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

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Date
1988-12-01
Authors
Klein, EM
Langmuir, CH
Zindler, A
Staudigel, H
Hamelin, B
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Abstract
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.
Type
Journal article
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https://hdl.handle.net/10161/8306
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Scholars@Duke

Klein

Emily M. Klein

Professor
Dr. Klein's research focuses on the geochemistry of oceanic basalts, using diverse tools of major, trace and isotopic analyses. Her research involves sea-going expeditions to sample and map the ocean floor.
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