Single-Zircon U-Pb and Geological Significance of Metamorphic and Intrusive System of NALINGELE Region in East Kunlun Neo-proterozoic

YAN Yufeng; YANG Bo; LI Huanxue; CAI Hangjia; XU Haiquan; XU Yuhao

Northwestern Geology > 2017 > 50(4): 33-40.

YAN Yufeng, YANG Bo, LI Huanxue, et al. Single-Zircon U-Pb and Geological Significance of Metamorphic and Intrusive System of NALINGELE Region in East Kunlun Neo-proterozoic[J]. Northwestern Geology, 2017, 50(4): 33-40.

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Single-Zircon U-Pb and Geological Significance of Metamorphic and Intrusive System of NALINGELE Region in East Kunlun Neo-proterozoic

YAN Yufeng^1,2,
YANG Bo^1,2,
LI Huanxue^1,2,
CAI Hangjia^1,2,
XU Haiquan^1,2,
XU Yuhao^1,2

1. Qinghai Geological SurveyInstitute, Xining 810012, Qinghai, China;
2. Key Laboratory of Nothern Tibetan Plateau Geological Processes and Mineral Resources, Xining 810012, Qinghai, China

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Received Date: January 04, 2017
Revised Date: September 05, 2017
Available Online: July 28, 2022
Published Date: December 04, 2017

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Abstract

Abstract

Neo-proterozoic metamorphic and intrusive rocks(bodies)are discovered in Nalinggelehe area in East Kunlun, which were intruded into Jinshuikou Paleo-proterozic rock group and Wanbaogou Mesoproterozoic-Neoproterozoic rock group, with the lithology of granodioritic gneiss and monzonitic granitic gneiss. The LA-ICP-MS zircon dating of granodioritic gneiss has yielded an age of (840±2)Ma, which belongs to the Neo-proterozoic era.Rock geochemistry shows the characteristics of strong peraluminous, high potassium calc-alkaline series rock, with the features of S type granite, which was formedin continental collision orogenic environment and served as a product of the collision environment.This age and the available dating data suggest that a Meso-to Neo-Proterozoic granitic intrusive belt exists in the eastern margin of the Kunlun block, and that the whole Kunlun block might be a response to the amalgamation event of global Rodinia supercontinent.
- Neo-proterozoic,
- intrusive rock,
- granodioritic gneiss,
- continental collision orogeny

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Single-Zircon U-Pb and Geological Significance of Metamorphic and Intrusive System of NALINGELE Region in East Kunlun Neo-proterozoic

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