Appendix 7 Concentration of Major Elements and Loss of Ignition (LOI) (Wt

Appendix 7 Concentration of major elements and loss of ignition (LOI) (wt%) in rocks the Umba formations intersected by Hole 4A.

Sample # / Rock type / Depth, m / SiO2 / Al2O3 / Fe2O3tot / TiO2 / MgO / CaO / Na2O / K2O / MnO / P2O5 / LOI / Sum
Umba Volcanic Formation (Unit D)
3100628 / Magnesian basalt / 5.97 / 45.3 / 12.9 / 11.9 / 1.05 / 10.6 / 9.55 / 2.35 / 0.84 / 0.18 / 0.44 / 4.25 / 99.4
3100632 / Magnesian basalt / 13.18 / 45.9 / 13.4 / 12.0 / 1.03 / 9.29 / 11.7 / 2.05 / 0.25 / 0.17 / 0.42 / 3.00 / 99.2
Umba Sedimentary Formation, igneous rocks
Unit C
3100706 / Alkaline basalt / 102.72 / 42.0 / 14.1 / 15.6 / 2.10 / 7.96 / 9.82 / 2.51 / 0.14 / 0.21 / 0.38 / 4.92 / 100
3100712 / Alkaline basalt / 103.64 / 44.2 / 14.0 / 13.7 / 1.82 / 6.54 / 11.5 / 2.78 / 0.16 / 0.18 / 0.35 / 4.14 / 99.4
3100764 / Alkaline basalt / 137.09 / 41.2 / 13.3 / 13.8 / 1.59 / 7.50 / 8.42 / 2.40 / 0.02 / 0.14 / 0.35 / 9.69 / 98.4
3100824 / Alkaline basalt / 154.08 / 43.4 / 14.2 / 12.7 / 1.63 / 5.83 / 8.08 / 3.90 / 0.60 / 0.14 / 0.37 / 8.57 / 99.4
3100876 / Alkaline basalt / 173.51 / 45.2 / 13.1 / 13.8 / 1.59 / 8.39 / 9.75 / 2.53 / 0.93 / 0.18 / 0.36 / 3.20 / 99.0
Unit A
3100988 / Diabase / 223.89 / 43.3 / 11.8 / 12.3 / 1.98 / 6.76 / 9.46 / 2.38 / 0.02 / 0.18 / 0.25 / 10.6 / 99.0
3100996 / Diabase / 231.33 / 43.7 / 11.1 / 11.8 / 1.82 / 7.07 / 9.27 / 2.01 / 2.42 / 0.18 / 0.24 / 9.48 / 99.1
Umba Sedimentary Formation, sedimentary rocks
Quartzite member
3100636 / Sandstone quartzitic / 22.60 / 94.7 / 0.67 / 3.04 / 0.01 / 0.14 / 0.05 / <0.1 / 0.09 / <0.01 / 0.05 / 0.45 / 99.2
3100646 / Sandstone quartzitic / 32.77 / 86.4 / 0.50 / 11.6 / 0.09 / 0.20 / 0.28 / <0.1 / 0.02 / <0.01 / 0.20 / 0.14 / 99.4
3100652 / Sandstone quartzitic / 40.52 / 94.5 / 0.78 / 3.91 / 0.03 / 0.11 / 0.10 / <0.1 / 0.10 / <0.01 / 0.07 / 0.35 / 100
3100660 / Sandstone quartzitic / 48.65 / 90.9 / 1.32 / 3.76 / 0.05 / 0.54 / 1.12 / <0.1 / 0.02 / <0.01 / 0.85 / 0.74 / 99.3
Shale member
3100666 / Siltstone shale / 57.47 / 74.0 / 12.8 / 3.06 / 0.37 / 1.15 / 0.16 / 1.96 / 3.20 / 0.01 / 0.07 / 2.10 / 98.9
3100672 / Siltstone shale / 62.60 / 69.6 / 14.1 / 3.07 / 0.48 / 1.16 / 0.55 / 2.30 / 3.60 / <0.01 / 0.06 / 2.58 / 97.5
3100678 / Siltstone shale / 69.12 / 68.2 / 13.5 / 5.83 / 0.50 / 1.55 / 1.18 / 1.60 / 3.31 / 0.03 / 0.14 / 3.14 / 99.0
3100688 / Sandstone quartzitic / 80.89 / 76.5 / 7.73 / 6.77 / 0.23 / 1.63 / 1.98 / 1.19 / 1.10 / 0.02 / 1.18 / 2.10 / 100
3100698 / Siltstone / 90.65 / 68.0 / 14.2 / 6.47 / 0.51 / 1.94 / 0.61 / 2.44 / 2.25 / 0.02 / 0.27 / 2.60 / 99.3
3100704 / Marl / 98.82 / 36.7 / 16.5 / 10.3 / 2.10 / 3.46 / 12.3 / 4.08 / 1.26 / 0.17 / 0.44 / 12.1 / 99.4
3100716 / Siltstone / 110.92 / 48.1 / 14.3 / 12.7 / 1.64 / 4.60 / 5.62 / 3.64 / 0.21 / 0.09 / 0.38 / 7.13 / 98.4

