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豫北地区中元古界-寒武系岩层出露广泛,露头良好,层位稳定,沉积构造发育。是层序地层研究的理想区域。通过剖面基本层序研究、沉积相研究及区域追索进行了层序地层划分的探讨。共识别出二个Ⅰ型(SB1)层序界面和12个Ⅱ型(SB2)层序界面.识别出2个超序(Ⅱ级层序.编号Ⅱ1-Ⅱ3)及15个层序(Ⅲ级层序.编号Ⅲ1-Ⅲ15)。
The Middle Proterozoic-Cambrian rock outcrops in the north of Henan Province are widely exposed, with good outcrops, stable layers and sedimentary structures. It is an ideal area for the study of sequence stratigraphy. The stratigraphic stratigraphic division is discussed through the basic sequence study of sections, sedimentary facies research and regional reclamation. Two type Ⅰ (SB1) sequence interfaces and 12 type Ⅱ (SB2) sequence boundaries were identified, and two supergroups (Ⅱ-Ⅱ and Ⅱ-Ⅲ) Sequence No. III1-III15).