SIZE DIFFERENTIATION IN A CROSS-STRATIFIED UNIT

Authors

  • SUDHIR BASUMALLICK

    1. Geological Laboratories, Wageningen (The Netherlands)
    Search for more papers by this author
    • 1

      Present address: Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur, India.


SUMMARY

Careful sampling of the constituent laminae of cross-stratified units and their subsequent mechanical analyses have revealed a rhythmic pattern of size differentiation. The cross-strata have been analysed in terms of our existing knowledge of the mechanics of layering in granular sediments. The concept of “elementary rhythm-unit” has been introduced and the genesis of a cross-stratified unit has been reviewed in terms of the growth and interplay of the elementary rhythm-unit.

Ancillary