Figure 9. Sketch of various glass alteration features. A. Simple vein (sketched from Pl. 1, Fig. 3; Sample 168-1027C-1R-6, 67-70 cm [Piece 2]). B. Composite veins (Sample 168-1027C-1R-6, 67-70 cm [Piece 2]). C. Glassy shard from hyaloclasite breccia of Hole 1026B (Sample 168-1026B-3R-1, 18-25 cm [Piece 3]).

Figure 9. Sketch of various glass alteration features. A. Simple vein (sketched from Pl. 1, Fig. 3; Sample 168-1027C-1R-6, 67-70 cm [Piece 2]). B. Composite veins (Sample 168-1027C-1R-6, 67-70 cm [Piece 2]). C. Glassy shard from hyaloclasite breccia of Hole 1026B (Sample 168-1026B-3R-1, 18-25 cm [Piece 3]).