单词 | microclastic |
释义 | > as lemmasmicroclastic microclastic adj. Brit. /ˌmʌɪkrə(ʊ)ˈklastɪk/ , U.S. /ˌmaɪkroʊˈklæstɪk/ Geology finely clastic.ΚΠ 1888 J. J. H. Teall Brit. Petrogr. 439 Microclastic, an epithet applied by Naumann to such clastic rocks as are composed of small fragments. 1975 G. Anderson Coring ii. 29 Microclastic micrite is characterized by dull luster, occasional fossil fragments, silt-sized quartz grains, and perhaps a few calcite grains. 1982 Scientia Geol. Sinica 87 The temperature of homogenization is 980–1140°C for acidic rocks (granite, adamellite), 980–1135°C for volcanic rocks (quartz-keratophyre, lava, microclastic tuff lava),..and 1120–1450°C for basalts. < as lemmas |
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