Figure F171 (continued). E. Alteration front between leucocratic zone and olivine gabbro (interval 305-U1309D-149R-2, 42–54 cm). Yellow box = location of F and G. F. Gradient of the amount of alteration from the leucocratic zone to the olivine gabbro (Sample 305-U1309D-149R-2, 44–47 cm) (plane-polarized light, FOV = 2 cm). G. Same as F; cross-polarized light. Yellow box = location of H. H. Variations in the amount of alteration coronas from the leucocratic zone to the olivine gabbro left to right (cross-polarized light; FOV = 11 mm).
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