Basalts of a Seamount on the Eastern Flank of the Charlie Gibbs Transform Fracture Zone, North Atlantic: Petrochemical and Isotopic Evidence of a Microplume-Affected Formation in the Axial Zone of the Mid-Atlantic Ridge
The composition of basalts dredged from the slopes of a single seamount (guyot), which is located south of the eastern end of the Charlie Gibbs Fracture Zone in the North Atlantic, is studied. Groups of high- and low-Ti rocks, which belong to oceanic tholeiites of the E-MORB and T-MORB types, respec...
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| Veröffentlicht in: | Doklady earth sciences 2023-12, Vol.513 (2), p.1306-1311 |
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| creator | Skolotnev, S. G. Peyve, A. A. Dokashenko, S. A. Dobrolyubov, V. N. Okina, O. I. Ermolaev, B. V. |
| description | The composition of basalts dredged from the slopes of a single seamount (guyot), which is located south of the eastern end of the Charlie Gibbs Fracture Zone in the North Atlantic, is studied. Groups of high- and low-Ti rocks, which belong to oceanic tholeiites of the E-MORB and T-MORB types, respectively, are recognized. The first group of basalts have higher contents of TiO
2
, Na
2
O, K
2
O, P
2
O
5
, Fe
2
O
3
, and incompatible trace elements. The basalts of both groups are similar in the normalized lithophile element patterns indicating their melting from a similar mantle substrate. The difference in their composition is probably caused by melting of high-Ti volcanic rocks at a deeper intermediate level between spinel and garnet facies. Our studies give grounds to believe that the seamount also formed as a large neovolcanic rise 64–67 Ma ago under the influence of a microplume, which was a branch of the Milne deep mantle plume. |
| doi_str_mv | 10.1134/S1028334X23602195 |
| format | Article |
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2
, Na
2
O, K
2
O, P
2
O
5
, Fe
2
O
3
, and incompatible trace elements. The basalts of both groups are similar in the normalized lithophile element patterns indicating their melting from a similar mantle substrate. The difference in their composition is probably caused by melting of high-Ti volcanic rocks at a deeper intermediate level between spinel and garnet facies. Our studies give grounds to believe that the seamount also formed as a large neovolcanic rise 64–67 Ma ago under the influence of a microplume, which was a branch of the Milne deep mantle plume.</description><identifier>ISSN: 1028-334X</identifier><identifier>EISSN: 1531-8354</identifier><identifier>DOI: 10.1134/S1028334X23602195</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Basalt ; Composition ; Dredging ; Earth ; Earth and Environmental Science ; Earth Sciences ; Ferric oxide ; Fracture zones ; Garnet ; Mantle ; Mantle plumes ; Melting ; Mid-ocean ridges ; Petrochemicals ; Petroleum chemicals ; Petroleum chemicals industry ; Petrology ; Phosphorus pentoxide ; Rocks ; Seamounts ; Spinel group ; Substrates ; Titanium dioxide ; Trace elements ; Volcanic rocks</subject><ispartof>Doklady earth sciences, 2023-12, Vol.513 (2), p.1306-1311</ispartof><rights>The Author(s) 2023. ISSN 1028-334X, Doklady Earth Sciences, 2023, Vol. 513, Part 2, pp. 1306–1311. © The Author(s), 2023. This article is an open access publication, corrected publication 2023. ISSN 1028-334X, Doklady Earth Sciences, 2023. © The Author(s), 2023. This article is an open access publication, corrected publication 2023. Russian Text © The Author(s), 2023, published in Doklady Rossiiskoi Akademii Nauk. Nauki o Zemle, 2023, Vol. 513, No. 2, pp. 189–195.</rights><rights>COPYRIGHT 2023 Springer</rights><rights>The Author(s) 2023. ISSN 1028-334X, Doklady Earth Sciences, 2023, Vol. 513, Part 2, pp. 1306–1311. © The Author(s), 2023. This article is an open access publication, corrected publication 2023. ISSN 1028-334X, Doklady Earth Sciences, 2023. © The Author(s), 2023. This article is an open access publication, corrected publication 2023. Russian Text © The Author(s), 2023, published in Doklady Rossiiskoi Akademii Nauk. Nauki o Zemle, 2023, Vol. 513, No. 2, pp. 189–195. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c350t-2050683c30e871b0d363db58c6a17e33157a49d0e49a71888a38ec5cfe4318703</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S1028334X23602195$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S1028334X23602195$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids></links><search><creatorcontrib>Skolotnev, S. G.</creatorcontrib><creatorcontrib>Peyve, A. A.</creatorcontrib><creatorcontrib>Dokashenko, S. A.</creatorcontrib><creatorcontrib>Dobrolyubov, V. N.</creatorcontrib><creatorcontrib>Okina, O. I.</creatorcontrib><creatorcontrib>Ermolaev, B. V.</creatorcontrib><title>Basalts of a Seamount on the Eastern Flank of the Charlie Gibbs Transform Fracture Zone, North Atlantic: Petrochemical and Isotopic Evidence of a Microplume-Affected Formation in the Axial Zone of the Mid-Atlantic Ridge</title><title>Doklady earth sciences</title><addtitle>Dokl. Earth Sc</addtitle><description>The composition of basalts dredged from the slopes of a single seamount (guyot), which is located south of the eastern end of the Charlie Gibbs Fracture Zone in the North Atlantic, is studied. Groups of high- and low-Ti rocks, which belong to oceanic tholeiites of the E-MORB and T-MORB types, respectively, are recognized. The first group of basalts have higher contents of TiO
