fig05.htm

Figure 5. The CaO-Al2O3 diagram of the fergusites (1) and syenitoids (2). The potassic rocks are classified into the lamproite (I), kamafugite (II), and tephrite-leucitite (III) series [Bogatikov and Kononova, 1991]. See Figure 2 for the explanation of the other symbols.


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