Figure F33. East Pacific Rise (EPR) mid-ocean-ridge basalt (MORB) normalized multielement plot of the average of different lithologic subdivisions from Hole 1256D. LP = lava pond, IF = inflated flows, SMF = sheet and massive flows, TZ = transition zone, and SI = sheeted intrusives. The values of Ba, Y, Sr, Zr, and TiO₂ are taken from Su and Langmuir et al. (2003). Other elements are compiled from PETDB (www.petdb.org) for basalts with MgO >6.0 wt%.