| 单词 | palaeocurrent | 
| 释义 | > as lemmaspalaeocurrent   palaeocurrent  n.  Brit. , U.S. Geology a current, usually of water, which existed at some time in the past, as inferred from the features of sedimentary rocks. ΘΚΠ the world > the earth > water > flow or flowing > current > 			[noun]		 currentc1380 veina1500 ford1563 tide1585 vein1600 draught1601 currency1758 stream-currenta1830 palaeocurrent1955 1955    Bull. Geol. Soc. Amer. 66 1606 		(heading)	  				Paleocurrents of Lake Superior Precambrian quartzites. 1971    Nature 28 May 245/2  				A W.N.W. to N. palaeocurrent component predominates in the channel sandstones with pedogenic modification..occurring on most proximal floodplain deposits. 1987    R. L. Ciochon  & A. B. Chiarelli in  R. L. Ciochon  & J. G. Fleagle Primate Evol. & Human Origins xv. 114  				These patterns of paleocurrent flow in the Caribbean would argue strongly against rafting as a means of dispersal between preexisting volcanic island arcs. < as lemmas | 
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