argillaceous Descibing something that consists of very fine grains, such as those associated with clay, shale, or silt. Argillaceous rocks, such as kaolinite, are sedimentary rocks the particles of which are similar in size to those in clay or silt. Related category GEOLOGY AND PLANETARY SCIENCE Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |