Sentence Examples

  • They are mostly true felspar basalts, but a few contain nepheline in addition to the felspar.
  • 1); in others it is scarce and the rocks resemble trachytes containing a little nepheline (trachytoid phonolites).
  • Leucite and nepheline lavas are here abundant.
  • Nepheline basalts and liparites occur at Dombe Grande.
  • Eruptive rocks of Palaeozoic age are met with in the Kola peninsula (nepheline-syenites) and at Kuusamo (syenite).