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Indosinian magmatism and mineralization in the Banjiaoyuan tin deposit, middle Nanling Range, South China: Constraints from zircon and cassiterite U-Pb ages, geochemistry and Sr-Nd-Hf isotopic compositions by Yun Du; Youyue Lu; Zunzun Zhang; Jianming Fu; Xiaoyong Yang; Zhuang Zhao; Zhengwei Qin; Jianfeng Chen; Rong Xiao; Jianfeng Li; Xiqing Chen; Zhengfu Zheng; Zhifang Zeng; Donggui Xiao; Pingyun Dai; Liyan Ma is a Earth and Planetary Sciences article available to read on EtoBox.

What is Indosinian magmatism and mineralization in the Banjiaoyuan tin deposit, middle Nanling Range, South China: Constraints from zircon and cassiterite U-Pb ages, geochemistry and Sr-Nd-Hf isotopic compositions about?

Indosinian W-Sn metallogeny associated with granites in South China has been reported in recent years by many researchers. However, the refined genetic relations between these deposits and the related granites remain unclear in most areas, and the tectonic setting of Indosinian magmatism and W-Sn mineralization are still widely controversial. The Banjiaoyuan tin deposit is located in the east vicinity of Yangmingshan pluton in the middle Nanling Range, South China. The granitic stocks in this deposit comprise two intrusive episodes, i.e., the first episode of medium-coarse-grained porphyritic tourmaline-biotite monzogranite (G1), and the second episode of micron-fine-grained tourmaline-muscovite monzogranite (G2). LA-ICP-MS zircon U-Pb dating gives weighted ages of 226.9 ± 1.6 Ma to 223.8 ± 1.9 Ma for G1, and 224.3 ± 2.0 Ma for G2, respectively. LA-MC-ICP-MS cassiterite U-Pb dating yields Tera-Wasserburg concordia age of 216.7 ± 2.4 Ma for tin mineralization. These ages indicate that both the granitic magmatism and related mineralization were initiated in the late Indosinian period. All the granites have high SiO2, Al2O3, P2O5 contents, and low TFeO, CaO, MgO, TiO2 contents, indica

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Author

Yun Du; Youyue Lu; Zunzun Zhang; Jianming Fu; Xiaoyong Yang; Zhuang Zhao; Zhengwei Qin; Jianfeng Chen; Rong Xiao; Jianfeng Li; Xiqing Chen; Zhengfu Zheng; Zhifang Zeng; Donggui Xiao; Pingyun Dai; Liyan Ma

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)