2
, Na
2
O, K
2
O, P
2
O
5
, Fe
2
O
3
, and incompatible trace elements. The basalts of both groups are similar in the normalized lithophile element patterns indicating their melting from a similar mantle substrate. The difference in their composition is probably caused by melting of high-Ti volcanic rocks at a deeper intermediate level between spinel and garnet facies. Our studies give grounds to believe that the seamount also formed as a large neovolcanic rise 64–67 Ma ago under the influence of a microplume, which was a branch of the Milne deep mantle plume.</description><subject>Basalt</subject><subject>Composition</subject><subject>Dredging</subject><subject>Earth</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Ferric oxide</subject><subject>Fracture zones</subject><subject>Garnet</subject><subject>Mantle</subject><subject>Mantle plumes</subject><subject>Melting</subject><subject>Mid-ocean ridges</subject><subject>Petrochemicals</subject><subject>Petroleum chemicals</subject><subject>Petroleum chemicals industry</subject><subject>Petrology</subject><subject>Phosphorus pentoxide</subject><subject>Rocks</subject><subject>Seamounts</subject><subject>Spinel group</subject><subject>Substrates</subject><subject>Titanium dioxide</subject><subject>Trace elements</subject><subject>Volcanic rocks</subject><issn>1028-334X</issn><issn>1531-8354</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><recordid>eNp1UU1v1DAQjRBIlJYfwG0krqTYsZ043MJqt1TqB6JFQlwirzPZdUnsxXYQ_Nb-mToKFQdU-WBr5r15z2-y7A0lp5Qy_v6GkkIyxr8VrCQFrcWz7IgKRnPJBH-e3qmdz_2X2asQ7gjhnIv6KLv_qIIaYgDXg4IbVKObbARnIe4R1ipE9BY2g7I_ZshcXO2VHwzCmdluA9x6ZUPv_Agbr3ScPMJ3Z_EdXDkf99DERI1Gf4DPGL3TexyNVgMo28F5cNEdjIb1L9Oh1biYuDTau8MwjZg3fY86YgebJKCiSbbM4qz5bdKUWenR1qXp8kc1-GK6HZ5kL3o1BHz99z7Ovm7Wt6tP-cX12fmqucg1EyTmBRGklEwzgrKiW9KxknVbIXWpaIWMUVEpXncEea0qKqVUTKIWukfOqKwIO87eLnMP3v2cMMT2zk3eJsm2qKkUJalKllCnC2qnBmyN7V1MgaXTzZGkj_Qm1RtJiqqsZckTgS6EFEcIHvv24M2o_J-WknZeevvf0hOnWDghYe0O_T8rT5MeAGpAr1o</recordid><startdate>20231201</startdate><enddate>20231201</enddate><creator>Skolotnev, S. G.</creator><creator>Peyve, A. A.</creator><creator>Dokashenko, S. A.</creator><creator>Dobrolyubov, V. N.</creator><creator>Okina, O. I.</creator><creator>Ermolaev, B. V.</creator><general>Pleiades Publishing</general><general>Springer</general><general>Springer Nature B.V</general><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope></search><sort><creationdate>20231201</creationdate><title>Basalts of a Seamount on the Eastern Flank of the Charlie Gibbs Transform Fracture Zone, North Atlantic: Petrochemical and Isotopic Evidence of a Microplume-Affected Formation in the Axial Zone of the Mid-Atlantic Ridge</title><author>Skolotnev, S. G. ; Peyve, A. A. ; Dokashenko, S. A. ; Dobrolyubov, V. N. ; Okina, O. I. ; Ermolaev, B. 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V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Basalts of a Seamount on the Eastern Flank of the Charlie Gibbs Transform Fracture Zone, North Atlantic: Petrochemical and Isotopic Evidence of a Microplume-Affected Formation in the Axial Zone of the Mid-Atlantic Ridge</atitle><jtitle>Doklady earth sciences</jtitle><stitle>Dokl. Earth Sc</stitle><date>2023-12-01</date><risdate>2023</risdate><volume>513</volume><issue>2</issue><spage>1306</spage><epage>1311</epage><pages>1306-1311</pages><issn>1028-334X</issn><eissn>1531-8354</eissn><abstract>The composition of basalts dredged from the slopes of a single seamount (guyot), which is located south of the eastern end of the Charlie Gibbs Fracture Zone in the North Atlantic, is studied. Groups of high- and low-Ti rocks, which belong to oceanic tholeiites of the E-MORB and T-MORB types, respectively, are recognized. The first group of basalts have higher contents of TiO
2
, Na
2
O, K
2
O, P
2
O
5
, Fe
2
O
3
, and incompatible trace elements. The basalts of both groups are similar in the normalized lithophile element patterns indicating their melting from a similar mantle substrate. The difference in their composition is probably caused by melting of high-Ti volcanic rocks at a deeper intermediate level between spinel and garnet facies. Our studies give grounds to believe that the seamount also formed as a large neovolcanic rise 64–67 Ma ago under the influence of a microplume, which was a branch of the Milne deep mantle plume.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1028334X23602195</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Doklady earth sciences, 2023-12, Vol.513 (2), p.1306-1311 |
| issn | 1028-334X 1531-8354 |
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| subjects | Basalt Composition Dredging Earth Earth and Environmental Science Earth Sciences Ferric oxide Fracture zones Garnet Mantle Mantle plumes Melting Mid-ocean ridges Petrochemicals Petroleum chemicals Petroleum chemicals industry Petrology Phosphorus pentoxide Rocks Seamounts Spinel group Substrates Titanium dioxide Trace elements Volcanic rocks |
| title | Basalts of a Seamount on the Eastern Flank of the Charlie Gibbs Transform Fracture Zone, North Atlantic: Petrochemical and Isotopic Evidence of a Microplume-Affected Formation in the Axial Zone of the Mid-Atlantic Ridge |
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