Figure F101. Hyaloclastite breccia with 60%–70% altered glass clasts in a cement of quartz, pyrite, saponite, and calcite (interval 309-1256D-90R-1, 5–10 cm). Platy glass shards show a preferred orientation (unoriented piece) (see “Structural geology” in “Expedition 309”).
Previous | Close | Next | Top of page