My main research interest is the deformation of the lithosphere. I use and develop new magnetic approaches to quantify anisotropy, mineral fabrics and finite strain in rocks. Current projects cover a broad spectrum from seismic deformation and collateral magnetic effects in pseudotachylytes to ductile flow and kinematics in the lower continental crust and upper mantle. Most of these projects address problems of mechanical coupling between different lithospheric layers (clutch tectonics). My students and myself enjoy both research in the field and in the laboratory. Our field areas are located in California, the Italian Alps, SW Japan, New Caledonia, Minnesota, Montana and South Africa.