Fig. 3: Carbonate-sulfide textures in the mid crust.
From: Fluxing of mantle carbon as a physical agent for metallogenic fertilization of the crust

a Calcite present alongside sulfide from Sron Garbh with amphibole (amp), clinoproxene (cpx), and muscovite (mu) alteration (reflected and transmitted light, crossed polars); b calcite alongside sulfide from Sron Garbh (transmitted light, crossed polars); c interstitial calcite in lamprophyric cumulate from Sron Garbh with no associated sulfide (transmitted light, crossed polars); d sulfide bleb with interstitial calcite in shonkinite from Mordor with phlogopite (phlog), amphibole (amp), K-felsdpar (K-fsp), and apatite (ap) (reflected and transmitted light, crossed polars); e enlarged view of area shown in d (backscattered SEM image) showing calcite as an interstitial phase to pyrite intergrown with chalcopyrite (cpy), millerite (mil), and minor barite (bar); f sulfide bleb with calcite inclusions in shonkinite from Mordor (transmitted light, plane polars); g calcite inclusions in sulfide in area shown in f (transmitted light, crossed polars).