Sedimentary rocks and geochemical characteristics as well as detrital zircon of Abushan Formation in Woruobale and Bailong area, Tibet, and their indicating significance for provenance information

WANG Zhilong; HU Xichong; SHI Xiaolong; HUANG Qiangtai; ZHENG Hao; SHI Shengmei

2017 Vol. 36, No. 7

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WANG Zhilong, HU Xichong, SHI Xiaolong, HUANG Qiangtai, ZHENG Hao, SHI Shengmei. Sedimentary rocks and geochemical characteristics as well as detrital zircon of Abushan Formation in Woruobale and Bailong area, Tibet, and their indicating significance for provenance information[J]. Geological Bulletin of China, 2017, 36(7): 1188-1203.

Citation:

WANG Zhilong, HU Xichong, SHI Xiaolong, HUANG Qiangtai, ZHENG Hao, SHI Shengmei. Sedimentary rocks and geochemical characteristics as well as detrital zircon of Abushan Formation in Woruobale and Bailong area, Tibet, and their indicating significance for provenance information[J]. Geological Bulletin of China, 2017, 36(7): 1188-1203.

Sedimentary rocks and geochemical characteristics as well as detrital zircon of Abushan Formation in Woruobale and Bailong area, Tibet, and their indicating significance for provenance information

1.
Qingyuan Construction Quality Inspection Station, Qingyuan 511515, Guangdong, China
2.
Island Protection and Utilization Research Center, National Marine Environmental Monitoring Center, Dalian 116023, Liaoning, China
3.
Guangzhou Institute of Geology Survey, Guangzhou 510440, Guangdong, China
4.
Guangdong University Key Laboratory of Offshore Oil Exploration and Development, Guangzhou 510006, Guangdong, China
5.
940 Nonferrous Geological Team, Qingyuan 511520, Guangdong, China

More Information

Corresponding author: HU Xichong, xchu@nmemc.org.cn

Received Date: 07 December 2016

Revised Date: 05 June 2017

Publish Date: 25 July 2017

Abstract

Abstract

From the 1:50000 regional geological and mineral survey of Bailong and Woruobale area, and on the basis of the field rock and sendimentary characteristics, the authors divided the Abushan Formation into two sections, i.e., piedmont alluvial and lacustrine facies clastic sediments. Geochemical characteristics of the sandstone samples from the upper Abushan Formation show that the provenance was mainly from the upper crust, and was mainly felsic rocks. The authors obtained for the first time two detrital zircon samples from Upper Abushan Formation, and the analytical results show that the youngest detrital zircon ages are 85.9Ma and 100.39Ma. The results provide a basis for determining the ages of Abushan Formation. In addition, there exist four peak ages for the two samples, i.e., 10Ma, 440Ma, 820Ma and 1280Ma. Combined with the geochemical characteristics and provenance information of this group, the authors made a discussion on the tectonic evolution of Qiangtang terrane.
- Abushan Formation /
- Qiangtang terrane /
- geochemical characteristics /
- provenanace information /
- detrital zircon

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References

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