Sentence Examples

  • A complex of igneous rocks of different ages covers immense areas in the central Transvaal.
  • Tremolite-schist and anthophyllite-schist are in nearly all cases the representatives of the ultra-basic igneous rocks such as peridotite in regions of high metamorphism.
  • It is certain, however, that most obsidians are very acid or rhyolitic. The dark, semiopaque glassy forms of the basic igneous rocks are known as tachylytes.
  • 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.