Simple Lithology
exotic composition igneous rock
http://resource.geosciml.org/classifier/cgi/lithology/exotic_composition_igneous_rock
| definition | Rock with 'exotic' mineralogical, textural or field setting characteristics; typically dark colored, with abundant phenocrysts. Criteria include: presence of greater than 10 percent melilite or leucite, or presence of kalsilite, or greater than 50 percent carbonate minerals. Includes Carbonatite, Melilitic rock, Kalsilitic rocks, Kimberlite, Lamproite, Leucitic rock and Lamprophyres. |  |
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| source | Gillespie and Styles 1999; LeMaitre et al. 2002 | |
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| in scheme | simplelithology | ||||||||||
| is primary topic of | exotic composition igneous rock | ||||||||||