Constraints of volcanic rocks of the Wutai Complex (Shanxi Province, Northern China) on a giant late Neoarchean intra-oceanic arc system in the Trans-North China Orogen
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- 作者：Chaohui Liua ; denverliu82@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Guochun Zhaob ; Fulai Liua ; Jianrong Shic
- 关键词：Trans-North China Orogen ; Wutai Complex ; An intra-oceanic arc ; Meta-volcanic rocks ; Geochemistry ; Geochronology
- 刊名：Journal of Asian Earth Sciences
- 出版年：2016
- 出版时间：1 June 2016
- 年：2016
- 卷：123
- 期：Complete
- 页码：178-212
- 全文大小：7725 K
文摘
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Wutai meta-volcanics erupted from 2548 Ma to 2538 Ma.
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Xenocrystic zircons at 3.61 Ga, 2.97–2.83 Ga and 2.7 Ga were found.
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Group 1 derived from partial melting of depleted mantle in a fore-arc tectonic setting.
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Group 2 and 3 derived from a metasomatized mantle wedge.
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An intra-oceanic arc underlain in part by a ∼2.7 Ga micro-continent at 2.55–2.52 Ga.