Research Progress on Re-Os Isotopes Application in Dating and Paleoenvironmental Interpretation during the Neoproterozoic to Early Cambrian Periods

Fu-liang WANG; Yong FU; Ran JIANG; Wen-xi ZHOU; Zhi-hua GE; Shuai-chao WEI; Hou-peng LIANG; Peng ZHANG

doi:10.15898/j.cnki.11-2131/td.2016.05.012

2016 Vol. 35, No. 5

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Fu-liang WANG, Yong FU, Ran JIANG, Wen-xi ZHOU, Zhi-hua GE, Shuai-chao WEI, Hou-peng LIANG, Peng ZHANG. Research Progress on Re-Os Isotopes Application in Dating and Paleoenvironmental Interpretation during the Neoproterozoic to Early Cambrian Periods[J]. Rock and Mineral Analysis, 2016, 35(5): 530-541. doi: 10.15898/j.cnki.11-2131/td.2016.05.012

Citation:

Fu-liang WANG, Yong FU, Ran JIANG, Wen-xi ZHOU, Zhi-hua GE, Shuai-chao WEI, Hou-peng LIANG, Peng ZHANG. Research Progress on Re-Os Isotopes Application in Dating and Paleoenvironmental Interpretation during the Neoproterozoic to Early Cambrian Periods[J]. Rock and Mineral Analysis, 2016, 35(5): 530-541. doi: 10.15898/j.cnki.11-2131/td.2016.05.012

Research Progress on Re-Os Isotopes Application in Dating and Paleoenvironmental Interpretation during the Neoproterozoic to Early Cambrian Periods

1.
College of Resource and Environmental Engineering, Guizhou University, Guiyang 550000, China
2.
Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China

More Information

Corresponding author: Yong FU, byez1225@126.com

Received Date: 29 July 2016

Revised Date: 30 August 2016

Accepted Date: 20 September 2016

Abstract

Abstract

The Neoproterozoic to Early Cambrian period is a very important era in the history of earth evolution. Research on stratigraphic framework, paleo-oceanography, palaro-atmospheric, and paleoclimatology are focuses of international geosciences. As a new stratigraphic dating method, Re-Os isotopic dating was developed rapidly in the last decades. It has dual advantages of dating and tracing the paleoenvironment for the organic-rich black shale deposited at the important timing turning points during Neoproterozoic to Early Cambrian. Taking the Neoproterozoic to Early Cambrian strata as an example, the application of the Re-Os isotopic dating method in chronostratigraphy is described in this paper and the reliability of the Re-Os dating method by comparison with numerous precise zircon U-Pb ages is confirmed. This method has played an important role in the research of the building order in the Doushantuo Formation and the sedimentary time of the Liuchapo Formation. Combining previous Sr isotope curves with the initial ¹⁸⁷Os/¹⁸⁸Os ratios of Neoproterozoic to Early Cambrian strata, the role of Os isotopes in the interpretation of the paleoenvironment and tracing the source of Ni-Mo-V polymetallic layers is discussed. Sr isotope analysis is difficult to conduct on black shales, while initial ¹⁸⁷Os/¹⁸⁸Os can complement this defect. Therefore, the mutual combination of these two methods can contribute to the exploration of the paleoenvironment during Neoproterozoic to Early Cambrian. Finally, with the development of Re-Os isotope analysis technology and establishment of more experiment processes, it will produce a significant effect on the study of future chronostratigraphy, especially on the age-determination of the older strata.
- black shale /
- Re-Os isotope /
- initial ¹⁸⁷Os/¹⁸⁸Os value /
- Early Cambrian /
- late Neoproterozoic /
- South China

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References

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