Osmium Isotopic Evidence for Ancient Subcontinental Lithospheric Mantle Beneath the Kerguelen Islands, Southern Indian Ocean
Upper mantle xenoliths found in ocean island basalts are an important window through which the oceanic mantle lithosphere may be viewed directly. Osmium isotopic data on peridotite xenoliths from the Kerguelen Islands, an archipelago that is located on the northern Kerguelen Plateau in the southern...
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American Association for the Advancement of Science (AAAS)
1998
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craaas:10.1126/science.280.5362.418 2023-10-29T02:37:36+01:00 Osmium Isotopic Evidence for Ancient Subcontinental Lithospheric Mantle Beneath the Kerguelen Islands, Southern Indian Ocean Hassler, Deborah R. Shimizu, Nobumichi 1998 http://dx.doi.org/10.1126/science.280.5362.418 https://syndication.highwire.org/content/doi/10.1126/science.280.5362.418 en eng American Association for the Advancement of Science (AAAS) Science volume 280, issue 5362, page 418-421 ISSN 0036-8075 1095-9203 Multidisciplinary journal-article 1998 craaas https://doi.org/10.1126/science.280.5362.418 2023-09-29T14:39:10Z Upper mantle xenoliths found in ocean island basalts are an important window through which the oceanic mantle lithosphere may be viewed directly. Osmium isotopic data on peridotite xenoliths from the Kerguelen Islands, an archipelago that is located on the northern Kerguelen Plateau in the southern Indian Ocean, demonstrate that pieces of mantle of diverse provenance are present beneath the Islands. In particular, peridotites with unradiogenic osmium and ancient rhenium-depletion ages (to 1.36 × 10 9 years old) may be pieces of the Gondwanaland subcontinental lithosphere that were incorporated into the Indian Ocean lithosphere as a result of the rifting process. Article in Journal/Newspaper Kerguelen Islands Ocean Island AAAS Resource Center (American Association for the Advancement of Science - via Crossref) Science 280 5362 418 421 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science - via Crossref) |
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craaas |
language |
English |
topic |
Multidisciplinary |
spellingShingle |
Multidisciplinary Hassler, Deborah R. Shimizu, Nobumichi Osmium Isotopic Evidence for Ancient Subcontinental Lithospheric Mantle Beneath the Kerguelen Islands, Southern Indian Ocean |
topic_facet |
Multidisciplinary |
description |
Upper mantle xenoliths found in ocean island basalts are an important window through which the oceanic mantle lithosphere may be viewed directly. Osmium isotopic data on peridotite xenoliths from the Kerguelen Islands, an archipelago that is located on the northern Kerguelen Plateau in the southern Indian Ocean, demonstrate that pieces of mantle of diverse provenance are present beneath the Islands. In particular, peridotites with unradiogenic osmium and ancient rhenium-depletion ages (to 1.36 × 10 9 years old) may be pieces of the Gondwanaland subcontinental lithosphere that were incorporated into the Indian Ocean lithosphere as a result of the rifting process. |
format |
Article in Journal/Newspaper |
author |
Hassler, Deborah R. Shimizu, Nobumichi |
author_facet |
Hassler, Deborah R. Shimizu, Nobumichi |
author_sort |
Hassler, Deborah R. |
title |
Osmium Isotopic Evidence for Ancient Subcontinental Lithospheric Mantle Beneath the Kerguelen Islands, Southern Indian Ocean |
title_short |
Osmium Isotopic Evidence for Ancient Subcontinental Lithospheric Mantle Beneath the Kerguelen Islands, Southern Indian Ocean |
title_full |
Osmium Isotopic Evidence for Ancient Subcontinental Lithospheric Mantle Beneath the Kerguelen Islands, Southern Indian Ocean |
title_fullStr |
Osmium Isotopic Evidence for Ancient Subcontinental Lithospheric Mantle Beneath the Kerguelen Islands, Southern Indian Ocean |
title_full_unstemmed |
Osmium Isotopic Evidence for Ancient Subcontinental Lithospheric Mantle Beneath the Kerguelen Islands, Southern Indian Ocean |
title_sort |
osmium isotopic evidence for ancient subcontinental lithospheric mantle beneath the kerguelen islands, southern indian ocean |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
1998 |
url |
http://dx.doi.org/10.1126/science.280.5362.418 https://syndication.highwire.org/content/doi/10.1126/science.280.5362.418 |
genre |
Kerguelen Islands Ocean Island |
genre_facet |
Kerguelen Islands Ocean Island |
op_source |
Science volume 280, issue 5362, page 418-421 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.280.5362.418 |
container_title |
Science |
container_volume |
280 |
container_issue |
5362 |
container_start_page |
418 |
op_container_end_page |
421 |
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1781062547160432640 |