Table T2. Major and trace element XRF analysis of Site 1224 basalts.
Core, section, interval (cm)
Depth
(mbsf)
Major element by XRF (wt%)
Trace element by XRF (ppm)
SiO2
TiO2
Al2O3
Fe2O3
MnO
MgO
CaO
Na2O
K2O
P2O5
Total
H2O(–)
LOI
CO
CR
Ba
Nb
Ni
Pb
Rb
Sr
Th
Y
Zr
200-1224A-
5X-1, 14–22 30.84 50.35 2.74 13.07 14.65 0.21 6.23 10.67 2.75 0.22 0.25 101.14 0.94 –0.28 51 103 30.9 3.3 37.5 ND 2.8 119.1 0.3 47.2 176.2
6N-1, 7–11 32.07 49.61 2.70 12.75 15.11 0.20 6.31 10.46 2.72 0.17 0.25 100.28 1.01 –0.32 46 96 24.9 3.2 36.6 1.2 1.6 117.1 0.6 46.3 174.1
200-1224D-
1R-1, 51–57 26.01 50.03 2.70 12.97 14.80 0.19 6.41 10.52 2.75 0.13 0.25 100.73 1.09 –0.28 48 95 25.2 3.4 36.1 0.8 0.3 118.9 1.3 46.0 173.6
1R-2, 80–85 27.74 50.49 2.70 12.95 14.93 0.21 6.22 10.66 2.70 0.31 0.25 101.41 0.90 –0.10 48 91 22.4 3.3 35.2 0.4 4.2 116.7 0.9 46.5 174.0
1R-3, 16–23 28.26 50.42 2.73 13.16 14.47 0.18 6.14 10.35 2.85 0.18 0.25 100.73 1.13 –0.16 44 89 21.9 3.4 38.4 0.0 0.5 121.8 1.0 46.7 175.7
1R-3, 44–49 28.54 49.64 2.66 12.79 15.21 0.20 6.49 10.44 2.75 0.13 0.24 100.57 1.01 –0.34 50 87 23.1 3.1 37.1 ND 0.6 117.1 0.5 45.5 171.8
1R-4, 6–10 29.05 49.83 2.72 12.97 14.29 0.20 6.11 10.69 2.80 0.17 0.25 100.01 1.01 –0.03 48 90 25.4 3.4 37.5 0.3 0.5 122.6 0.1 47.5 175.5
2R-1, 19–25 35.29 49.46 2.72 12.98 14.70 0.19 6.33 10.07 2.91 0.15 0.25 99.77 1.36 –0.22 49 92 24.9 3.2 38.5 0.3 0.6 123.0 0.9 47.3 176.5
2R-2, 15–20 36.44 49.97 2.76 13.00 14.38 0.17 6.38 10.14 2.95 0.12 0.25 100.11 1.06 –0.20 49 92 23.2 3.2 36.1 ND ND 121.6 0.9 46.4 177.7
2R-2, 114–120 37.53 50.33 2.73 13.01 14.40 0.16 6.33 10.02 2.87 0.19 0.24 100.28 1.09 –0.10 46 97 24.5 3.2 37.5 ND 0.5 118.1 0.4 44.3 173.6
2R-3, 70–76 38.41 50.13 2.73 13.07 14.31 0.17 6.31 10.34 2.84 0.19 0.25 100.32 1.05 –0.18 47 97 25.4 3.2 35.9 ND 0.7 120.8 0.5 46.0 177.5
2R-4, 73–79 39.76 49.67 2.67 12.84 14.84 0.18 6.47 10.32 2.81 0.14 0.24 100.21 1.09 –0.24 49 91 25.2 3.2 35.7 ND 0.5 120.4 0.4 47.6 177.5
3R-1, 52–54 45.22 49.93 2.69 12.87 14.80 0.19 6.37 10.38 2.81 0.16 0.25 100.44 1.11 –0.27 48 98 22.5 3.4 34.2 0.1 0.1 120.6 0.9 47.8 178.9
3R-2, 57–62 46.24 49.49 2.68 12.64 15.29 0.20 6.65 10.35 2.71 0.12 0.24 100.38 0.99 –0.28 43 95 24.7 3.1 35.6 0.4 0.2 117.0 0.7 47.5 172.9
3R-2, 126–132 46.96 49.71 2.89 12.82 15.97 0.15 5.43 9.55 2.82 0.75 0.25 100.34 1.35 0.44 46 81 29.9 3.1 37.9 ND 16.5 116.3 0.4 47.6 169.0
