Chemijos terminų aiškinamasis žodynas – 2-asis patais. ir papild. leid. – Vilnius: Mokslo ir enciklopedijų leidybos institutas. Kazys Daukšas, Jurgis Barkauskas, Vitas Daukšas. 2003.
Porphyritic granite — Granite Gran ite (gr[a^]n [i^]t), n. [It. granito granite, adj., grainy, p. p. of granire to make grainy, fr. L. granum grain; cf. F. granit. See {Grain}.] (Geol.) A crystalline, granular rock, consisting of quartz, feldspar, and mica, and… … The Collaborative International Dictionary of English
porphyritic — /pawr feuh rit ik/, adj. Petrol. of, pertaining to, containing, or resembling porphyry, its texture, or its structure. [1375 1425; late ME porphiritike < ML porphyriticus < Gk porphyritikós of PORPHYRY; see IC] * * * … Universalium
porphyritic — /pɔfəˈrɪtɪk/ (say pawfuh ritik) adjective 1. of, relating to, containing, or resembling porphyry. 2. denoting, relating to, or resembling the texture or structure characteristic of porphyry …
Rock microstructure — includes the texture of a rock and the small scale rock structures. The words texture and microstructure are interchangeable, with the latter preferred in modern geological literature. However, texture is still acceptable because it is a useful… … Wikipedia
basalt — basaltic, basaltine /beuh sawl tin, tuyn/, adj. /beuh sawlt , bas awlt, bay sawlt/, n. the dark, dense igneous rock of a lava flow or minor intrusion, composed essentially of labradorite and pyroxene and often displaying a columnar structure.… … Universalium
por|phy|roid — «PR fuh royd», noun. a rock resembling porphyry or of porphyritic structure, especially a sedimentary or igneous rock that has been altered by some metamorphic agency and has taken on a more or less perfectly developed porphyritic structure … Useful english dictionary
Schist — The schists constitute a group of medium grade metamorphic rocks, chiefly notable for the preponderance of lamellar minerals such as micas, chlorite, talc, hornblende, graphite, and others. Quartz often occurs in drawn out grains to such an… … Wikipedia
Porphyrite — Por phy*rite, n. (Min.) A rock with a porphyritic structure; as, augite porphyrite. [1913 Webster] … The Collaborative International Dictionary of English
dacite — da·cite (dāʹsīt ) n. A light gray volcanic rock containing a mixture of plagioclase and other crystalline minerals in glassy silica, similar in appearance to rhyolite. [After Dacia.] * * * ▪ mineral volcanic rock that may be considered a… … Universalium
porphyroid — /ˈpɔfərɔɪd/ (say pawfuhroyd) noun 1. a rock resembling porphyry. 2. a sedimentary rock which has been altered by some metamorphic agency so as to take on a slaty and more or less perfectly developed porphyritic structure …
