东海陆架第四纪地层层序的初步研究

Preliminary Study on the Quaternary Stratigraphic Sequence in the Continental Shelf of the East China Sea

根据我局在东海陆架所获得的区域海洋地质和工程地质调查资料,对已有的第四纪地质孔进行统一的第四纪地层划分和对比,建立了东海陆架第四纪地层层序。将第四系四分,从老到新依次为下更新统西湖组、中更新统金鸡山组、上更新统西泠组、全新统海礁组或下全新统鸡骨礁组、中全新统大戟山组、上全新统嵊泗组。

Based on the area marine geological and engineering geological investigating data in the continental shelf of the East China Sea obtained by the Bureau of Marine Geological Survey of Shanghai, the Quaternary strata have been divided and correlated in the exist Quaternary geological holes, and the Quaternary stratigraphic sequence can be established in the continental shelf of the East China Sea. The Quaternary series in.the continental shelf can be divided into four parts, they are Lower Pleistocene Xihu Formation (Q1x), Middle Pleistocene Jingjishan Formation (Q2jj), Upper Pleistocene Xiling Formation (Q3x) and Holocene Haijiao Formation (Q4h) or Jigujiao Formation (Q4j), Dajishan Formation (Q4d), Chengsi Formation (Q4c), which correspond to the lower, middle and upper Holocene respectively.