Pore-structure characterisation of tectonically deformed shales: a case study of Wufeng-Longmaxi Formation in western Hunan Province, southern China

The impacts of tectonic deformation on pore structure of the Wufeng-Longmaxi shales in southern China were studied on tectonically deformed shales. Core description, thin-section observation, total organic carbon, X-ray diffraction, low-pressure gas (N2 and CO2) adsorption, mercury intrusion capillary pressure and field emission-scanning electron microscopy experiments were performed. The undeformed shale (UDS), brittle deformed shale (BDS) and...