(Table 4) Geochemistry in feldspars at DSDP Hole 78-543A

Analysis no. 32-33, 34-35, 36-37, and 38-39 are the cores and rims of phenocrysts respectively 2.7 mm, 1.3 mm, 0.2 mm, and 0.08 mm wide. Total iron expressed as Fe2O3 for feldspars, FeO for chlorite and celadonite. Ternary components are computed from structural formulas—Or = K, Ab = Na, An = Ca, normalized to 100%.