Sentence Examples


  • A complex of igneous rocks of different ages covers immense areas in the central Transvaal.
  • Amongst the most interesting features of the Bakony-wald are the volcanic and the igneous rocks.
  • This consists largely of rocks of igneous origin, of which the amygdaloidal diabase of Klipriversberg forms the type.
  • The direction of the great volcanic cones, which rise in an irregular line above it, is not identical with the main axis of the Sierra itself, except near the Mexican frontier, but has a more southerly trend, especially towards Salvador; here the base of many of the igneous peaks rests among the southern foothills of the range.
  • Grits, igneous rocks, ashbeds and limestones may and often do show cleavage.