Accueil > Term: draw slate
draw slate
A soft slate, shale, or rock approx. 2 in (5.08 cm) to 2 ft (0.61 m) in thickness, above the coal, and which falls with the coal or soon after the coal is removed.
- Partie du discours : noun
- Secteur d’activité/Domaine : Mines
- Catégorie : Exploitation minière; Mineral mining
- Government Agency: USBM
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Créateur
- ed.young
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(V.I.P) 21084 points - 100% positive feedback
(Milwaukee, United States)
