Nature Communications (Jan 2019)

Nb/Ta systematics in arc magma differentiation and the role of arclogites in continent formation

  • Ming Tang,
  • Cin-Ty A. Lee,
  • Kang Chen,
  • Monica Erdman,
  • Gelu Costin,
  • Hehe Jiang

DOI
https://doi.org/10.1038/s41467-018-08198-3
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 8

Abstract

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It is unclear why the crust among many arcs is so silica rich when there is a missing mafic component. Here the authors compile a global evaluation of Nb/Ta and examine xenoliths from Arizona to derive a model of why Nb/Ta fractionation is favored in the crust.