Figure F14. Spherulitic texture can be observed in some thin sections of samples from Hole 1188A. A. Parts of the groundmass of Unit 6 consist of coalesced spherulites indicating that the unit underwent high-temperature devitrification prior to solidification. Arrows = faint circular features that outline the margins of individual spherulites in plane-polarized light (interval 193-1188A-7R-2 [Piece 2, 39-41 cm]; width of view = 1.40 mm. Photomicrograph ID# 1188A_37; thin section 6]). B. Radiating aggregates of fine quartz and feldspar needles can be recognized in the area shown in (A) when the polarizers are crossed (width of view = 1.40 mm. Photomicrograph ID# 1188A

Figure F14. Spherulitic texture can be observed in some thin sections of samples from Hole 1188A. A. Parts of the groundmass of Unit 6 consist of coalesced spherulites indicating that the unit underwent high-temperature devitrification prior to solidification. Arrows = faint circular features that outline the margins of individual spherulites in plane-polarized light (interval 193-1188A-7R-2 [Piece 2, 39-41 cm]; width of view = 1.40 mm. Photomicrograph ID# 1188A_37; thin section 6]). B. Radiating aggregates of fine quartz and feldspar needles can be recognized in the area shown in (A) when the polarizers are crossed (width of view = 1.40 mm. Photomicrograph ID# 1188A_38; thin section 6]).