Open system crystal fractionation and incompatible element variation in basalts

@article{Pankhurst1977OpenSC,
  title={Open system crystal fractionation and incompatible element variation in basalts},
  author={R. J. Pankhurst},
  journal={Nature},
  year={1977},
  volume={268},
  pages={36-38}
}
O'HARA1 has recently proposed an open-system model for the fractional crystallisation of magmas involving continual replenishment of the magma chamber and only partial extraction of the fractionated liquid at each stage. This could produce a series of chemically uniform lavas (such as basalts) with very little resemblance to the primary mantle melt. It is claimed that the model can also explain large variations in the concentrations of incompatible trace elements and their inter-element ratios… CONTINUE READING