Fig. 1
From: Infiltration metasomatism of the Allende coarse-grained calcium-aluminum-rich inclusions
Combined x-ray elemental maps in (a, c, g, k, m, o) Mg (red), Ca (green), and Al (blue), (b, d, h, l, n) Cl (red), Na (green), and Al (blue) and elemental maps in (e, j) Ca, (f) Si, (j) Mg, and (p) Na of representative samples of coarse-grained CAIs from the CV3 carbonaceous chondrites Allende studied: ALH2 (FTA/CTA), TS2 (CTA), TS23 (B1), TS31 (B2), Al-2 (FoB), and 160 (C). Regions outlined in “g−j” are shown in detail in Fig. X. All CAIs are surrounded by Wark-Lovering rims (WLR), fine-grained matrix-like rims (FGR), and a layer of Ca,Fe-rich silicates (CaFe-sil). Nepheline and sodalite are concentrated in the peripheral portions of CAIs. Abundant nepheline grains occur also in fine-grained matrix-like rims. Wadalite/adrianite are found exclusively in cores of Type B CAIs (high Cl signal in b comes from epoxy). fas = Al,Ti-diopside; mel = melilite. Hereafter: abbreviations of secondary minerals are listed in Table 1