| 单词 | master lode |
| 释义 | > as lemmasmaster lode master lode n. ΘΚΠ the world > the earth > minerals > mineral deposits > [noun] > vein > principal master-vein1670 master lode1671 mother-lode1863 masterly lode1868 1671 Philos. Trans. (Royal Soc.) 6 2100 The ancient Tinners..affirm, that 7 Loads may lie parallel to each other in the same Hill, but yet one only Master-Load. 1758 W. Borlase Nat. Hist. Cornwall xiv. 148 That the little collateral veins are oftentimes filled, and at the same depth with like substance to the master-lode, will convince us that they were filled at the same time, by one and the same cause. 1822 Trans. Royal Geol. Soc. Cornwall 2 328 It [sc. the slate floor] is about a foot thick, and occupies the space between a side lode and a neighbouring master- lode, which is from twelve to eighteen feet. 1908 Daily Chron. 23 Dec. 5/7 A fine vein of lead ore..presenting all the characteristics of a master lode. 1987 E. F. Marina Mining Industr. Spain 78/2 The ore deposit consists of a series of hydrothermal quartz lodes,..of varied lengths from tens of metres up to the 1,400 m of the master-lode. < as lemmas |
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