemented teleseismic methods are sensitive to crustal velocity structure but are invariably incapable of resolving it. Moho depth has a first‐order effect on travel‐time residuals of teleseismic body waves (>1  s variation; e.g., Waldhauser et al., 2002); and, for typical Rayleigh‐wave periods of <150  s, the crust can contribute 50% or more to the surface‐wave‐derived velocity variations (Ritsema et al.,...

First Page Preview

First page PDF preview
You do not currently have access to this article.