单词	carbonatite
释义	carbonatite /kɑːˈbɒnətʌɪt / noun Geology A lava or other igneous rock composed chiefly of carbonates rather than silicates: unusual magmas such as carbonatites [mass noun]: carbonatite is rich in calcium carbonate... Next in abundance, although rare in comparison to silicate rocks, are carbonate-based magmas and lavas known as carbonatites, which have little (less than 15 per cent by weight) or no silica content. Indeed, pegmatites from gabbros to granites to carbonatites to anorthosites are known. It consists of gabbroic, ultramafic and alkaline rocks, mafic dyke swarms and carbonatites.
随便看	unnoticed unnoticing unnotified unnotify unnoting unnourishable unnourished unnourishing unnourishment unnuanced unnumberable unnumbered unnumerable un-nun unnursed unnurtured unnutritious unnutritive UNO unoaked unobedient unobeyed unobeying unobjected unobjectionable

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