Figure F6. Orthoclase in chilled margins. A. Orthoclase (OR) in feldspar crystal cut by a chilled margin comprising aphanitic aggregate of chlorite (Chl) (Sample 309-1256D-136R-1, 4–6 cm). B. Interstitial orthoclase and chlorite in host rock adjacent to chilled margin (Sample 309-1256D-136R-1, 4–6 cm). C. Orthoclase and albite (Ab) in a feldspar phenocryst (Sample 309-1256D-161R-2, 6–8 cm). D. Vein of chlorite and chalcopyrite (CuFeS) and a small nodule of NaCl. The larger feldspar grain cut by the vein is rich in orthoclase (Sample 309-1256D-161R-2, 6–8 cm). E. Orthoclase-rich clast suspended in a chilled margin (Sample 309-1256D-136R-1, 4–6 cm). F. Mixed albite and anorthite (An) adjacent to a clinopyroxene cryst, adjacent to an orthoclase cryst, suspended in a chilled margin (Sample 309-1256D-161R-2, 6–8 cm).
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