Texas Stadium, the now-demolished former home of the Dallas Cowboys in Irving. Irving was founded in 1903 by J.O. Otto Schulze and Otis Brown. It is believed that literary author Washington Irving was a favorite of Netta Barcus Brown, and consequently the name of the town site, Irving, was chosen.
Shale is a fine-grained sedimentary rock that forms from the compaction of silt and clay-size mineral particles that we commonly call mud. This composition places shale in a category of sedimentary rocks known as mudstones. Shale is distinguished from other mudstones because it is fissile and laminated.
slate. 1. a fine-grained rock formed by the metamorphosis of clay, shale, etc., that tends to split along parallel cleavage planes, usu. at an angle to the planes of stratification. 2. a thin piece or plate of this rock or a similar material, used esp. for roofing or as a writing surface. 3. a dull, dark bluish gray.