Fig. 2
From: Optical visualization of the full-field swelling of laminated rocks


Optical microscope images and a thin sectional image of the laminated argillaceous siltstone: (a) showing lamination structure. (b) Open Nicols. (c) Nicols. Ch, chlorite, Zoi, zoisite, Qz, quartz; Bit, biotite; Pl, plagioclase; Mus, muscovite.