A 2.5 Ga fore-arc subduction-accretion complex in the Dengfeng Granite-Greenstone Belt, Southern North China Craton
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- 作者：Hao Denga ; b ; c ; Timothy Kuskya ; b ; tkusky@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Ali Polata ; c ; Chen Wangb ; Lu Wanga ; b ; Yunxiu Lib ; Junpeng Wangb
- 关键词：North China Craton ; Central Orogenic Belt ; Dengfeng Greenstone Belt ; Arc-continent collision ; Archean tectonics
- 刊名：Precambrian Research
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：275
- 期：Complete
- 页码：241-264
- 全文大小：10842 K
文摘
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The DGGB consists of a volcano-sedimentary assemblage intruded by TTGs and diorites.
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A volcano-sedimentary assemblage represents a fore-arc subduction-accretion complex.
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Amphibolites formed in a fore-arc setting and yield a 2.5 Ga metamorphism age.
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TTGs and diorites formed in an arc-related setting and yield a 2.5 Ga intrusion age.
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A 2.5 Ga subduction-accretion-collision event is proposed in the Southern NCC.