| 词条 | Sovite |
| 释义 |
|name=Sovite |alternative_name=Calciocarbonate |type=Igneous |image=File:Sovite - Magnet Cove Carbonatite 2.jpg |image_size=300 |alt= |caption=Sovite (Locality: Cove Creek, Arkansas. Specimen 7.5 cm) |composition= Majority Calcite |composition_secondary= }}Sovite (or sövite) is the coarse-grained variety (or facies) of carbonatite, an intrusive, igneous rock. The finer-grained variety of carbonatite is known as alvikite. The two varieties are distinguished by minor and trace element compositions.[1] Sovite is often a medium-to-coarse-grained calcite rock with variable accessory amphibole, biotite, pyrite, pyrochlore and fluorite.[2] See also
References1. ^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 {{petrology-stub}}2. ^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}} 2 : Petrology|Igneous rocks |
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