Figure F181. A. Fiber vein with intense alteration halo in olivine-rich troctolite (interval 305-U1309D-234R-2, 0–18 cm). Trend of fiber is subparallel to the vein. B. Trend of fibers inside a vein (Sample 305-U1309D-234R-2, 9–12 cm) (plane-polarized light; field of view [FOV] = 2 cm). Yellow box = location of D. C. Same as B; cross-polarized light. Yellow box = location of E. D. Broken line traces fiber orientations from the wall toward the vein (plane-polarized light; FOV = 5.5 mm). E. Same as D; cross-polarized light.
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