ZIRCON U-Pb AGE FROM SYNTECTONIC GRANITIC PORPHYRY IN THE MIDDLE KUNLUN FAULT BELT AND ITS TECTONIC SIGNIFICANCE

LU Lu; HU Dao-gong; ZHANG Yong-qing; WU Zhen-han

Volume 16 Issue 1

Mar. 2010

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Article Navigation > Journal of Geomechanics > 2010 > 16(1): 36-43

LU Lu, HU Dao-gong, ZHANG Yong-qing, et al., 2010. ZIRCON U-Pb AGE FROM SYNTECTONIC GRANITIC PORPHYRY IN THE MIDDLE KUNLUN FAULT BELT AND ITS TECTONIC SIGNIFICANCE. Journal of Geomechanics, 16 (1): 36-43.

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ZIRCON U-Pb AGE FROM SYNTECTONIC GRANITIC PORPHYRY IN THE MIDDLE KUNLUN FAULT BELT AND ITS TECTONIC SIGNIFICANCE

1.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
2.
Tianjing Institute of Geology and Mineral Resources, China Geological Survey, Tianjin 300170, China
3.
Chinese Academy of Geological Sciences, Beijing 100081, China

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Abstract

Abstract

A measurement by LA-MC-ICP MS for two samples of zircon from granitic porphyry collected at Golmud, in south part of the middle Kunlun fault belt has yielded two U-Pb ages of 408.5 ± 2.3Ma and 391.2 ± 3.4Ma, respectively. The results show that the middle Kunlun fault belt should be a newly generated fault belt superposed on the middle Kunlun suture zone, and formed during the tectonic deformation of continental interior in late Caledonian orogeny of the east Kunlun Mountains.
- middle Kunlun fault,
- granitic porphyry,
- zircon U-Pb age,
- fault activities,
- eastern Kunlun orogenic zone

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