| 单词 | reef wash | 
| 释义 | > as lemmasreef wash   reef wash  n. Australian Mining (now chiefly historical) a deposit of wash-dirt lying over bedrock. ΚΠ 1869    R. B. Smyth Gold Fields Victoria Gloss. 620  				Reef-wash—A deposit of washdirt spread over an expanse of flat or undulating reef (i.e., bed-rock), or lodged in a hollow in the reef. 1880    L. Fison  & A. W. Howitt Kamilaroi & Kurnai 272  				The great ‘reef washes’ of Ballarat are to be referred to the period of depression. 2002    Austral. Jrnl. Earth Sci. 49 870/1  				Historically these deposits were differentiated as oldest gold drift and older gold drift..or reef wash and deep lead. < as lemmas | 
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