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开平盆地府君山组可分三段,下、中部为豹皮灰岩段,上部过渡段,顶部为白云岩段。所谓过渡段即为白云岩、灰岩及豹皮灰岩不均匀分布层段,其特点是每一种岩石中有另两类岩石的透镜体。本区府君山组与其上下地层均为平行不整合接触,形成底部间断的运动曾被命名为“蓟县运动”,因其延续时间已超过一个纪,建议改为震旦纪上升。这一运动在区内以震荡运动为主,局部有轻微的褶皱变动。本文认为府君山组豹皮灰岩形成于准同生阶段,豹斑的形成:1.受原生沉积构造的控制;2.需相对动荡的沉积条件;3.与泥质物的适度增加有关。
The Fujun Mountain Formation in the Kaiping Basin can be divided into three sections, the middle and lower parts are the leopard skin limestone section, the upper transition section and the dolomite section at the top. The so-called transitional zone is the dolomite, limestone and leopard skin unevenly distributed intervals, which is characterized by each rock has two other types of rock lens. The Junshan Formation in this area is in parallel and unconformity contact with the upper and lower strata, and the movement of forming the bottom discontinuity was named as “Jixian Movement”. Because of the extension of more than one discipline, it is proposed to increase the Sinian. This movement is dominated by concussion movements in the area, with slight fold changes locally. This paper argues that the Fu Jun Shan Formation leopard limestone formed in the quasi-symbiotic stage, the formation of leopard spots: 1. By the original depositional structure control; 2. To be relatively turbulent deposition conditions; 3. With the appropriate increase in the amount of mud material.