- 作者：Andrey A. Gurenkoa ; agurenko@crpg.cnrs-nancy.fr" class="auth_mail" title="E-mail the corresponding author ; Vadim S. Kamenetskyb ; Andrew C. Kerrc
- 关键词：Gorgona Island ; komatiites ; olivine ; oxygen isotopes ; volatile components ; ion microprobe
- 刊名：Earth and Planetary Science Letters
- 出版年：2016
- 出版时间：15 November 2016
- 年：2016
- 卷：454
- 期：Complete
- 页码：154-165
- 全文大小：1058 K
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66% studied olivines reveal mantle class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0012821X16304642&_mathId=si5.gif&_user=111111111&_pii=S0012821X16304642&_rdoc=1&_issn=0012821X&md5=74a2b0fd2d3b4885c42b3a97dc121b9a" title="Click to view the MathML source">δ18Oclass="mathContainer hidden">class="mathCode">, with the rest affected by serpentinisation.
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H2O–CO2 melt inclusion data imply ∼2.5-km crustal depth of magma fractionation.
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Relationships between volatile and trace elements preclude crustal contamination.
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class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0012821X16304642&_mathId=si5.gif&_user=111111111&_pii=S0012821X16304642&_rdoc=1&_issn=0012821X&md5=74a2b0fd2d3b4885c42b3a97dc121b9a" title="Click to view the MathML source">δ18Oclass="mathContainer hidden">class="mathCode">–class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0012821X16304642&_mathId=si1.gif&_user=111111111&_pii=S0012821X16304642&_rdoc=1&_issn=0012821X&md5=ebef41d11712515dc6217b76ba57cfb1" title="Click to view the MathML source">δ11Bclass="mathContainer hidden">class="mathCode"> data do not support magma contamination by crustal rocks as well.
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Deep mantle origin of H2O and other volatiles in the Gorgona magmas is confirmed.