الصفحة الرئيسية > Term: gobbing slate
gobbing slate
A thick layer of slate between two seams of coal. The lower seam is mined and the upper seam and the slate are shot down; the coal is loaded out and then the slate is gobbed.
- قسم من أقسام الكلام: noun
- المجال / النطاق: التعدين
- الفئة: تعدين عام; Mineral mining
- Government Agency: USBM
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- ed.young
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