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
Rockhound. The two major properties used to classify igneous rock are: Crystal Size/Texture --Small crystals are indicative of rapid above ground cooling of lava into what is classified as extrusive igneous rock such as basalt, obsidian, or rhyolite.ockhound. The two major properties used to classify igneous rock are: Crystal Size/Texture --Small crystals are indicative of rapid above ground cooling of lava into what is classified as extrusive igneous rock such as basalt, obsidian, or rhyolite.