Appendix 7 (continued).

Sample # / Rock type / Depth, m / SiO2 / Al2O3 / Fe2O3tot / TiO2 / MgO / CaO / Na2O / K2O / MnO / P2O5 / LOI / Sum
Umba Sedimentary Formation, sedimentary rocks
Dolostone member
3100722 / Limestone sparitic / 118.75 / 3.13 / 0.38 / 4.55 / 0.03 / 15.9 / 32.3 / <0.1 / <0.01 / 0.16 / 0.16 / 42.9 / 100
3100738 / Dolomitic limestone / 127.58 / 4.80 / 0.24 / 1.80 / 0.01 / 16.2 / 33.5 / <0.1 / 0.01 / 0.04 / 0.03 / 42.4 / 99.0
3100758 / Dolomitic limestone / 132.41 / 7.01 / 0.94 / 1.53 / 0.04 / 15.7 / 32.1 / <0.1 / 0.11 / 0.03 / 0.07 / 41.9 / 99.4
3100782 / Dolomitic limestone / 140.28 / 7.33 / 1.36 / 1.51 / 0.05 / 14.3 / 33.3 / 0.12 / 0.30 / 0.05 / 0.09 / 40.8 / 99.2
3100804 / Dolostone microcrystalline / 146.45 / 22.6 / 2.02 / 1.16 / 0.08 / 14.8 / 23.9 / <0.1 / 0.56 / 0.01 / 0.05 / 34.6 / 100
3100840 / Dolomitic limestone / 159.60 / 3.28 / 0.86 / 0.81 / 0.04 / 18.1 / 33.1 / <0.1 / 0.01 / 0.04 / 0.04 / 42.5 / 98.8
3100870 / Limestone sparitic / 166.25 / 21.2 / 1.62 / 2.54 / 0.07 / 10.0 / 34.6 / <0.1 / 0.82 / 0.12 / 0.03 / 28.9 / 100
3100884 / Tuffitic siltstone / 179.09 / 68.1 / 9.23 / 2.21 / 0.27 / 1.18 / 7.24 / 3.94 / 0.60 / 0.07 / 0.07 / 6.61 / 100

