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Sovite Sovite (sövite) is the coarse-grained variety or facies of a carbonatite intrusive. The finer-grained variety is known as alvikite. The two varieties are distinguished by minor and trace element compositions.〔http://sajg.geoscienceworld.org/cgi/content/abstract/102/2/109 M. J. Le Bas, ''Sovite and alvikite; two chemically distinct calciocarbonatites C1 and C2'', ''South African Journal of Geology''; June 1999; v. 102; no. 2; p. 109-121 〕 Sovite is often a medium-to-coarse-grained calcite rock with variable accessory amphibole, biotite, pyrite, pyrochlore and fluorite.〔Example from central African occurrence. A. R. Woolley, ''Alkaline Rocks and Carbonatites of the World: Africa'', Geological Society of London (May 2001), p. 139 ISBN 1-86239-083-5〕 ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Sovite」の詳細全文を読む
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