Fracturing olivine during carbonation reaction. Crack forming in the cup wall during the carbonation experiment. The movie shows a vertical radial section through the sample. Zhu et al., GRL, 2016.
Nanotomography experiments show wormhole-like dissolution channels formed during olivine carbonation. Field of view is 0.02 mm across. Voxel edge size is 57 nm. Greyscale corresponds to voxel CT number and red structures are thresholded pores. Lisabeth et al., GRL, 2016.
Initiation and growth of a shear fracture in a Fontainebleau sandstone sample deformed at a confining pressure of 10MPa. Renard et al., EPSL, 2017.
Hydration-induced fractures disintegrate a periclase (MgO) sample. At 180°C and 10MPa, this reaction lasted ~90minutes. Zheng et al., G3, 2018.
This video is a graphic demonstration of the workflow for quantifying permeability 3D melt distribution of a partially molten peridotite using the digital rock physics approach. 1) Phase contrast X-ray imaging provides high resolution 3D microstructures. 2) Statistical analyses of the texture can be performed in either 3D or 2D at any orientations. 3) Melt geometry and connectedness can be quantified after segmenting melt and solid. 4) Percolation network of melt tubes and nodes can be constructed based on the segmented 3D melt image. 5) Virtual flow-through experiments can be performed on the digital rock defined by the 3D melt distribution of an actual rock. 6) Fluid flux, permeability as well as electrical conductivity can be calculated.