How To Use Nephelinite In A Sentence

  • The composition studied has very low albite and is classified as transitional between olivine nephelinite and nepheline-rich basanite.
  • Magma modelling showed that olivine nephelinite and basanite could form by different degrees of partial melting of the mantle source, with amphibole, garnet, olivine and clinopyroxene in the residuum.
  • The lava flows within the pyroclasts are composed of nephelinite and phonolite.
  • The nephelinites are conformably overlain by picrites and picritic basalts of the Letaba Formation, although in the southern Lebombo the picrites directly overlie the Clarens Formation.
  • Geochemically, the pyroxene nephelinite is highly enriched in LILE compared with the first one.
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  • Another New Zealand locality for this type of nephelinite is in the Auckland Domain.

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