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Fig. 8 | Progress in Earth and Planetary Science

Fig. 8

From: Infiltration metasomatism of the Allende coarse-grained calcium-aluminum-rich inclusions

Fig. 8

a, c Combined x-ray elemental maps in Mg (red), Ca (green), and Al (blue), and (b, df) backscattered electron images of the interior regions of Type C CAIs (a, b) 160 and (cf) 100. Regions outlined in c and e are shown in detail in df, respectively. Lacy melilite composed of åkermanitic melilite with numerous rounded inclusions of anorthite is pseudomorphically replaced to various degrees by grossular-forsterite-monticellite and grossular-Al-diopside. Anorthite groundmass around melilite pseudomorphs shows little evidence for alteration: small amount of Na-melilite occurs along edges of melilite pseudormorphs

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