Sandstone-Siltstone member

3100898 / Sandstone-siltstone-shale / 185.88 / 68.7 / 14.6 / 4.02 / 0.57 / 1.50 / 0.93 / 2.24 / 3.72 / <0.01 / 0.09 / 2.52 / 98.9
3100906 / Sandstone-siltstone-shale / 191.44 / 63.7 / 15.0 / 5.26 / 0.62 / 1.73 / 2.41 / 2.09 / 3.81 / 0.02 / 0.07 / 4.02 / 98.7
3100918 / Sandstone-siltstone-shale / 195.04 / 67.5 / 14.9 / 5.36 / 0.67 / 1.68 / 0.80 / 1.91 / 3.76 / 0.02 / 0.10 / 2.78 / 99.5
3100928 / Sandstone-siltstone-shale / 201.15 / 68.2 / 14.3 / 5.11 / 0.61 / 1.76 / 0.84 / 1.66 / 3.76 / 0.02 / 0.07 / 3.08 / 99.4
3100940 / Sandstone-siltstone-shale / 206.40 / 66.7 / 15.3 / 4.93 / 0.69 / 2.17 / 0.87 / 1.60 / 4.14 / 0.01 / 0.09 / 3.30 / 100
3100952 / Carbonate sandstone-siltstone / 211.34 / 23.3 / 2.57 / 3.30 / 0.11 / 13.5 / 23.4 / <0.1 / 0.67 / 0.19 / 0.03 / 32.0 / 99.1
3100958 / Carbonate sandstone-siltstone / 212.86 / 48.1 / 11.5 / 3.83 / 0.49 / 6.88 / 12.6 / 0.12 / 2.41 / 0.14 / 0.07 / 13.5 / 100
3100970 / Siltstone-shale / 217.89 / 59.6 / 16.4 / 6.13 / 0.65 / 3.64 / 3.22 / 0.76 / 4.38 / 0.08 / 0.08 / 5.63 / 101
3100984 / Carbonate sandstone-siltstone / 223.32 / 40.1 / 10.7 / 4.97 / 0.42 / 9.22 / 15.7 / 1.98 / 0.03 / 0.21 / 0.05 / 16.3 / 100

Appendix 8 Total sulphur (TS), total carbon (TC) and total organic carbon (TOC) content (wt%) and concentration of trace elements (ppm) in rocks the Umba formations intersected by Hole 4A.

Sample # / Rock type / Depth, m / TS / TC / TOC / Ba / Co / Cr / Cu / Mo / Ni / Pb / Rb / Sr / Th / U / V / Zn / Zr
Umba Volcanic Formation (Unit D)
3100628 / Magnesian basalt / 5.97 / < 0.01 / 0.32 / < 0.1 / 701 / 64 / 673 / 33 / 1.9 / 321 / 5.3 / 27 / 473 / <4 / <2 / 190 / 92 / 55
3100632 / Magnesian basalt / 13.18 / < 0.01 / < 0.07 / < 0.1 / 328 / 58 / 605 / 36 / 1.6 / 315 / <3 / 13 / 1650 / <4 / 3.7 / 211 / 76 / 63

Appendix 8 (continued).

Sample # / Rock type / Depth, m / TS / TC / TOC / Ba / Co / Cr / Cu / Mo / Ni / Pb / Rb / Sr / Th / U / V / Zn / Zr
Umba Sedimentary Formation, igneous rocks

Unit C

3100706 / Alkaline basalt / 102.72 / 0.02 / 0.48 / < 0.1 / 122 / 70 / 87 / 255 / 2.8 / 117 / <3 / 5.5 / 792 / 5.6 / <2 / 230 / 133 / 148
3100712 / Alkaline basalt / 103.64 / 0.03 / 0.54 / < 0.1 / 128 / 60 / 71 / 240 / 1.9 / 96 / <3 / 8.0 / 1330 / 5.9 / 3.3 / 219 / 99 / 129
3100764 / Alkaline basalt / 137.09 / 0.70 / 1.70 / < 0.1 / 66 / 55 / 22 / 204 / 2.2 / 102 / 6.4 / 1.7 / 243 / 4.8 / <2 / 208 / 104 / 112
3100824 / Alkaline basalt / 154.08 / < 0.01 / 1.48 / < 0.1 / 800 / 55 / 23 / 209 / 1.2 / 72 / 5.5 / 26 / 271 / <4 / <2 / 227 / 106 / 112
3100876 / Alkaline basalt / 173.51 / < 0.01 / 0.19 / < 0.1 / 855 / 69 / 62 / 179 / 1.7 / 165 / <3 / 35 / 810 / 4.3 / <2 / 192 / 108 / 105

Unit A

3100988 / Diabase / 223.89 / < 0.01 / 2.03 / < 0.1 / 73 / 44 / 462 / 129 / 2.0 / 143 / 6.5 / 1.1 / 199 / <4 / <2 / 236 / 93 / 122
3100996 / Diabase / 231.33 / < 0.01 / 1.98 / < 0.1 / 1170 / 51 / 649 / 114 / 1.7 / 181 / 6.7 / 107 / 277 / <4 / <2 / 216 / 85 / 117

