单词 | microphenocryst |
释义 | > as lemmasmicrophenocryst microphenocryst n. Brit. /ˌmʌɪkrə(ʊ)ˈfiːnə(ʊ)krɪst/ , /ˌmʌɪkrə(ʊ)ˈfɛnə(ʊ)krɪst/ , U.S. /ˌmaɪkroʊˈfinəˌkrɪst/ , /ˌmaɪkroʊˈfɛnəˌkrɪst/ ΚΠ 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 the use of a microscope. 1946 Jrnl. Geol. (Chicago) 54 27/2 Microphenocrysts of augite are set in a microcrystalline to cryptocrystalline and hyaline groundmass. 1990 Jrnl. Petrol. 31 802 Quantitative modelling of the evolved Tristan lavas is made difficult by the relative abundance of exotic microphenocryst phases, e.g., apatite, sphene, and hauyne. < as lemmas |
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