By the latter part of the Coal Age, this continent had begun to crack up and the pieces to drift apart (White and Renner).
Useful english dictionary. 2012.
coal age — or coal age, the Carboniferous period, during which most of the coal deposits were formed: »By the latter part of the Coal Age, this continent had begun to crack up and the pieces to drift apart (White and Renner) … Useful english dictionary
coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… … Universalium
Coal mining — Men leaving a UK colliery at the close of a shift Surface coal mining in Wyo … Wikipedia
coal ball — a spherical mass of mineral and plant material embedded in coal beds, ranging in size from that of a pea to that of a boulder. [1735 45] * * * ▪ paleontology a lump of petrified plant matter, frequently spheroid, found in coal seams of the… … Universalium
Coal County, Oklahoma — Location in the state of Oklahoma … Wikipedia
Coal Run Village, Kentucky — City Location of Coal Run Village, Kentucky … Wikipedia
Coal City, West Virginia — CDP Coal City Club, 1974 … Wikipedia
Coal Black and de Sebben Dwarfs — Merrie Melodies series Coal Black title card. Directed by … Wikipedia
Coal Grove, Ohio — Village Location of Coal Grove, Ohio … Wikipedia
Coal Fork, West Virginia — CDP Location of Coal Fork, West Virginia … Wikipedia