Umba Sedimentary Formation, sedimentary rocks

Shale member

3100666 / Siltstone shale / 57.47 / 0.07 / 0.12 / < 0.1 / 1170 / 4.3 / 61 / 3.3 / <1 / 15 / 21 / 102 / 55 / 5.7 / <2 / 39 / 33 / 286
3100672 / Siltstone shale / 62.60 / 0.07 / 0.31 / 0.17 / 788 / 6.0 / 89 / 3.8 / <1 / 15 / 24 / 113 / 68 / 8.2 / <2 / 49 / 48 / 311
3100678 / Siltstone shale / 69.12 / 0.10 / 0.36 / 0.15 / 567 / 11 / 90 / 5.6 / <1 / 29 / 22 / 115 / 60 / 7.1 / <2 / 59 / 50 / 189
3100688 / Sandstone quartzitic / 80.89 / 0.07 / 0.13 / < 0.1 / 759 / 8.3 / 86 / 5.7 / <1 / 11 / 14 / 36 / 77 / <4 / <2 / 23 / 23 / 89
3100698 / Siltstone / 90.65 / 0.22 / 0.13 / < 0.1 / 644 / 8.9 / 120 / 9.4 / <1 / 31 / 23 / 81 / 48 / 6.7 / <2 / 44 / 79 / 230
3100704 / Marl / 98.82 / < 0.01 / 2.71 / < 0.1 / 2090 / 32 / 38 / 259 / 1.1 / 57 / <3 / 48 / 471 / 5.3 / <2 / 264 / 121 / 151
3100716 / Siltstone / 110.92 / 0.14 / 1.23 / < 0.1 / 140 / 31 / 32 / 210 / 2.1 / 57 / 12 / 7.1 / 132 / <4 / <2 / 188 / 119 / 115

Dolostone member

3100722 / Limestone sparitic / 118.75 / 0.29 / 12.3 / < 0.1 / 68 / 5.3 / 5.7 / <2 / 1.1 / <2 / 6.4 / 1.3 / 244 / <4 / <2 / <5 / 18 / 4.4
3100738 / Dolomitic limestone / 127.58 / < 0.01 / 12.2 / < 0.1 / 61 / <4 / <4 / <2 / 1.0 / <2 / 11 / 2.3 / 344 / <4 / <2 / <5 / 14 / 3.9
3100758 / Dolomitic limestone / 132.41 / 0.07 / 11.6 / < 0.1 / 3310 / <4 / 7.7 / <2 / 1.4 / 2.9 / 6.2 / 4.4 / 370 / <4 / <2 / <5 / 11 / 26
3100782 / Dolomitic limestone / 140.28 / < 0.01 / 11.5 / < 0.1 / 335 / <4 / 8.5 / <2 / 1.1 / 4.6 / 5.4 / 9.8 / 533 / <4 / <2 / <5 / 16 / 6.5
3100804 / Dolostone microcrystalline / 146.45 / < 0.01 / 9.41 / < 0.1 / 799 / <4 / 14 / <2 / <1 / 4.8 / 6.4 / 20 / 456 / <4 / <2 / 5.3 / 20 / 14
3100840 / Dolomitic limestone / 159.60 / < 0.01 / 11.9 / < 0.1 / 451 / 4.9 / <4 / <2 / <1 / <2 / 10 / 1.5 / 246 / <4 / <2 / <5 / 8.3 / 5.8
3100870 / Limestone sparitic / 166.25 / < 0.01 / 7.35 / < 0.1 / 123 / 6.1 / 8.3 / <2 / 1.8 / 5.9 / <3 / 41 / 722 / <4 / <2 / 6.3 / 31 / 14
3100884 / Tuffitic siltstone / 179.09 / < 0.01 / 1.61 / < 0.1 / 196 / 4.1 / 29 / 3.1 / <1 / 9.0 / 13 / 17 / 264 / <4 / <2 / 18 / 17 / 143

Sandstone-Siltstone member

3100898 / Sandstone-siltstone-shale / 185.88 / 0.16 / 0.16 / < 0.1 / 653 / 10 / 59 / 4.7 / <1 / 11 / 26 / 104 / 55 / 8.0 / <2 / 41 / 42 / 267
3100906 / Sandstone-siltstone-shale / 191.44 / 0.18 / 0.69 / 0.11 / 600 / 13 / 77 / 7.8 / <1 / 21 / 24 / 106 / 99 / 8.0 / <2 / 49 / 51 / 203

Appendix 8 (continued).

