A periclase-dolomite-calcite carbonatite from the Oka complex , Quebec , and its calculated volatile composition *

@inproceedings{Treiman2004APC,
  title={A periclase-dolomite-calcite carbonatite from the Oka complex , Quebec , and its calculated volatile composition *},
  author={Allan H Treiman and Eric J. Essene},
  year={2004}
}
The eutectic mineral assemblage calcite-dolomitepericlase-apatite-forsterite-magnesioferrite-pyrrhotite-alabandite in a carbonatite dike within the Oka complex, Quebec, buffers the fugacities (and partial pressures) of all gas species in C-O-H-S-F, assuming vapor saturation. At the inferred eutectic (640 ~ C, 1 kbar), the most important gas species and their partial pressures (bars) were: H20, 882; CO2, 110; H z, 4.6; H2S, 2.7; CO, 0.5; and CH,, 0.1. Oxygen fugacity was near the QFM buffer, l o… CONTINUE READING

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