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 73 524 26 6 61.0 63.0 256.50 264.62 Dietrich,V. 73 21 XRF WET SEDIMENTARY VOLCANIC SANDSTONE 51.13 13.91 4.25 0.75 1.70 9.43 2.97 3.52 0.95 0.25 0.19 2.79 7.47 0.0180 99.31 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS INITIAL REPORTSTOTAL DOES NOT INCLUDE S 73 524 28 3 64.0 69.0 275.50 279.17 Dietrich,V. 73 21 XRF WET IGNEOUS APHYRIC BASALT 46.83 14.95 7.60 4.65 2.92 6.40 2.88 3.71 4.31 0.20 2.07 1.88 0.29 0.0329 98.69 0.329 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTS TOTAL DOES NOT INCLUDE S, UPPER PILLOW 73 524 28 3 93.0 97.0 275.50 279.45 Dietrich,V. 73 21 XRF WET IGNEOUS APHYRIC BASALT 44.72 14.63 5.70 7.50 4.02 8.47 2.90 2.29 4.24 0.24 1.98 1.71 0.22 0.3601 98.62 0.379 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, UPPER PILLOWS 73 524 28 3 105.0 109.0 275.50 279.57 Dietrich,V. 73 21 XRF WET IGNEOUS APHYRIC BASALT 44.38 14.57 7.03 5.60 3.96 8.91 2.69 2.32 4.21 0.26 1.97 2.20 0.31 0.3606 98.41 0.388 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, UPPER PILLOWS 73 524 28 4 108.0 110.0 275.50 281.09 Dietrich,V. 73 21 XRF WET SEDIMENTARY VOLCANIC CLAYSTONE 51.83 15.40 4.66 2.80 3.19 4.28 2.53 5.41 1.89 0.11 0.45 4.29 2.09 98.93 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS INITIAL REPORTSTOTAL DOES NOT INCLUDE S 73 524 30 1 123.0 128.0 289.00 290.26 Dietrich,V. 73 21 2B XRF WET MODERATELY ALTERED IGNEOUS APHYRIC BASALT 48.55 14.35 4.63 7.05 4.75 6.07 3.38 2.93 3.52 0.21 1.12 2.43 0.09 0.0044 99.08 0.449 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, UPPER SILL 73 524 30 2 72.0 76.0 289.00 291.24 Dietrich,V. 73 21 1J XRF WET MODERATELY ALTERED IGNEOUS APHYRIC BASALT 48.28 14.17 5.39 6.70 5.14 5.29 3.29 3.92 3.50 0.27 1.10 1.91 0.19 0.1477 99.15 0.459 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, UPPER SILL 73 524 31 1 80.0 84.0 294.50 295.32 Dietrich,V. 73 21 8A XRF WET MODERATELY ALTERED IGNEOUS APHYRIC BASALT 48.14 14.21 5.64 6.40 4.99 6.09 3.25 2.91 3.56 0.26 1.12 1.84 0.22 0.0465 98.63 0.454 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, UPPER SILL 73 524 31 2 3.0 7.0 294.50 296.05 Dietrich,V. 73 21 1 XRF WET MODERATELY ALTERED IGNEOUS APHYRIC BASALT 47.55 14.18 5.51 6.70 5.03 6.10 3.27 2.67 3.62 0.25 1.14 2.53 0.14 0.0089 98.69 0.453 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, UPPER SILL 73 524 32 2 35.0 38.0 303.50 305.37 Dietrich,V. 73 21 XRF WET SEDIMENTARY VOLCANIC SANDSTONE 44.13 13.42 3.13 2.35 2.95 11.60 3.46 2.67 1.17 0.17 0.32 6.64 7.07 99.08 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS INITIAL REPORTS 73 524 32 2 40.0 44.0 303.50 305.42 Dietrich,V. 73 21 XRF WET IGNEOUS APHYRIC BASALT 48.16 14.95 5.52 5.95 6.47 11.62 2.71 0.15 