From PhysOrg:

The February 2011 Geosphere includes two articles designated for the latest Geosphere theme, “New developments in Grenville geology: In honor of James McLelland.” Other topics include 3-D characterization of rocks, ash, minerals, lava, and so forth through various technical means: X-ray computed tomography, Stereo Scanning Electron Microscopy, X-ray micro-fluorescence, X-ray diffraction, and terrestrial LiDAR. Also studied: the La Silla and Todos Santos Formations, Mexico, Death Valley, the south-central Andes, and the Nellis Dunes Recreation Area….