Geochemistry and zircon geochronology of the Neoarchean volcano-sedimentary sequence along the northern margin of the Nilgiri Block, southern India
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- 作者：Vinod O. Samuela ; M. Santoshb ; c ; d ; Qiong-Yan Yangc ; d ; K. Sajeeva ; sajeev@ceas.iisc.ernet.in" class="auth_mail" title="E-mail the corresponding author
- 关键词：Volcano-sedimentary sequences ; U&ndash ; Pb geochronology and Lu&ndash ; Hf isotopes ; Convergent margin tectonics ; Nilgiri Block southern India
- 刊名：Lithos
- 出版年：2016
- 出版时间：15 October 2016
- 年：2016
- 卷：263
- 期：Complete
- 页码：257-273
- 全文大小：6176 K
文摘
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Volcano-sedimentary sequences from the north-eastern periphery of the Nilgiri Block.
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Zircon 207Pb/206Pb ages indicate prominent Neoarchean arc magmatism.
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The dominantly positive εHf (t) values suggest depleted mantle source.
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Evidence of Early Paleoproterozoic suturing of southern granulite terrane to the Dharwar Craton.