Geochronology, redox-state and origin of the ore-hosting porphyry in the Tongkuangyu Cu deposit, North China Craton: Implications for metallogenesis and tectonic evolution
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- 作者：Xuan Liu ; Hong-Rui Fan ; fanhr@mail.iggcas.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Kui-Feng Yang ; Zheng-Jie Qiu ; Fang-Fang Hu ; Xi-Yan Zhu
- 关键词：Oxygen fugacity ; Magma source ; Tongkuangyu Cu deposit ; Hf-O isotopes ; Zhongtiao ; North China Craton
- 刊名：Precambrian Research
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：276
- 期：Complete
- 页码：211-232
- 全文大小：6712 K
文摘
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Monzogranitic porphyries at Tongkuangyu Cu deposit were emplaced ca. 2180 Ma.
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They formed by remelting of ∼2.7 Ga diorite with minor juvenile mantle material.
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Low ƒO2s (ΔFMQ −1.5) make them unsuitable for porphyry type mineralization.
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A new geodynamic model (2.7–2.2 Ga) is proposed for the Zhongtiao Mountain.
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