Toba ash layers in the South China Sea: Evidence of contrasting wind directions during eruption ca. 74 ka: Comment and Reply: COMMENT

Bühring et al. (2000) reported that the ash layers in two cores from the South China Sea dated ca. 74 ka are distinct from the volcanic glass supplied from the Philippines and the northern South China Sea, but are almost identical in terms of the chemical compositions to the Toba ash. They reached this conclusion from the similarities they found in the age and chemical compositions of the glass shards between the tephra layers in their cores and those in the Youngest Toba Tuff eruption.

Studies of the late Quaternary tephra layers in the South China Sea area are quite...