单词 | microporphyritic |
释义 | > as lemmasmicroporphyritic microporphyritic adj. Brit. /ˌmʌɪkrə(ʊ)pɔːfᵻˈrɪtɪk/ , U.S. /ˌmaɪkroʊˌpɔrfəˈrɪdɪk/ Geology consisting of porphyritic rock in which the phenocrysts are of microscopic size.ΚΠ 1878 P. H. Lawrence tr. B. von Cotta Rocks Classified (new ed.) 67 Micro-porphyritic textures or structures of rock. 1926 G. W. Tyrrell Princ. Petrol. v. 86 The terms microporphyritic and microphenocrysts may be used when the texture can only be made out with a microscope. 1982 Earth & Planetary Sci. Lett. 60 439/1 The basalts that were studied..range in texture from sparsely phyric to microporphyritic. < as lemmas |
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