American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Containing, made of, or resembling clay; clayey.
Century Dictionary and Cyclopedia
- Of the nature of or resembling clay.
- Containing a considerable amount of clayey matter: as, argillaceous earth.
- adj. pertaining to clay; made of, containing, or resembling clay
GNU Webster's 1913
- adj. Of the nature of clay; consisting of, or containing, argil or clay; clayey.
- adj. resembling or containing clay
- From the Latin argillaceus, from argilla ‘clay’, from Greek αργιλλος. (Wiktionary)
- From Latin argillāceus : argilla, argil; see argil + -āceus, -aceous. (American Heritage® Dictionary of the English Language, Fourth Edition)
“Hydraulic limestones, sometimes referred to as argillaceous limestones have a high proportion of clay and silicia (15-20 %) and can be either high calcium or magnesian.”
“These siliceous sand-rocks are either held together by a siliceous cement, or have a greater or less portion of clay in them, which in some acts as a cement to the siliceous crystals, but in others is in such great abundance that in burning them they become an imperfect porcelain and are then used to repair the roads, as at Chesterfield in Derbyshire; these are called argillaceous grit by Mr. Kirwan.”
“Besides metallic bolts, wooden slot-and-wedge anchors were applied in the U.S.A. mainly in places with soft hanging such as argillaceous and quarzitic shalestone.”
“Geologically, the island consists of gneiss and argillaceous schists, with no trace of fossils, showing that the island is, like the Falkland Islands, a surviving fragment of some greater land-mass now vanished, most probably indicating a former extension of the Andean system.”
“The Purcell – Cabinet – North Bitterroot Mountains ecoregion is mantled by volcanic ash and glacial deposits and is underlain by quartzite and argillaceous rocks.”
“The surface geology of this ecoregion consists mostly of extremely rugged limestone mountains, with an additional section of argillaceous sedimentary rock on Biak.”
“Mineralogically, these oil shales are marls or argillaceous limestones, which may be associated with volcanic tuffs and evaporites.”
“Mr. Waterhouse only saw Chambers Pillar from a distance, but he had an opportunity of examining a smaller hill of the same character, and found it to be composed of a soft loose argillaceous rock, at the top of which was a thin stratum of a hard siliceous rock, much broken up.”
“The geological formation of the country we had passed through, consisted in the higher ranges of an argillaceous rock, of quartz, or of ironstone.”
“In the lower or front hills the rock was argillaceous, of a hard slaty nature, and inclined at an angle of about 45 degrees from the horizontal.”
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