Petrogenesis of ultramafics in the Neoarchean Veligallu greenstone terrane, eastern Dharwar craton, India: Constraints from bulk-rock geochemistry and Lu-Hf isotopes
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- 作者：Tarun C. Khannaa ; khannangri@gmail.com" class="auth_mail" title="E-mail the corresponding author ; khannangri@ngri.res.in" class="auth_mail" title="E-mail the corresponding author ; V.V. Sesha Saib ; Michael Bizimisc ; A. Keshav Krishnaa
- 关键词：Ultramafic rocks ; Arc cumulates ; Lutetium-Hafnium ; Neoarchean ; Veligallu greenstone terrane ; Dharwar craton
- 刊名：Precambrian Research
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：285
- 期：Complete
- 页码：186-201
- 全文大小：4009 K
文摘
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We report Lu-Hf isotope systematics and infer the petrogenesis of ultramafic rocks.
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The ultramafics are genetically related to the arc basalts.
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Geochemical attributes indicate boninite-like affinity.
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The basalt-ultramafic suite represents corresponding melt and derivative cumulate.