Figure F2. Portion of the single jasperoid piece recovered in Hole 1189A (Sample 193-1189A-7R-1 [Piece 17, 99–102 cm; CSIRO 142697]). The jasperoid, containing scattered pyrite grains and small irregular cavities lined by quartz crystals, forms the matrix in a breccia with disoriented fragments of altered perlitic wallrock. Narrow selvages of colorless quartz surrounding the wallrock fragments appear continuous with thin quartz veins (not visible) cutting both jasperoid and wallrock. The prominent fracture on the left is lined with inclusion-free drusy quartz and rare blades of anhydrite. Paler red areas are unpolished saw cuts.

Figure F2. Portion of the single jasperoid piece recovered in Hole 1189A (Sample 193-1189A-7R-1 [Piece 17, 99–102 cm; CSIRO 142697]). The jasperoid, containing scattered pyrite grains and small irregular cavities lined by quartz crystals, forms the matrix in a breccia with disoriented fragments of altered perlitic wallrock. Narrow selvages of colorless quartz surrounding the wallrock fragments appear continuous with thin quartz veins (not visible) cutting both jasperoid and wallrock. The prominent fracture on the left is lined with inclusion-free drusy quartz and rare blades of anhydrite. Paler red areas are unpolished saw cuts.