Rapid Kimberlite Ascent and the Significance of Ar-Ar Ages in Xenolith Phlogopites
Kimberlite eruptions bring exotic rock fragments and minerals, including diamonds, from deep within the mantle up to the surface. Such fragments are rapidly absorbed into the kimberlite magma so their appearance at the surface implies rapid transport from depth. High spatial resolution Ar-Ar age dat...
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American Association for the Advancement of Science (AAAS)
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Online Access: | http://dx.doi.org/10.1126/science.289.5479.609 https://www.science.org/doi/pdf/10.1126/science.289.5479.609 |
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craaas:10.1126/science.289.5479.609 2024-09-15T18:16:58+00:00 Rapid Kimberlite Ascent and the Significance of Ar-Ar Ages in Xenolith Phlogopites Kelley, S. P. Wartho, J-A. 2000 http://dx.doi.org/10.1126/science.289.5479.609 https://www.science.org/doi/pdf/10.1126/science.289.5479.609 en eng American Association for the Advancement of Science (AAAS) Science volume 289, issue 5479, page 609-611 ISSN 0036-8075 1095-9203 journal-article 2000 craaas https://doi.org/10.1126/science.289.5479.609 2024-09-05T04:01:17Z Kimberlite eruptions bring exotic rock fragments and minerals, including diamonds, from deep within the mantle up to the surface. Such fragments are rapidly absorbed into the kimberlite magma so their appearance at the surface implies rapid transport from depth. High spatial resolution Ar-Ar age data on phlogopite grains in xenoliths from Malaita in the Solomon Islands, southwest Pacific, and Elovy Island in the Kola Peninsula, Russia, indicate transport times of hours to days depending upon the magma temperature. In addition, the data show that the phlogopite grains preserve Ar-Ar ages recorded at high temperature in the mantle, 700°C above the conventional closure temperature. Article in Journal/Newspaper kola peninsula AAAS Resource Center (American Association for the Advancement of Science) Science 289 5479 609 611 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
Kimberlite eruptions bring exotic rock fragments and minerals, including diamonds, from deep within the mantle up to the surface. Such fragments are rapidly absorbed into the kimberlite magma so their appearance at the surface implies rapid transport from depth. High spatial resolution Ar-Ar age data on phlogopite grains in xenoliths from Malaita in the Solomon Islands, southwest Pacific, and Elovy Island in the Kola Peninsula, Russia, indicate transport times of hours to days depending upon the magma temperature. In addition, the data show that the phlogopite grains preserve Ar-Ar ages recorded at high temperature in the mantle, 700°C above the conventional closure temperature. |
format |
Article in Journal/Newspaper |
author |
Kelley, S. P. Wartho, J-A. |
spellingShingle |
Kelley, S. P. Wartho, J-A. Rapid Kimberlite Ascent and the Significance of Ar-Ar Ages in Xenolith Phlogopites |
author_facet |
Kelley, S. P. Wartho, J-A. |
author_sort |
Kelley, S. P. |
title |
Rapid Kimberlite Ascent and the Significance of Ar-Ar Ages in Xenolith Phlogopites |
title_short |
Rapid Kimberlite Ascent and the Significance of Ar-Ar Ages in Xenolith Phlogopites |
title_full |
Rapid Kimberlite Ascent and the Significance of Ar-Ar Ages in Xenolith Phlogopites |
title_fullStr |
Rapid Kimberlite Ascent and the Significance of Ar-Ar Ages in Xenolith Phlogopites |
title_full_unstemmed |
Rapid Kimberlite Ascent and the Significance of Ar-Ar Ages in Xenolith Phlogopites |
title_sort |
rapid kimberlite ascent and the significance of ar-ar ages in xenolith phlogopites |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2000 |
url |
http://dx.doi.org/10.1126/science.289.5479.609 https://www.science.org/doi/pdf/10.1126/science.289.5479.609 |
genre |
kola peninsula |
genre_facet |
kola peninsula |
op_source |
Science volume 289, issue 5479, page 609-611 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.289.5479.609 |
container_title |
Science |
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289 |
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5479 |
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609 |
op_container_end_page |
611 |
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1810454946840051712 |