Stability of carbonated magmas at the base of the Earth's upper mantle
We measured the density of carbonated basaltic melt containing 5.0 wt.% CO2 at 2573 K and in the pressure range from 16.0 to 20.0 GPa by using the sink/float method with single crystal diamond as a density marker. We observed sinking of diamond at 19.0 GPa and flotation of diamond at 20.0 GPa and 25...
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| Veröffentlicht in: | Geophysical research letters 2007-11, Vol.34 (22), p.n/a |
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| container_title | Geophysical research letters |
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| creator | Ghosh, Sujoy Ohtani, Eiji Litasov, Konstantin Suzuki, Akio Sakamaki, Tatsuya |
| description | We measured the density of carbonated basaltic melt containing 5.0 wt.% CO2 at 2573 K and in the pressure range from 16.0 to 20.0 GPa by using the sink/float method with single crystal diamond as a density marker. We observed sinking of diamond at 19.0 GPa and flotation of diamond at 20.0 GPa and 2573 K. Using the third order Birch‐Murnaghan equation of state, the calculated isothermal bulk modulus (KT) of the carbonated basaltic melt (5.0 wt.% CO2) and its pressure derivative (K′) are 16.0 ± 1.0 GPa and 5.2 ± 0.2, respectively. Our result implies that magmas can contain up to 3.0–4.0 wt.% CO2 to be denser than the surrounding mantle at the top of the 410 km discontinuity. |
| doi_str_mv | 10.1029/2007GL031349 |
| format | Article |
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We observed sinking of diamond at 19.0 GPa and flotation of diamond at 20.0 GPa and 2573 K. Using the third order Birch‐Murnaghan equation of state, the calculated isothermal bulk modulus (KT) of the carbonated basaltic melt (5.0 wt.% CO2) and its pressure derivative (K′) are 16.0 ± 1.0 GPa and 5.2 ± 0.2, respectively. Our result implies that magmas can contain up to 3.0–4.0 wt.% CO2 to be denser than the surrounding mantle at the top of the 410 km discontinuity.</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/2007GL031349</identifier><identifier>CODEN: GPRLAJ</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>410 km discontinuity ; density ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; magma</subject><ispartof>Geophysical research letters, 2007-11, Vol.34 (22), p.n/a</ispartof><rights>Copyright 2007 by the American Geophysical Union.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a4736-b27d5f276efe15eab34c95477bd3b8748dd6f289b6959acb5daa79bb41b678113</citedby><cites>FETCH-LOGICAL-a4736-b27d5f276efe15eab34c95477bd3b8748dd6f289b6959acb5daa79bb41b678113</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2007GL031349$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2007GL031349$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>315,781,785,1418,1434,11516,27926,27927,45576,45577,46411,46470,46835,46894</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=19954709$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Ghosh, Sujoy</creatorcontrib><creatorcontrib>Ohtani, Eiji</creatorcontrib><creatorcontrib>Litasov, Konstantin</creatorcontrib><creatorcontrib>Suzuki, Akio</creatorcontrib><creatorcontrib>Sakamaki, Tatsuya</creatorcontrib><title>Stability of carbonated magmas at the base of the Earth's upper mantle</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>We measured the density of carbonated basaltic melt containing 5.0 wt.% CO2 at 2573 K and in the pressure range from 16.0 to 20.0 GPa by using the sink/float method with single crystal diamond as a density marker. We observed sinking of diamond at 19.0 GPa and flotation of diamond at 20.0 GPa and 2573 K. Using the third order Birch‐Murnaghan equation of state, the calculated isothermal bulk modulus (KT) of the carbonated basaltic melt (5.0 wt.% CO2) and its pressure derivative (K′) are 16.0 ± 1.0 GPa and 5.2 ± 0.2, respectively. Our result implies that magmas can contain up to 3.0–4.0 wt.% CO2 to be denser than the surrounding mantle at the top of the 410 km discontinuity.</description><subject>410 km discontinuity</subject><subject>density</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>magma</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNp9kEtPwzAQhC0EEqVw4wfkgrgQ8Ct2fISqTVEjkHgIbtY6cWggbSPbCPrvSRQEnDjtaPXN7GoQOib4nGCqLijGMssxI4yrHTQiivM47Xa7aISx6jSVYh8deP-KMWYdN0Kz-wCmbuqwjTZVVIAzmzUEW0YreFmBjyBEYWkjA972QK-n4MLy1EfvbWtdx61DYw_RXgWNt0ffc4weZ9OHyTzOb7PryWUeA5dMxIbKMqm6L2xlSWLBMF6ohEtpSmZSydOyFBVNlREqUVCYpASQyhhOjJApIWyMzobcwm28d7bSratX4LaaYN13oP920OEnA96CL6CpHKyL2v96VH8c9xwduI-6sdt_M3V2l1MmiehM8WCqfbCfPyZwb1pIJhP9dJPphXiei8XVjWbsCz2MeHQ</recordid><startdate>200711</startdate><enddate>200711</enddate><creator>Ghosh, Sujoy</creator><creator>Ohtani, Eiji</creator><creator>Litasov, Konstantin</creator><creator>Suzuki, Akio</creator><creator>Sakamaki, Tatsuya</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>200711</creationdate><title>Stability of carbonated magmas at the base of the Earth's upper mantle</title><author>Ghosh, Sujoy ; Ohtani, Eiji ; Litasov, Konstantin ; Suzuki, Akio ; Sakamaki, Tatsuya</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a4736-b27d5f276efe15eab34c95477bd3b8748dd6f289b6959acb5daa79bb41b678113</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>410 km discontinuity</topic><topic>density</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>magma</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ghosh, Sujoy</creatorcontrib><creatorcontrib>Ohtani, Eiji</creatorcontrib><creatorcontrib>Litasov, Konstantin</creatorcontrib><creatorcontrib>Suzuki, Akio</creatorcontrib><creatorcontrib>Sakamaki, Tatsuya</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ghosh, Sujoy</au><au>Ohtani, Eiji</au><au>Litasov, Konstantin</au><au>Suzuki, Akio</au><au>Sakamaki, Tatsuya</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Stability of carbonated magmas at the base of the Earth's upper mantle</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2007-11</date><risdate>2007</risdate><volume>34</volume><issue>22</issue><epage>n/a</epage><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>We measured the density of carbonated basaltic melt containing 5.0 wt.% CO2 at 2573 K and in the pressure range from 16.0 to 20.0 GPa by using the sink/float method with single crystal diamond as a density marker. We observed sinking of diamond at 19.0 GPa and flotation of diamond at 20.0 GPa and 2573 K. Using the third order Birch‐Murnaghan equation of state, the calculated isothermal bulk modulus (KT) of the carbonated basaltic melt (5.0 wt.% CO2) and its pressure derivative (K′) are 16.0 ± 1.0 GPa and 5.2 ± 0.2, respectively. Our result implies that magmas can contain up to 3.0–4.0 wt.% CO2 to be denser than the surrounding mantle at the top of the 410 km discontinuity.</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2007GL031349</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | 410 km discontinuity density Earth sciences Earth, ocean, space Exact sciences and technology magma |
| title | Stability of carbonated magmas at the base of the Earth's upper mantle |
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