The argillaceous sandstones are very fine grained and moderately well sorted.    From LearnThat.org.  [yourdictionary.com]

argillaceous rocks.    From Wordnet, Princeton University. 

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.    From Wordnik.com.  [1. General Information] Reference

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.    From Wordnik.com.  [5.1 Rigid support in drifts and stopes] Reference

Grown on argillaceous soil Grown in calcareous soil.    From Wordnik.com.  [The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c.] Reference

The damp argillaceous soil gave way under their feet.    From Wordnik.com.  [In Search of the Castaways] Reference

It must also not be full of argillaceous and iron-oxide infillings.    From Wordnik.com.  [The American Architect and Building News, Vol. 27, Jan-Mar, 1890] Reference

Fossiliferous argillaceous limestone, containing traces of lead sulphide.    From Wordnik.com.  [Scientific American, Volume XLIII., No. 25, December 18, 1880 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.] Reference

Mr. Prinsep says the two first were chiefly of sand, and the third somewhat argillaceous.    From Wordnik.com.  [The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c.] Reference

The Chalk rises abruptly from the low lying argillaceous plain to form the Chiltern Hills.    From Wordnik.com.  [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"] Reference

The soil upon this section is principally a red argillaceous loam, similar to that in the Red.    From Wordnik.com.  [The Continental Monthly, Vol. 1, No. 3, March, 1862] Reference

Mineralogically, these oil shales are marls or argillaceous limestones, which may be associated with volcanic tuffs and evaporites.    From Wordnik.com.  [The Democratic Party's email attacking Jerome Corsi (author of the #1 selling anti-Obama book).] Reference

The coarse-grained specimen is sandstone, that of medium grain is argillaceous sandstone, and the fine-grained one is calcareous clay.    From Wordnik.com.  [Aboriginal Remains in Verde Valley, Arizona Thirteenth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1891-92, Government Printing Office, Washington, 1896, pages 179-262] Reference

Once buried in the argillaceous mud, the bones no longer underwent the action of the running water, and their preservation was thence secured.    From Wordnik.com.  [Scientific American Supplement, No. 508, September 26, 1885] Reference

This soil, which is highly argillaceous, and strongly tinged with tritoxyde of iron, is formed by the decomposition of gneiss or granite rocks.    From Wordnik.com.  [The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c.] Reference

Commentry, as well as certain others, such as those of Bezenet, Swansea, etc., contain quite a large quantity of coal gravel in sandstone or argillaceous rocks.    From Wordnik.com.  [Scientific American Supplement, No. 481, March 21, 1885] Reference

In that location and over a large stretch of surrounding country-side the earth's outer crust is mainly argillaceous with here and there an outcrop of sandstone.    From Wordnik.com.  [Men of Affairs] Reference

The surface geology of this ecoregion consists mostly of extremely rugged limestone mountains, with an additional section of argillaceous sedimentary rock on Biak.    From Wordnik.com.  [Biak-Numfoor rain forests] Reference

The Purcell – Cabinet – North Bitterroot Mountains ecoregion is mantled by volcanic ash and glacial deposits and is underlain by quartzite and argillaceous rocks.    From Wordnik.com.  [Ecoregions of Idaho (EPA)] Reference

In no argillaceous soil can the potato be grown to perfection as regards quality.    From Wordnik.com.  [The $100 Prize Essay on the Cultivation of the Potato. Prize offered by W. T. Wylie and awarded to D. H. Compton. How to Cook the Potato, Furnished by Prof. Blot.] Reference

Iron Works, where it was employed in mixture with other ironstones of the argillaceous class.    From Wordnik.com.  [Industrial Biography, Iron Workers and Tool Makers] Reference

The rock of Righi is composed of pebbles of different kinds, joined by a red argillaceous gluten.    From Wordnik.com.  [On the Old Road, Vol. 2 (of 2) A Collection of Miscellaneous Essays and Articles on Art and Literature] Reference

The solid surface of the earth is mainly composed of gravel, of calcareous, and argillaceous strata.    From Wordnik.com.  [The World's Greatest Books — Volume 15 — Science] Reference

Thus argillaceous soils may be divided into three varieties, viz. -- clay, clay loam, and argillaceous alluvial.    From Wordnik.com.  [Thomas Davis, Selections from his Prose and Poetry] Reference

After the sands follow successively argillaceous, arable, and garden ground, then humus, which occupies the lowest rank.    From Wordnik.com.  [The Earth as Modified by Human Action] Reference

The soil of this bottom is an argillaceous or a silicious loam, according as clay or sand happens to predominate in its formation.    From Wordnik.com.  [A New Guide for Emigrants to the West] Reference

The principal iron-mine train of the district divides into a lower or more crystalline, and an upper or more argillaceous and sandy stratum.    From Wordnik.com.  [The Forest of Dean An Historical and Descriptive Account] Reference

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.    From Wordnik.com.  [Journals of Expeditions of Discovery into Central Australia and Overland from Adelaide to King George's Sound in the Years 1840-1: Sent By the Colonists of South Australia, with the Sanction and Support of the Government: Including an Account of the Manners and Customs of the Aborigines and the State of Their Relations with Europeans — Complete] Reference

I have in vain sought this ancient layer of sand, -- decidedly of the same era with the argillaceous bed which overlies it, -- for aught organic.    From Wordnik.com.  [The Cruise of the Betsey or, A Summer Ramble Among the Fossiliferous Deposits of the Hebrides. With Rambles of a Geologist or, Ten Thousand Miles Over the Fossiliferous Deposits of Scotland] Reference

This argillaceous earth mixed with mustard oil is locally used for clay and when rose-leaves and perfumes are used, it makes a tolerable wash-ball.    From Wordnik.com.  [Arabian nights. English] Reference

Intestinal absorption is increased by astringent vegetables, as rhubarb, galls; and by earthy salts, as alum; and by argillaceous and calcareous earth.    From Wordnik.com.  [Zoonomia, Vol. II Or, the Laws of Organic Life] Reference

Sandstone, volcanic tufa, ignis fatuus, and bicarbonate of hornblende, superimposed upon argillaceous shale, and contains the prints of prehistoric man.    From Wordnik.com.  [Mark Twain's Letters — Volume 4 (1886-1900)] Reference

The paste of which this coiled ware was composed is coarse, with argillaceous grains scattered through it; but it was well fired and is still hard and durable.    From Wordnik.com.  [Archeological Expedition to Arizona in 1895 Seventeenth Annual Report of the Bureau of American Ethnology to the Secretary of the Smithsonian Institution, 1895-1896, Government Printing Office, Washington, 1898, pages 519-744] Reference