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Article Navigation >  Acta Sedimentologica Sinica  > 2010  >  28(4): 676-681

GUO Junfeng. Characteristics and Formation Process of Nodules from Yanjiahe Formation, Terreneuvian of the Three Gorge Area, South China[J]. Acta Sedimentologica Sinica, 2010, 28(4): 676-681.
Citation: GUO Junfeng. Characteristics and Formation Process of Nodules from Yanjiahe Formation, Terreneuvian of the Three Gorge Area, South China[J]. Acta Sedimentologica Sinica, 2010, 28(4): 676-681.
shu

Characteristics and Formation Process of Nodules from Yanjiahe Formation, Terreneuvian of the Three Gorge Area, South China

  • School of Earth Sciences and Resources and Educational Ministry Key Laboratory of Mineral Resources and Geological Engineering of Western China, Chang'an University, Xi'an 710054

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  • Corresponding author: GUO Junfeng
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2010-08-10
  • This paper reports siliceousphosphatic nodules from the Yanjiahe Formation, Terreneuvian in Three Gores area, Hubei province, South China. The results of XRD show phosphatic contents are higher in interior and siliceous contents are higher in exterior of the nodules. The nodules' interior shows loose texture, and abundant Cyanobacteria and diverse Small Shelly Fossils are found in siliceousphosphatic nodules. It indicates Cyanobacteria and SSFs play an important part in formation process of nodules. Under the regulating action of microorganisms, siliceousphosphatic nodules were formed gradually along with the mediums' change of physicchemical condition.
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Publishing history
  • Received:  1900-01-01
  • Revised:  1900-01-01
  • Published:  2010-08-10

Characteristics and Formation Process of Nodules from Yanjiahe Formation, Terreneuvian of the Three Gorge Area, South China

  • School of Earth Sciences and Resources and Educational Ministry Key Laboratory of Mineral Resources and Geological Engineering of Western China, Chang'an University, Xi'an 710054
    Corresponding author: GUO Junfeng
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2010-08-10

Abstract: This paper reports siliceousphosphatic nodules from the Yanjiahe Formation, Terreneuvian in Three Gores area, Hubei province, South China. The results of XRD show phosphatic contents are higher in interior and siliceous contents are higher in exterior of the nodules. The nodules' interior shows loose texture, and abundant Cyanobacteria and diverse Small Shelly Fossils are found in siliceousphosphatic nodules. It indicates Cyanobacteria and SSFs play an important part in formation process of nodules. Under the regulating action of microorganisms, siliceousphosphatic nodules were formed gradually along with the mediums' change of physicchemical condition.

GUO Junfeng. Characteristics and Formation Process of Nodules from Yanjiahe Formation, Terreneuvian of the Three Gorge Area, South China[J]. Acta Sedimentologica Sinica, 2010, 28(4): 676-681.
Citation: GUO Junfeng. Characteristics and Formation Process of Nodules from Yanjiahe Formation, Terreneuvian of the Three Gorge Area, South China[J]. Acta Sedimentologica Sinica, 2010, 28(4): 676-681.
shu

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