Probing the Accumulation History of the Voluminous Toba Magma

  title={Probing the Accumulation History of the Voluminous Toba Magma},
  author={Jorge A. Vazquez and M. R. Reid},
  pages={991 - 994}
The age and compositional zonation in crystals from the Youngest Toba Tuff record the prelude to Earth's largest Quaternary eruption. We used allanite crystals to date and decipher this zoning and found that the crystals retain a record of at least 150,000 years of magma storage and evolution. The dominant subvolcanic magma was relatively homogeneous and thermally stagnant for ∼110,000 years. In the 35,000 years before eruption, the diversity of melts increased substantially as the system grew… 

The Toba Caldera Complex

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