Effects of water on the α-β transformation kinetics in San Carlos Olivine

Tomoaki Kubo, Eiji Ohtani, Takumi Kato, Toru Shinmei, Kiyoshi Fujino

Research output: Contribution to journalArticlepeer-review

103 Citations (Scopus)


In experiment at 13.5 gigapascals and 1030°C, the growth rate of wadsleyite, which forms from transformation of olivine, was substantially enhanced by the presence of water. Wadsleyite had a low dislocation density and subgrain boundaries in wet runs. Water enhanced the dislocation recovery in wadsleyite and therefore caused inelastic relaxation of the localized pressure drop associated with the transformation, resulting in an increase of the growth rate in wet runs. These results imply that even a small amount of water of 0.05 weight percent can weaken wadsleyite in the mantle.

Original languageEnglish
Pages (from-to)85-87
Number of pages3
Issue number5373
Publication statusPublished - Jul 3 1998
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General


Dive into the research topics of 'Effects of water on the α-β transformation kinetics in San Carlos Olivine'. Together they form a unique fingerprint.

Cite this