Nature Communications (Feb 2017)

Petit-spot as definitive evidence for partial melting in the asthenosphere caused by CO2

  • Shiki Machida,
  • Tetsu Kogiso,
  • Naoto Hirano

DOI
https://doi.org/10.1038/ncomms14302
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 7

Abstract

Read online

The genesis of primitive CO2-rich alkali magma at petit-spot volcanoes is still poorly understood. Here, the authors perform high pressure and temperature experiments to show that the CO2-rich melt is derived from the asthenosphere.