The study of speech sounds in language or a language with reference to their distribution and patterning and to tacit rules governing pronunciation. 2. The sound system of a language: the phonology of English. phoÂ·noÂ·logâ²ic (fÅâ²nÉ-lÅjâ²Ä­k) , phoâ²noÂ·logâ²iÂ·cal (-Ä­-kÉl) adj.
What does a porphyritic texture indicate about the history of an igneous rock? the magma sat and cooled a bit below the Earth's surface, thus giving time for the large crystals to grow, before erupting onto the surface and cooling very quickly
(Phaneritic) an igneous rock texture in which the crystals are roughly equal in size and large enough so the individual minerals can be seen easily Diorite grey to dark grey intermediate intrusive igneous rock composed of plagioclase feldspar, biotite, hornblende, and/or pyroxene Extrusive Igneous activity that occurs at Earth's surface