Figure F48. Depiction of the two types of interpillow sediment/lava interface. A. Interpillow sediment/pillow rim contact (interval 185-801C-14R-3 [Piece 10, 117-126 cm]) displaying a prominent chilled pillow margin. B. Flat contact between lava (below) and altered siliceous interpillow sediment (above) (interval 185-801C-17R-3 137-143 cm) suggesting that lava was injected within interpillow sediment horizon. The quality of the image reflects the AMST source.