Figure F56. Summary of basement stratigraphy at Site 1256 showing (from left) a depth scale, core numbers, recovered intervals, unit and subunit boundaries, igneous lithology locations of glass and altered glass, groundmass grain size, and phenocryst percentages based on thin section descriptions. cx = cryptocrystalline, µx = microcrystalline, fg = fine grained. ol = olivine, pl = plagioclase, cpx = clinopyroxene. A. Hole 1256C. B. Hole 1256D.