Hydrous olivine unable to account for conductivity anomaly at the top of the asthenosphere

  title={Hydrous olivine unable to account for conductivity anomaly at the top of the asthenosphere},
  author={Takashi Yoshino and Takuya Matsuzaki and Shigeru Yamashita and Tomoo Katsura},
The oceanic asthenosphere is observed to have high electrical conductivity, which is highly anisotropic in some locations. In the directions parallel and normal to the plate motion, the conductivity is of the order of 10-1 and 10-2 S m-1, respectively, which cannot be explained by the conductivity of anhydrous olivine. But because hydrogen can be incorporated in olivine at mantle pressures, this observation has been attributed to olivine hydration, which might cause anisotropically high… CONTINUE READING
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