Sentence Examples


  • These lava streams, which are of a doleritic character, flowed before the Glacial age, or during its continuance, out of lava cones with gigantic crater openings, such as may be seen at the present day.
  • In the Archean region these are very noticeable near Lake Itasy, in the massif of Ankaratra (an ancient volcano) and in Vakinankaratra (at Betafo, Antsirabe, &c.); while there are numerous outflows of doleritic rocks, probably from faults, along the eastern side of the island and almost parallel with the coast line.