Sentence Examples

  • Along Hudson Bay shore there is a strip of similar rocks, and a long row of small islands of the same age, with great sheets of trap or diabase forming the tops of the hills.
  • All the volcanic rocks of these islands are submarine stratified tuffs which are penetrated here and there by andesite or diabase dikes.
  • In the western portion of Mainland, in Northmavine, -there is a considerable tract of rocks of this age which are formed largely of intrusive diabase-porphyrite; similar volcanic rocks occur in Papa Stour.
  • Sheets of diabase, apparently volcanic flows, and numerous dykes interfere with the regularity of the stratification.
  • This consists largely of rocks of igneous origin, of which the amygdaloidal diabase of Klipriversberg forms the type.