The line of fracture marking the intersection of a coal seam and a fault; a deposit of earthy or fragmentary material following this line.
单词 | θ6302 |
释义 | the world > the earth > minerals > mineral deposits > features of stratum or vein > [noun] > soft material (3) vees1672 The line of fracture marking the intersection of a coal seam and a fault; a deposit of earthy or fragmentary material following this line. chun1747 Mining. A leading of clay or other soft soil setting between two hard sides and sinking down. sink1747 Mining. A small vein of soft material (e.g. clay) set in hard rock and sinking down; = chun, n.1 1. Obsolete. rare. |
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