Liquid immiscibility between trachyte and carbonate in ash flow tuffs from Kenya

@article{Macdonald1993LiquidIB,
  title={Liquid immiscibility between trachyte and carbonate in ash flow tuffs from Kenya},
  author={R. Macdonald and B. Kjarsgaard and I. Skilling and G. R. Davies and D. L. Hamilton and S. Black},
  journal={Contributions to Mineralogy and Petrology},
  year={1993},
  volume={114},
  pages={276-287}
}
  • R. Macdonald, B. Kjarsgaard, +3 authors S. Black
  • Published 1993
  • Geology
  • Contributions to Mineralogy and Petrology
  • Three thin, syn-caldera ash flow tuffs of the Suswa volcano, Kenya, contain pumiceous clasts and globules of trachytic glass, and clasts rich in carbonate globules, in a carbonate ash matrix. Petrographic and textural evidence indicates that the carbonate was magmatic. The trachyte is metaluminous to mildly peralkaline and varies from nepheline- to quartz-normative. The carbonate is calcium-rich, with high REE and F contents. The silicate and carbonate fractions have similar 143Nd/144Nd values… CONTINUE READING
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