Letter | Published:

Influence of mantle CO2 in the generation of carbonatites and kimberlites

Nature volume 257, pages 297299 (25 September 1975) | Download Citation

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Abstract

THE explanation of why partial fusion of mantle peridotite sometimes yields basalts, sometimes kimberlites and sometimes carbonatites is given by the phase relationships in the system CaO–MgO–SiO2–CO2. The key is the intersection of a sub-solidus carbonation reaction with the solidus, which introduces carbonates as primary minerals alongside silicates on the surface of the liquidus.

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Author information

Affiliations

  1. Department of Geophysical Sciences, University of Chicago, Chicago, Illinois, 60637

    • PETER J. WYLLIE
  2. Department of Geology, National Taiwan University, Taipei, Taiwan

    • WUU-LIANG HUANG

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DOI

https://doi.org/10.1038/257297a0

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