Implications of the carbon isotope and mineral inclusion record for the formation of diamonds in the mantle underlying a mobile belt: Venetia, South Africa

@inproceedings{Deines2001ImplicationsOT,
  title={Implications of the carbon isotope and mineral inclusion record for the formation of diamonds in the mantle underlying a mobile belt: Venetia, South Africa},
  author={Peter Deines and Fanus Viljoen and Jeff W. Harris},
  year={2001}
}
A total of 199 diamonds from the Venetia kimberlite, South Africa, whose mineral inclusion chemistry had already been measured, were analyzed for their carbon isotopic composition. Silicate inclusions in these diamonds either belong to a peridotitic (P-Type), an eclogitic (E-Type) or transitional, websteritic (W-Type), paragenesis. The carbon isotopic composition of 161 P-Type diamonds ranges from δ13C = −2.23 to −18‰ vs. PDB. The large number of samples available and the wide range in δ13C… CONTINUE READING

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