Carbonatite melt-peridotite interaction at 5.5-7.0 GPa: Implications for metasomatism in lithospheric mantle
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- 作者：Alexander G. Sokola ; b ; sokola@igm.nsc.ru" class="auth_mail" title="E-mail the corresponding author ; Alexey N. Kruka ; b ; Dimity A. Chebotareva ; b ; Yury N. Palyanova ; b
- 关键词：Experiment ; Mantle ; Metasomatism ; Kimberlite ; Magma ; Diamond formation
- 刊名：Lithos
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：248-251
- 期：Complete
- 页码：66-79
- 全文大小：3123 K
文摘
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Carbonatite melt–peridotite interaction studied at 1200–1350 °C and 5.5–7.0 GPa
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The interaction is produced rich in alkali carbonatitic melts with SiO2 ≤ 7 wt.%.
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At 1200 °C in peridotite increased Cpx/Opx ratio and crystallized Mgs
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At 1350 °C hybridization of the carbonatite and carbonated peridotite melts occurred.
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At 1350 °C in peridotite consumed Mgs, at MgO/CaO ≥ 4.3 crystallized Opx