sandy shale
英
美
- sandy adj.含沙的;沙色的;不稳固的Sandy.n.桑迪(人名)
- shale n.页岩;泥板岩
- Thin layers of sandy shale, and carbonaceous fragments are locally present.
局部出现砂质页岩薄层和碳质碎屑。
- In the stone coal layer and the overlying black shale, there is a pyrite layer.
在石煤层或其上部的碳质页岩中含黄铁矿层。