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Article Navigation >  Acta Sedimentologica Sinica  > 2006  >  24(3): 321-332

LAN Zhongwu. The Origin of Sandstones from the SongpanGanze Basin, Sichuan, China: evidence from SHRIMP UPb dating of clastic zircons[J]. Acta Sedimentologica Sinica, 2006, 24(3): 321-332.
Citation: LAN Zhongwu. The Origin of Sandstones from the SongpanGanze Basin, Sichuan, China: evidence from SHRIMP UPb dating of clastic zircons[J]. Acta Sedimentologica Sinica, 2006, 24(3): 321-332.
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The Origin of Sandstones from the SongpanGanze Basin, Sichuan, China: evidence from SHRIMP UPb dating of clastic zircons

  • College of Earth Sciences and Resources,Chinese University of Geosciences,Beijing 100083

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  • Corresponding author: LAN Zhongwu
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2006-06-10
  • The SongpanGanze basin (Central China) covers a huge triangular area of more than 200,000km2and is bounded by the continental blocks of South China, North China and the Tibetan plateau. The six sandstone samples collected from this belt were analyzed grainbygrain〖KG*2〗using SHRIMP UPb method. The detrital zircons yield a wide range of ages, which〖KG*2〗are focused on Proterozoic with minor contribution from late Archean material. The discordance and Pb loss patterns from low U zircons indicate that they might be resulted from the subsequent magmatism events, including the Sibao to the Indosinian periods.The Caledonian appearance of zircons indicates that the origin of these clastic sediments might originate from the Northern Qinling belt, other zircons originated mainly from the north margin of the Yangtze craton and the south Qinling belt.
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  • Received:  1900-01-01
  • Revised:  1900-01-01
  • Published:  2006-06-10

The Origin of Sandstones from the SongpanGanze Basin, Sichuan, China: evidence from SHRIMP UPb dating of clastic zircons

  • College of Earth Sciences and Resources,Chinese University of Geosciences,Beijing 100083
    Corresponding author: LAN Zhongwu
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2006-06-10

Abstract: The SongpanGanze basin (Central China) covers a huge triangular area of more than 200,000km2and is bounded by the continental blocks of South China, North China and the Tibetan plateau. The six sandstone samples collected from this belt were analyzed grainbygrain〖KG*2〗using SHRIMP UPb method. The detrital zircons yield a wide range of ages, which〖KG*2〗are focused on Proterozoic with minor contribution from late Archean material. The discordance and Pb loss patterns from low U zircons indicate that they might be resulted from the subsequent magmatism events, including the Sibao to the Indosinian periods.The Caledonian appearance of zircons indicates that the origin of these clastic sediments might originate from the Northern Qinling belt, other zircons originated mainly from the north margin of the Yangtze craton and the south Qinling belt.

LAN Zhongwu. The Origin of Sandstones from the SongpanGanze Basin, Sichuan, China: evidence from SHRIMP UPb dating of clastic zircons[J]. Acta Sedimentologica Sinica, 2006, 24(3): 321-332.
Citation: LAN Zhongwu. The Origin of Sandstones from the SongpanGanze Basin, Sichuan, China: evidence from SHRIMP UPb dating of clastic zircons[J]. Acta Sedimentologica Sinica, 2006, 24(3): 321-332.
shu

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