SHRIMP ZIRCON U-Pb AGES OF RHYOLITE FROM THE NAIJ TAL GROUP IN THE EAST KULUN OROGENIC BELT

ZHANG Yao-ling; ZHANG Xu-jiao; HU Dao-gong; SHI Yu-ruo; LU Lu

2010 Vol. 16, No. 1

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ZHANG Yao-ling, ZHANG Xu-jiao, HU Dao-gong, SHI Yu-ruo, LU Lu. SHRIMP ZIRCON U-Pb AGES OF RHYOLITE FROM THE NAIJ TAL GROUP IN THE EAST KULUN OROGENIC BELT[J]. Journal of Geomechanics, 2010, 16(1): 21-27, 50.

Citation:

ZHANG Yao-ling, ZHANG Xu-jiao, HU Dao-gong, SHI Yu-ruo, LU Lu. SHRIMP ZIRCON U-Pb AGES OF RHYOLITE FROM THE NAIJ TAL GROUP IN THE EAST KULUN OROGENIC BELT[J]. Journal of Geomechanics, 2010, 16(1): 21-27, 50.

SHRIMP ZIRCON U-Pb AGES OF RHYOLITE FROM THE NAIJ TAL GROUP IN THE EAST KULUN OROGENIC BELT

1.
China University of Geosciences, Beijing 100083, China
2.
Institute of Geomechanics, Chinese Academy of Geological Science, Beijing 100081, China
3.
Beijing Center of Ion Microprobe, Beijing 100037, China

Received Date: 04 December 2009

Publish Date: 25 March 2010

Abstract

Abstract

The Naij Tal Group is a major lithostratigraphic unit with a complex composition in the East Kunlu Paleozoic orogenic belt, and there has long been debate on its formation time. The An average SHRIMP zircon ²⁰⁶Pb/²³⁸U age of 450.4 ± 4.3 Ma has been obtained for 15 rhyolite samples collected from the Shihuichang Formation of the Naij Tal Group south of Gelmud. It was interpreted as the age of a volcanic activity, so the Shihuichang Formation of the Naij Tal Group can be considered to form in the Late Ordovician.
- Naij Tal Group /
- zircon U-Pb age /
- Late Ordovician /
- eastern Kunlun orogenic belt

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References

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