Sample # / Rock type / Depth, m / TS / TC / TOC / Ba / Co / Cr / Cu / Mo / Ni / Pb / Rb / Sr / Th / U / V / Zn / Zr

Sandstone-Siltstone member

3100918 / Sandstone-siltstone-shale / 195.04 / 0.08 / 0.34 / 0.15 / 583 / 11 / 85 / 3.1 / <1 / 14 / 18 / 104 / 41 / 7.8 / <2 / 54 / 40 / 208
3100928 / Sandstone-siltstone-shale / 201.15 / 0.17 / 0.48 / 0.21 / 617 / 12 / 70 / 7.2 / <1 / 16 / 22 / 102 / 45 / 7.8 / <2 / 47 / 56 / 221
3100940 / Sandstone-siltstone-shale / 206.40 / 0.24 / 0.52 / 0.17 / 786 / 11 / 71 / 12 / <1 / 18 / 21 / 113 / 42 / 9.4 / <2 / 48 / 55 / 264
3100952 / Carbonate sandstone-siltstone / 211.34 / < 0.01 / 9.27 / < 0.1 / 136 / 6.9 / 12 / <2 / <1 / 6.0 / 18 / 18 / 509 / <4 / <2 / 8.2 / 26 / 20
3100958 / Carbonate sandstone-siltstone / 212.86 / < 0.01 / 2.76 / < 0.1 / 827 / 17 / 50 / 5.2 / 1.2 / 33 / 12 / 61 / 285 / 7.0 / <2 / 34 / 52 / 77
3100970 / Siltstone-shale / 217.89 / 0.02 / 0.73 / < 0.1 / 2210 / 18 / 87 / 2.6 / <1 / 43 / 14 / 109 / 76 / 9.8 / <2 / 52 / 59 / 92
3100984 / Carbonate sandstone-siltstone / 223.32 / < 0.01 / 3.50 / < 0.1 / 28 / 22 / 64 / 6.1 / <1 / 34 / 17 / 2.0 / 320 / 6.3 / <2 / 34 / 67 / 67

Appendix 9 Acid-soluble trace element concentrations (µg g-1) in carbonate rocks the Umba formations intersected by Hole 4A.

Sample # / Rock type / Depth, m / Fe / Mg / Ca / Mn / P / Zn / Pb / Ba / Sr
Umba Sedimentary Formation

Shale member

3100722 / Limestone sparitic / 118.75 / 23300 / 92700 / 210000 / 1050 / 684 / 23 / <2 / 48 / 296

Dolostone member

3100738 / Dolomitic limestone / 127.58 / 10700 / 96400 / 213000 / 290 / 173 / 24 / 2.1 / 27 / 412
3100758 / Dolomitic limestone / 132.41 / 7580 / 90400 / 208000 / 188 / 296 / 19 / <2 / 1250 / 436
3100782 / Dolomitic limestone / 140.28 / 9030 / 84700 / 218000 / 337 / 396 / 24 / <2 / 33 / 638
3100804 / Dolostone microcrystalline / 146.45 / 6940 / 86900 / 159000 / 88 / 228 / 25 / <2 / 26 / 537
3100840 / Dolomitic limestone / 159.60 / 4130 / 100000 / 216000 / 255 / 187 / 13 / <2 / 467 / 293
3100870 / Limestone sparitic / 166.25 / 3300 / 6150 / 232000 / 777 / 178 / 14 / 5.8 / 54 / 850
Sandstone-Siltstone member
3100952 / Carbonate sandstone-siltstone / 211.34 / 17700 / 74300 / 153000 / 1300 / 176 / 23 / 14 / 6.2 / 590
3100984 / Carbonate sandstone-siltstone / 223.32 / 2100 / 2810 / 107000 / 1220 / 225 / 12 / 11 / 9.4 / 360