Figure 22. Comparison of chondrite-normalized REE abundance in rocks of silicic high-Mg (boninite-like) series: 1-3 - composition of chilled zones in some layered intrusions (after [Hatton and Sharpe, 1989]): 1 - Sudbury, 2 - Skaergaard, 3 - Kiglapait; 4 - average composition of Papua-New Guinea boninites [Hickey and Frey, 1982]; 5 - gabbronorite from the chilled zone of the Shalozero-Burakovka Body (see Table 13). Shaded areas: A - micropyroxenite from the chilled zone of the Bushveld intrusion (after [Hatton and Sharpe, 1989]) and B - high-Mg komatiite basalt (picrite) from the Vetrennyi Belt, Southern Karelia, Russia (after [Pukhtel et al., 1993]).