Quantitative bounds on the size spectrum of isotopic heterogeneity within the mantle

@article{Gurnis1986QuantitativeBO,
  title={Quantitative bounds on the size spectrum of isotopic heterogeneity within the mantle},
  author={Michael Gurnis},
  journal={Nature},
  year={1986},
  volume={323},
  pages={317-320}
}
Isotopic heterogeneities within the mantle, as sampled by oceanic volcanism, are reported to exist on all length scales1–3; unfortunately, this fundamental observation has progressed little beyond the qualitative stage. The isotopic systematics of mid–ocean–ridge basalts (MORBs) and ocean–island basalts (OIBs) are now being used to constrain the efficiency of convective mixing4,5; one datum which could constrain convective mixing calculations is the size spectrum of chemical heterogeneity6,7… CONTINUE READING

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