1.90 0.25 0.18 1.25 0.12 0.2667 99.23 0.531 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, UPPER PART OF LOWER SILL 73 524 32 2 124.0 130.0 303.50 306.27 Dietrich,V. 73 21 XRF WET IGNEOUS APHYRIC BASALT 46.70 14.94 5.90 5.35 6.09 11.75 3.11 0.23 1.92 0.35 0.20 1.14 1.32 0.0385 99.00 0.520 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, UPPER PART OF LOWER SILL 73 524 32 2 127.0 133.0 303.50 306.30 Dietrich,V. 73 21 XRF WET IGNEOUS APHYRIC BASALT 47.12 14.84 4.84 6.15 6.17 11.84 3.05 0.19 1.90 0.34 0.19 1.27 1.03 0.0333 98.93 0.526 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, UPPER PART OF LOWER SILL 73 524 33 1 34.0 38.0 327.50 327.86 Dietrich,V. 73 21 1C XRF WET MODERATELY ALTERED IGNEOUS APHYRIC BASALT 47.89 14.74 5.23 6.30 6.74 11.63 2.68 0.15 1.87 0.24 0.18 1.32 0.15 0.1932 99.12 0.540 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, UPPER PART OF LOWER SILL 73 524 33 1 144.0 155.0 327.50 329.00 Dietrich,V. 73 21 1E XRF WET MODERATELY ALTERED IGNEOUS APHYRIC BASALT 47.37 14.60 5.53 6.00 7.27 10.67 2.60 0.24 1.91 0.23 0.17 2.36 0.33 0.0810 99.28 0.559 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, CENTRAL PART OF LOWER SILL 73 524 33 2 64.0 70.0 327.50 329.67 Dietrich,V. 73 21 1C XRF WET MODERATELY ALTERED IGNEOUS APHYRIC BASALT 47.84 14.82 5.37 6.35 7.57 10.24 2.73 0.24 1.83 0.21 0.18 1.94 0.08 0.1022 99.45 0.565 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, CENTRAL PART OF LOWER SILL 73 524 33 3 135.0 140.0 327.50 331.88 Dietrich,V. 73 21 1G XRF WET MODERATELY ALTERED IGNEOUS APHYRIC BASALT 48.03 14.68 5.17 6.30 7.22 11.41 2.81 0.14 1.85 0.22 0.17 1.38 0.18 0.1156 99.56 0.559 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, CENTRAL PART OF LOWER SILL 73 524 33 4 25.0 29.0 327.50 332.27 Dietrich,V. 73 21 1 XRF WET MODERATELY ALTERED IGNEOUS APHYRIC BASALT 47.44 14.60 4.85 6.70 7.07 11.30 2.62 0.13 1.82 0.22 0.18 2.11 0.21 0.1501 99.25 0.551 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, LOWER PART OF LOWER SILL 73 524 34 1 74.0 79.0 332.50 333.27 Dietrich,V. 73 21 1D XRF WET MODERATELY ALTERED IGNEOUS APHYRIC BASALT 47.89 14.58 5.00 6.55 7.23 11.31 2.51 0.16 1.83 0.23 0.17 1.51 0.25 0.1351 99.22 0.556 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS Magnesium number is atomic ration Mg/(Mg+Fe++).Analyst either measured or calculated Fe++. INITIAL REPORTSTOTAL DOES NOT INCLUDE S, LOWER PART OF LOWER SILL 73 524 35 1 102.0 104.0 339.50 340.53 Dietrich,V. 73 21 XRF WET SEDIMENTARY VOLCANIC SANDSTONE 44.19 13.98 6.88 1.80 4.92 7.60 4.95 0.92 2.09 0.27 0.43 4.76 6.33 0.0535 99.12 Total water not directly determined. H2O not partitioned. Essential oxides quoted to .01%. INITIAL REPORTS INITIAL REPORTSTOTAL DOES NOT INCLUDE S