yóu​mǔ​yè​yán

oil shale

Senses

油母页岩/ 油母頁岩 yóu​mǔ​yè​yán oil shale

A type of shale containing combustible organic material; it is light to dark brown and can be split into thin layers to extract shale oil.

References

same_as 油母页岩/油母頁岩 油页岩/油頁岩
same_as 油页岩/油頁岩 油母页岩/油母頁岩