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、绿质泥岩夹砂质、质纹层或条带为特征,并编制了该地区桑塔木组岩相古地理图。

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.

该油岩呈深或棕褐 ,理发育 ,主要由富含有机质纹层和钙质纹层形米级沉积层偶组。