Carbonate Melts and Carbonatites

@inproceedings{Jones2012CarbonateMA,
  title={Carbonate Melts and Carbonatites},
  author={Adrian P. Jones},
  year={2012}
}
Carbonatites are familiar to students of petrology as rare igneous rocks formed predominantly of carbonate, whose only modern expression is a single active volcano that erupts strongly alkaline carbonate lavas with no direct match in Earth’s geological record (see Lengai movie in the electronic version of this chapter or on the MSA RiMG website). Based on their Sr-Nd-Pb isotopic data, stable isotopic compositions, noble gases, and experimental phase equilibria, they are derived from the mantle… Expand
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Tetrahedrally coordinated carbonates in Earth's lower mantle.
TLDR
Experimental evidence is presented that under the sufficiently high pressures and high temperatures existing in the lower mantle, ferromagnesian carbonates transform to a phase with tetrahedrally coordinated carbons, which may have significant implications for carbon reservoirs and fluxes, and the global geodynamic carbon cycle. Expand
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TLDR
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