| 释义 |
alluvial, a. and n.|əˈl(j)uːvɪəl|
[f. L. alluvi-um + -al1. Cf. mod.Fr. alluvial.]
A. adj. Of, pertaining to, or consisting of alluvium; deposited from flowing water; or pertaining to such a deposit. Applied to various formations, as alluvial cone, alluvial fan, etc.: see the ns.
1802Playfair Illustr. Hutton. Th. 463 Contained in the soil or alluvial earth. 1850Layard Nineveh xiii. 342 The soil, an alluvial deposit, was rich and tenacious. 1858Geikie Hist. Boulder x. 194 Alluvial matter still darkened the water. 1878Huxley Physiogr. 142 The rich alluvial mud of Egypt.
B. n. An alluvial deposit; alluvium; spec. ‘the common term in Australia and New Zealand for gold-bearing alluvial soil’ (Morris).
1866Harper's Mag. Sept. 544/1 Nearly two thousand acres of the rich alluvial at the junction of the Ohio and Great Miami rivers. 1888‘R. Boldrewood’ Robbery under Arms III. xviii. 270 The whole of the alluvial will be taken up, and the Terrible Hollow..will re-echo with the sound of pick and shovel. 1890Pall Mall Gaz. 16 Dec. 2/1 There is..every indication of mineral wealth, but it has not been sufficiently proved yet for one to say whether there is good alluvial or not. 1944J. A. Lee Shining with Shiner (1963) 60 Men were out shovelling at and turning over the alluvials. |