http://resource.geosciml.org/classifier/cgi/lithology/basic_igneous_rock
broader |
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definition | Igneous rock with between 45 and 52 percent SiO2. | ![]() |
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narrower |
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source | after LeMaitre et al. 2002 | ![]() |
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type |
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in scheme | simplelithology | |||||||
is primary topic of | basic igneous rock |