With methods of paleomagnetism, magnetic susceptibility and lithological analysis, a reliable chronostratigraphic framework of core DY03 in the Yangtze River delta was established.

• 通过对长江三角洲DY03孔古地磁、磁化率以及岩性分析，初步建立了研究钻孔较为可靠的年代地层框架。