Jiyang super-depression

• 济阳坳陷

Jiyang super-depression的用法和样例：

例句

1. Kongdian formation of Dongying Huimin Sag in Jiyang depression is a deep formation with some hardness for petroleum exploration.
   济阳坳陷东营惠民凹陷孔店组基本为深层勘探程度较低的层系。
2. Occurrences of organic matter in Paleogene argillaceous rock of Jiyang depression are primarily studied by means of fluorescent microscopy.
   应用荧光显微镜法，首次对济阳坳陷下第三系泥质岩中有机质的赋存状态进行了研究。