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Geoscience ›› 2019, Vol. 33 ›› Issue (05): 1128-1136.DOI: 10.19657/j.geoscience.1000-8527.2019.004

• Environmental Geology • Previous Articles    

Research on the Surface Textures of the Quartz Sand in Diamictons

CHEN Ruichen1(), CHEN Jian1(), CUI Zhijiu2   

  1. 1. School of Engineering and Technology,China University of Geosciences,Beijing 100083,China
    2. School of Urban and Environmental Sciences,Peking University,Beijing 100871,China
  • Received:2018-12-02 Revised:2019-04-26 Online:2019-10-26 Published:2019-10-28
  • Contact: CHEN Jian

Abstract:

Due to the characteristics of quickness and no-sorting in the transport and deposition processes, the cause of formation identification of diamictons has become the main concern among domestic and foreign scho-lars. The comprehensive study on the surface textures of quartz sands in diamictons is one of the common me-thods to reconstruct sedimentary environment, which plays an important role in the identification of diamictons. This paper summarized the previous studies to construct an interpretation scheme and combination mode to differentiate among deposits of till, landside, debris, and dam-break flood deposits based on micro-textures. Moreover, the relationship between the particle contact mode and quartz sand surface micro-texture of these high-energy events was analyzed. Based on the current difficulties in the study of surface textures of quartz sands in diamictons, the future research direction and the key problem to be solved were proposed.

Key words: diamicton, quartz sand, surface texture, combination mode, particle contact mode, sedimentaryenviroment

CLC Number: