| 21. | Mafic enclaves are found in the post-caldera lavas.
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| 22. | Basaltic lava flows in the Picotani area are the only mafic volcanics.
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| 23. | These rocks are mafic and often hypersthene, nepheline or quartz normative.
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| 24. | Water and other volatiles can more easily and gradually escape from mafic lava.
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| 25. | Most mafic-lava volcanoes are shield volcanoes, like those in Hawaii.
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| 26. | They are essentially of intermediate or of mafic character.
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| 27. | Amphibolites need not be derived from metamorphosed mafic rocks.
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| 28. | There are no absorption features of mafic minerals found.
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| 29. | Chromitite layers occur commonly in large mafic layered intrusions.
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| 30. | The basalt is probably the same as mafic lavas of the Kanunnah Subgroup.
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