Sentence Examples


  • The Devonian system includes a complex series of deposits, which are of most interest in eastern Australia.
  • The Lower Devonian beds are in the main terrestrial, or coarse littoral deposits, and volcanic rocks.
  • The Upper Devonian was a period of marine retreat; the crustal disturbances of the Lower Devonian were renewed and great quartz-pebble beaches were formed on the rising shore lines, producing the West Coast Range conglomerates of Tasmania, and the similar rocks to the south-east of Mansfield in Victoria.
  • The coal-seams must have been formed in wellwatered, lowland forests, at the foot of a high mountain range, built up by the Devonian earth movements.
  • The oldest rocks of Elba consist of schist and serpentine which in the eastern part of the island are overlaid by beds containing Silurian and Devonian fossils.
 

How would you define Devonian? Add your definition here.

comments powered by Disqus