3.2.2 Methodology of Stratigraphic subdivision and correlation 生物地层单位 地球物理单位 组和段有孔虫软体动物孢子和花粉地磁反转地震波速统和阶 ● Lithology S带 R带 ● Fossils Q ● Physical 3500 ● Chemical P带 3200 Architectures R ● others 州 51003.2.2 Methodology of Stratigraphic subdivision and correlation ●Lithology ● Fossils ● Physical ●Chemical ● Architectures ●others