A Neoarchean arc-back-arc system in Eastern Hebei, North China Craton: Constraints from zircon U-Pb-Hf isotopes and geochemistry of dioritic-tonalitic-trondhjemitic-granodioritic (DTTG) gneisses and felsic paragneisses
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- 作者：Xiang Baia ; b ; Shuwen Liub ; swliu@pku.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Rongrong Guob ; c ; Wei Wangd
- 关键词：Dioritic&ndash ; tonalitic&ndash ; trondhjemitic&ndash ; granodioritic gneisses ; Felsic paragneisses ; Geochemistry and zircon U&ndash ; Pb&ndash ; Hf isotopes ; Arc&ndash ; back-arc system ; Eastern Hebei ; North China Craton
- 刊名：Precambrian Research
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：273
- 期：Complete
- 页码：90-111
- 全文大小：8475 K
文摘
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DTTG magmas in Qinglong area emplaced between 2517 and 2505 Ma.
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The dioritic magma originated from partial melting of a modified depleted mantle.
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The TTG magmas from a fractional crystallization of the dioritic magma.
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Ancient zircon grains are discovered in the Zunhua Neoarchean felsic paragneisses.
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The DTTG gneisses were formed in a Neoarchean arc to back-arc setting.