| 单词 | non-clastic | 
| 释义 | > as lemmasnon-clastic   non-clastic adj.  Brit. , U.S. Geology (of rock) formed organically or chemically rather than by the mechanical deposition of particles from pre-existing rocks. ΚΠ 1904    A. W. Grabau in  Amer. Geologist Apr. 229  				Endogenetic rocks may also be called non-clastic. 1949    Sci. Monthly 68 427/2  				Two chapters are devoted to color and classification of sedimentary rocks, and then a chapter to each of the principal types..and to the nonclastic sediments. 1995    Mineralium Deposita 30 300  				Adding a ‘non-clastic iron’ component (iron not associated with detrital particles either as mineral constituent or grain coating)..would produce an upward displacement. < as lemmas | 
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