油页岩

More ammonium sulphate solution is being recovered in the process of distilling oil shale.

在提炼油过程中回收硫酸铵液比过去多了。

Resinite is a rich n1aceral in Teriary humic coal,boghead-cannel coal and oil shale fromHuangxian Coalfield.

黄县煤田第三纪腐殖煤、藻烛煤、油显微组分富含树脂体。

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.

该油呈灰色或棕褐色 ,理发育 ,主要由富含有机质纹层和浅灰色钙质纹层形成毫米级沉积层偶组成。