Figure F82. Close-up photograph of interval 185-801C-27R-3, 5-35 cm. The top end of Piece 5 was sampled for biological studies. Although the majority of Piece 5 is crystalline basalt, the top of it is similar to Pieces 2, 3, and 4. These pieces contain interpillow glass, carbonate, and clay (mottled dark and white areas). These areas contain fresh glass unlike the interpillow material sampled at intervals 185-801C-14R-3, 106-109 cm, and 16R-5, 84-87 cm, in which all of the glass was altered.