汝州阳坡一带的洛峪口组，归属于上元古界洛峪群。洛峪口组自下而上可划分出四个岩性段，其中一、二段相当于汝阳洛峪口村附近建组剖面上的洛峪口组，三、四段则为汝州地区新发现的地层，它们之间均呈整合接触关系，时代归属晚元古代青白口纪。洛峪口组四个段，在岩性组合上具有较强的规律性，反映出潮下、潮间、潮上的沉积环境交替出现。海平面振荡频繁，发育三个Ⅱ类层序，除Ⅱ３顶部为Ⅰ型层序界面外，其他层序的顶底界面均为Ⅱ型层序界面。三个层序均具有共同的沉积特征，海侵体系域不发育，饥饿段出现的层位低 Luoyangkou area along the Ruzhou Yangpu Formation belongs to the Upper Proterozoic Luoyu Group. The Luoyukou Formation can be divided into four lithology segments from bottom to top, of which the first and second segments are equivalent to the Luoyukou Formation on the section of the Jiangyou Formation near Luoyangkou, Ruyang, and the third and fourth sections are the Ruzhou areas The newly discovered strata, between them all showed an integrated contact relationship, the era belongs to the late Proterozoic Qingbaikikikiji. The four sections of the Luoyukou Formation have strong regularity in the lithologic assemblage, which reflects the alternation of sedimentary environment in the tide, intertidal and tide. The sea level oscillations are frequent and three class Ⅱ sequences are developed. The top and bottom interface of the other sequences are type Ⅱ sequence boundaries except for the type Ⅰ sequence interface at the top of Ⅱ 3. All three sequences have common sedimentary features, the transgressive system tract is not well developed, and the horizons in the starvation stage are low