Me and Paul Hoffman (right) sampling for paleomagnetics on Great Slave Lake (Northwest Territories, Canada).

Infamous "Joe drilling, Ross sitting" photo of me and my current postdoctoral advisor, Joseph Kirschvink (http://web.gps.caltech.edu/~jkirschvink/), sampling the Cretaceous Scaglia Rossa limestone of the Italian Apennines (research supported by NSF Geophysics grant EAR 1114432).

Sandstone horizon in ca. 80 million-year-old shale of James Ross Island on Rabot Point in Antarctica (research supported by the NSF Polar Programs).

Wouter Bleeker of the Geological Survey of Canada pioneers the study of diabase dike swarms to reconstruct ancient supercontinents (www.supercontinent.org). My PhD work in the Slave craton shown here was supported in part by the GSC.

Sharing geology with students is rewarding for everyone. Graduate and undergraduate students from Caltech, St. Andrews, and Yale have over the years contributed to our research in the Italian Apennines with Alessandro Montanari (center) of the Osservatorio Geologico di Coldigioco (supported by NSF Geophysics grant EAR 1114432).