Home > Term: underclay limestone
underclay limestone
A thin, dense, nodular, relatively unfossiliferous fresh-water limestone underlying coal deposits, so named because it is closely related to underclay.
- Sõnaliik: noun
- Valdkond/domeen: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)