Trachyte

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Trachyte
Latite
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Classification of Igneous Rocks
Figure 2-4. A chemical classification of
volcanics based on total alkalis vs. silica.
After Le Bas et al. (1986) J. Petrol., 27,
745-750. Oxford University Press.
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Fig. 7.18
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p.192

• original artwork by Gary Hincks

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