Isotope evidence of a mantle convection boundary at the Australian-Antarctic Discordance


Journal Article

Basalts from the Southeast Indian Ridge south of Australia form two geographically and isotopically distinct groups that show affinities with either Indian Ocean or Pacific/Atlantic Ocean isotope compositions. The data raise the possibility that there is a sharp boundary between the Indian and Pacific Ocean isotope provinces. The isotope boundary occurs over less than 200km within the Australian-Antarctic Discordance, a technically complex region believed to overlie a zone of downwelling mantle flow. © 1988 Nature Publishing Group.

Full Text

Duke Authors

Cited Authors

  • Klein, EM; Langmuir, CH; Zindler, A; Staudigel, H; Hamelin, B

Published Date

  • January 1, 1988

Published In

Volume / Issue

  • 333 / 6174

Start / End Page

  • 623 - 629

International Standard Serial Number (ISSN)

  • 0028-0836

Digital Object Identifier (DOI)

  • 10.1038/333623a0

Citation Source

  • Scopus