Figure F299 (continued). D. Chilled margin around a promontory in the wallrock (Thin Section 18; Sample 312-1256D-179R-1, 5–9 cm) (plane-polarized light; FOV = 4.5 mm). E. Chilled margin with banding of baked, spherulite, and cryptocrystalline zones (Thin Section 13; Sample 312-1256D-176R-2, 0–2 cm) (plane-polarized light; FOV = 6 mm). F. Spherulite structure with “wavy” layers of now-altered margin material (Thin Section 14; Sample 312-1256D-176R-2, 3–9 cm) (plane-polarized light; FOV = 3.37 mm). G. “Wavy” layers (Thin Section 14; Sample 312-1256D-176R-2, 3–9 cm) (reflected light; FOV = 2.25 mm). H. Chilled margin with altered baked zone and intrusive material (interval 312-1256D-175R-1, 48–51 cm). All structures are cut and offset by late veins.
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