ultrabasic rock

ultrabasic rock
ultrabazinė uoliena statusas T sritis chemija apibrėžtis Magminė uoliena, turinti iki 40% SiO₂. atitikmenys: angl. ultrabasic rock rus. ультраосновная порода

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

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  • ultrabasic rock — /ʌltrəˌbeɪsɪk ˈrɒk/ (say ultruh.baysik rok) noun a rock which contains less silica than basic rock; rock containing less than 45 per cent of silica …  

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  • Ultramafic rock — Ultramafic (also referred to as ultrabasic) rocks are igneous and meta igneous rocks with very low silica content (less than 45%), generally >18% MgO, high FeO, low potassium, and are composed of usually greater than 90% mafic minerals (dark… …   Wikipedia

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