acidic igneous rocks

acidic igneous rocks
rūgščiosios magminės uolienos statusas T sritis chemija apibrėžtis Magminės uolienos, turinčios >65% SiO₂. atitikmenys: angl. acidic igneous rocks rus. кислые породы

Chemijos terminų aiškinamasis žodynas – 2-asis patais. ir papild. leid. – Vilnius: Mokslo ir enciklopedijų leidybos institutas. . 2003.

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  • acidic — [ə sid′ik] adj. 1. ACID FORMING 2. acid 3. Geol. designating or of igneous rocks with more than 66% silica …   English World dictionary

  • igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …   Universalium

  • orthoclase — /awr theuh klays , klayz /, n. a common white or pink mineral of the feldspar group, KAlSi3O8, having two good cleavages at right angles, and found in silica rich igneous rocks: used in the manufacture of porcelain. [1840 50; ORTHO + clase < Gk… …   Universalium

  • alkali feldspar — Any of several common silicate minerals that often occur as whitish to variously coloured, glassy crystals. The alkali feldspars may be regarded as mixtures of sodium aluminosilicate (NaAlSi3O8) and potassium aluminosilicate (KAlSi3O8). Both the… …   Universalium

  • riebeckite — /ree be kuyt /, n. an amphibolic mineral, silicate of sodium and iron, occurring usually in feldspathoid rocks. [1885 90; named after Emil Riebeck (d. 1885), German explorer; see ITE1] * * * ▪ mineral       a sodium iron silicate mineral… …   Universalium

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  • rūgščiosios magminės uolienos — statusas T sritis chemija apibrėžtis Magminės uolienos, turinčios >65% SiO₂. atitikmenys: angl. acidic igneous rocks rus. кислые породы …   Chemijos terminų aiškinamasis žodynas

  • кислые породы — rūgščiosios magminės uolienos statusas T sritis chemija apibrėžtis Magminės uolienos, turinčios >65% SiO₂. atitikmenys: angl. acidic igneous rocks rus. кислые породы …   Chemijos terminų aiškinamasis žodynas

  • Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

  • Ore genesis — The various theories of ore genesis explain how the various types of mineral deposits form within the Earth s crust. Ore genesis theories are very dependent on the mineral or commodity. Ore genesis theories generally involve three components:… …   Wikipedia

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