Figure F7. A. FeOtot vs. SiO2 plot of myrmekite found in Site 1224 ferrobasalts. B. Cross, Iddings, Pirsson, and Washington (CIPW) normative quartz vs. CIPW [100 x An/(An + Ab + Or)] plot of myrmekite found in Site 1224 ferrobasalts. C. CIPW normative orthoclase vs. CIPW plot of myrmekite found in Site 1224 ferrobasalts. Green circle = Hess Deep silicic melt composition, blue squares = experimental melts derived by low-pressure melting of oceanic cumulate gabbros (Koepke et al., 2004). D. Granitic portion of petrogeny's residua system for myrmekite found in Site 1224 ferrobasalts (solid circles). For comparison are experimental melts obtained by Dixon and Rutherford (1979), EPR dacite glass bleb (grey circle; Natland, 1991), DSDP Site 396 dacite globule from dolerite (white diamond; Sato, 1979), Hess Deep (green circle; Natland and Dick, 1996; Pedersen et al., 1996), ODP Site 735 plagiogranites, and low-pressure experimental melts of oceanic cumulate gabbros (blue field and white squares in the petrogeny's residua system inset; Koepke et al., 2004).

Figure F7. A. FeO_tot vs. SiO₂ plot of myrmekite found in Site 1224 ferrobasalts. B. Cross, Iddings, Pirsson, and Washington (CIPW) normative quartz vs. CIPW [100 x An/(An + Ab + Or)] plot of myrmekite found in Site 1224 ferrobasalts. C. CIPW normative orthoclase vs. CIPW plot of myrmekite found in Site 1224 ferrobasalts. Green circle = Hess Deep silicic melt composition, blue squares = experimental melts derived by low-pressure melting of oceanic cumulate gabbros (Koepke et al., 2004). D. Granitic portion of petrogeny's residua system for myrmekite found in Site 1224 ferrobasalts (solid circles). For comparison are experimental melts obtained by Dixon and Rutherford (1979), EPR dacite glass bleb (grey circle; Natland, 1991), DSDP Site 396 dacite globule from dolerite (white diamond; Sato, 1979), Hess Deep (green circle; Natland and Dick, 1996; Pedersen et al., 1996), ODP Site 735 plagiogranites, and low-pressure experimental melts of oceanic cumulate gabbros (blue field and white squares in the petrogeny's residua system inset; Koepke et al., 2004).