Research in the X-ray CT lab

Images from the X-ray Computed Tomography lab at the University of Minnesota.

 

Basalt core drilled from a piece of Columbia River Basalt collected in Washington.  XRCT scans before and after flow-though carbon sequestration experiments are used to document changes in pore space geometries produced by mineral dissolution and/or precipitation. Sample size is approximately .5 in X 1 in.

Complexly layered lawsonite eclogite and blueschist (Sivrihisar, Turkey). The garnet-rich zone near the top of the image is a lawsonite-garnet vein. ( Sample size is 52 x 46 mm )

3D reconstruction of crania and mandibles of Microtus ochrogaster haydenii (right). The left images show slices through the 3D volume. These will be used to analyze tooth morphology to predict diet. Sample courtesy of David Fox at University of Minnesota.

Synthetic olivine aggregate deformed in torsion. The sample was fabricated with an internal Ni foil marker, which can be used to measure local variations in the amount of deformation. Sample size is approximately 3 mm X 10 mm. The experiment was done by Lars Hansen at the Rock and Mineral Physics Lab located at the University of Minnesota. (Left: 3D volume rendering of olivine aggregate. Right: 3D volume rendering of the nickel foil marker.)

3D reconstruction of globular phosphatic microfossils from the Ediacaran Doushantuo Formation, Guizhou Province, China; from the research work of post-doc Dan Jones in the Minnesota Isotope Lab