单词 | cascalho |
释义 | ‖ cascalho|kaˈskaljo| Also -hao. [Pg.] In Brazil, a deposit of pebbles, gravel, and ferruginous sand, containing diamonds or gold.
1812J. Mawe Trav. Brazil v. 77 The gold lies..in a stratum of rounded pebbles and gravel, called cascalhão. 1823― Diamonds (ed. 2) 35 In one part of the Diamond District the cascalho forms a solid breccia. 1867C. W. King Precious Stones (ed. 2) 59 The gravel—cascalhao—filling their beds is dug out. 1910Encycl. Brit. VIII. 160/1 The diamond is found..in the gravels of the present rivers, embedded in a ferruginous clay-cemented conglomerate known as cascalho. 1957Ibid. IV. 838/2 Carbonado..is found almost exclusively in the state of Bahia in Brazil, where it occurs in the cascalho or diamond-bearing gravel. |

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