2018 Vol. 45, No. 3
Article Contents

XIE Xie, ZHAO Guobin, YANG Hequn, YANG Shengfei, REN Huaning, JIA Jian, SUN Xinchun, HUANG Zengbao. 2018. LA-ICP-MS zircon U-Pb dating and geological significance of the Sunjialing scandium mineralized intrusion in the Beishan region, Gansu Province[J]. Geology in China, 45(3): 483-492. doi: 10.12029/gc20180305
Citation: XIE Xie, ZHAO Guobin, YANG Hequn, YANG Shengfei, REN Huaning, JIA Jian, SUN Xinchun, HUANG Zengbao. 2018. LA-ICP-MS zircon U-Pb dating and geological significance of the Sunjialing scandium mineralized intrusion in the Beishan region, Gansu Province[J]. Geology in China, 45(3): 483-492. doi: 10.12029/gc20180305

LA-ICP-MS zircon U-Pb dating and geological significance of the Sunjialing scandium mineralized intrusion in the Beishan region, Gansu Province

    Fund Project: Supported by China Geological Survey Program (No. 12120113047300, 12120113046700)
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  • Author Bio: XIE Xie, male, born in 1982, master candidate,engages in the study of geological prospecting and oredeposits; E-mail: 77867876@qq.com
  • Located in the Yamansu-Hongshishan-Heiyingshan Late Paleozoic rift of Xingxingxia-Mingshui-Hanshan microplate in Kazakhstan plate, the Sunjialing scandium mineralized intrusion emplaced in the Early Carboniferous Baishan Formation and consists of plagioclase amphiboles and amphiboles, with scandium mainly occurring in the amphibole. Scandium mineralized intrusion belongs to iron-rich ultrabasic intrusion, whose components are characterized by high alkali and alumina. The content of rare earth is high, and the light rare earth is slightly enriched, with obvious negative δ (Eu) anomaly. LILE elements Rb, Ba, Sr and U are enriched whereas HFSE elements Nb, Zr, Hf, Th, and P, Ti are depleted. LA-MC-ICP-MS zircon U-Pb dating of the hornblende yielded an age of (339.5 ±2.6)Ma, which suggests that both the intrusion of the ore-bearing complex and the mineralization occurred in early Carboniferous in a rift environment.

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