leg site hole core section top interval depth(cm) bottom interval depth(cm) top of core depth(m) sample midpoint depth(m) analyst volume chapters piece number analytical methods alteration rock type rock name SiO2 Al2O3 Fe2O3 FeO(total) Fe2O3(total) FeO MgO CaO Na2O K2O TiO2 MnO P2O5 LOI H20+ H2O- CO2 SO3 S total magnesium number analytical info. data source comments 81 552 22 1 20.0 24.0 284.00 284.22 Joron,J.L. 81 31 3 XRF EXTENSIVELY ALTERED IGNEOUS PHYRIC BASALT 47.33 11.73 18.50 9.00 4.14 2.53 0.15 3.63 0.12 0.30 2.16 99.59 Analyses in table are on a volatile-free basis. Total water not directly determined. H2O not partitioned. H2O loss on ignition. Essential oxides quoted to .01%. INITIAL REPORTS INITIAL REPORTS 81 552 22 2 66.0 68.0 284.00 286.17 Richardson,C. 81 32 5A ATOMIC ABSORPTION WET IGNEOUS PHYRIC BASALT 46.9 11.8 18.9 7.58 10.19 7.89 5.53 2.64 0.09 3.30 0.13 0.30 2.90 99.25 0.45 Total water not directly determined. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe), where Fe is total iron. INITIAL REPORTS