Petrological constraints on evolution of continental lithospheric mantle beneath the northwestern Ethiopian plateau: Insight from mantle xenoliths from the Gundeweyn area, East Gojam, Ethiopia
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- 作者：Melesse Alemayehua ; c ; melesse555@yahoo.com" class="auth_mail" title="E-mail the corresponding author ; Hong-Fu Zhanga ; b ; hfzhang@mail.igcas.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Bin Zhua ; Birhanu Fentiec ; Samuel Abrahamd ; Muhammed Hajid
- 关键词：Petrography ; Major-trace element ; Depleted ; Enriched ; Peridotite xenolith ; EARS
- 刊名：Lithos
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：240-243
- 期：Complete
- 页码：295-308
- 全文大小：2024 K
文摘
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Partial melting and metasomatism are the major processes affecting CLM of Ethiopian plateau.
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Gundeweyn mantle xenoliths record high mantle heat flow between 60 and 150 mW/m2.
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A high geotherm shows presence of active mantle upwelling under Ethiopia plateau.
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Plateau lithosphere is product of interaction between melt with depleted lithosphere.
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The interaction is probably related to mantle upwelling focused beneath EARS.