›› 1987, Vol. 7 ›› Issue (2): 117-127.

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DEPOSITIONAL CYCLES OF THE QUATERNARY IN THE HANJIANG DELTA

Zong Yongqiang   

  1. Guangzhou Institute of Geography
  • Online:1987-04-30 Published:1987-04-30

Abstract: Zong Yongqiang (Guangzhou Institute of Geography)The depositional cycles of the Quaternary in the Hanjiang Delta have been distinguished according to the comprehensive facies analysis of 7 tipical bore hole sections and the comparison among the other 13 bore hole sections.The division basis of the depositional cycles,which includes the analysis of fossil diatom,spore-pollen,grain size,trace element and heavy mineral,has been introduced in detail from FIK25 bore hole section as a sample.It has been considered that the Quaternary of the delta is composed of two depositional cycles from land to delta facies and each cycle includes three or four subcy-cles from deita plain to delta front or from delta front to predelta.Regional diversity and chronology of the depositional cycles in this area have been represented and the transgression history of the delta area,which is based on the division result of the depositional cycles,has also been discussed.