深灰

The platform foreslope is composed of the dark grey and celadon calcareous mudstone,siltstone,sandstone intercalated with limestone conglo...

内陆棚以深灰、灰绿灰质泥岩夹浅灰砂质、灰质纹层条带为特征,并编制了该区桑塔木组的岩理图。

In lamina of shale which deposited in deep lake away from paleo-debouchment in the Shahejie Formation in the Jiyang Depression, some aeolian silty sand was discovered.

该油岩呈深灰褐 ,理发育 ,主要由富含有机质纹层和浅灰钙质纹层形成的毫米级沉积层偶组成。