Fig. 3: TIMA automated mineralogy images of bleached alteration rims (sample MNP14-4-3).
From: Reaction-driven magmatic crystallisation at the Maoniuping carbonatite
a A quartz (Qz) syenite clast with red rectangles showing thin section locations. White areas are holes filled with epoxy resin. b Gradual decrease of quartz from syenite to antiskarn. Note abundant phlogopite at the contact. c Complete dissolution of quartz and K-feldspar from the syenite. Yellow–black square shows the location of pyroxene mapped in Fig. 4c–g. d A second syenite–antiskarn clast (sample MNP14-1) used for mapping. The red rectangle marks the approximate location of (e). e The antiskarn dominated by K-feldspar with perthite exsolution, zoned pyroxene, and abundant phlogopite along the fenitised quartz syenite. Samples obtained adjacent to ore veins similar to those shown in Fig. 2b, e.