3R-3, 41–50 47.55 49.81 2.44 14.35 12.77 0.16 5.27 12.06 3.03 0.40 0.25 100.54 0.37 0.52 46 128 24.4 2.8 46.0 ND 7.1 131.2 0.8 42.1 151.5
4R-1, 12–19 49.42 50.14 2.36 13.64 13.00 0.15 6.95 10.65 2.93 0.14 0.21 100.17 1.32 –0.01 49 120 12.8 2.7 43.3 ND 0.3 126.6 0.9 37.9 148.9
4R-1, 69–74 49.99 50.29 2.29 13.38 13.38 0.16 7.08 10.67 2.73 0.25 0.20 100.44 1.21 –0.08 44 121 21.5 2.7 42.3 0.2 2.8 121.8 0.4 38.5 142.6
4R-2, 28–34 50.90 50.36 2.29 13.50 13.10 0.17 6.89 11.05 2.71 0.14 0.20 100.40 0.94 –0.11 46 128 19.7 2.8 42.5 ND 0.7 125.1 0.6 39.2 143.3
5R-1, 61–70 51.91 49.84 2.36 13.75 12.87 0.17 6.87 11.12 2.75 0.13 0.21 100.06 1.13 0.11 47 124 20.0 2.7 43.9 ND 0.4 127.2 0.6 39.2 148.1
200-1224E-
3R-2, 51–53 28.90 49.67 2.67 12.90 14.45 0.17 6.31 10.19 2.77 0.14 0.24 99.50 1.10 –0.12 48 93 22.0 3.1 37.8 ND ND 121.2 0.5 45.6 175.0
200-1224F-
1R-2, 133–136 30.47 49.83 2.70 12.89 14.62 0.21 6.16 10.59 2.79 0.18 0.24 100.23 1.01 0.01 49 89 22.9 3.3 37.0 0.5 0.8 121.5 0.4 48.7 174.8
1R-4, 46–49 32.55 49.88 2.74 13.10 14.34 0.17 6.41 10.23 2.83 0.17 0.25 100.13 0.99 –0.11 47 89 25.0 3.2 37.3 ND 0.9 122.7 0.4 46.4 177.5
1R-4, 61–62 32.70 50.47 2.80 13.25 14.16 0.17 6.12 10.30 2.99 0.45 0.25 100.96 1.02 0.65 48 90 39.9 3.3 33.9 ND 12.2 132.1 0.8 46.2 176.3
1R-4, 118–120 33.27 50.05 2.68 12.94 14.76 0.18 6.50 10.02 2.77 0.20 0.24 100.33 1.17 –0.07 49 91 16.2 3.2 35.7 0.1 0.9 117.0 0.8 45.8 171.3
1R-5, 57–59 34.09 51.47 2.79 13.28 12.74 0.17 6.11 10.22 2.92 0.55 0.25 100.49 1.03 0.71 60 93 50.7 3.4 43.5 ND 51.4 139.2 0.7 47.8 177.9
2R-1, 14–17 39.84 51.32 2.77 13.26 12.75 0.16 6.37 10.22 2.93 0.33 0.25 100.36 1.24 0.63 53 92 36.1 3.2 36.0 0.1 18.3 136.2 0.1 45.9 176.9
2R-1, 91–93 40.81 51.73 2.81 13.78 11.80 0.15 6.17 10.60 2.99 0.34 0.25 100.63 1.29 0.62 88 97 45.8 3.3 158.2 0.5 6.8 143.1 0.5 46.6 177.8
2R-3, 10–12 42.72 50.59 2.62 13.05 14.35 0.20 6.29 10.51 2.68 0.37 0.25 100.91 0.72 –0.23 50 94 26.3 3.4 37.2 ND 5.7 119.7 0.8 48.6 181.8
2R-4, 138–140 45.14 49.56 2.76 13.07 14.61 0.17 6.47 10.24 2.82 0.14 0.25 100.10 0.86 –0.21 50 84 18.3 3.2 36.2 ND 0.3 121.9 0.8 47.0 180.9
3R-1, 10–13 47.40 50.29 2.73 12.87 15.17 0.18 6.42 10.16 2.79 0.16 0.25 101.01 0.78 –0.34 46 93 23.3 3.1 34.7 ND 0.2 117.9 0.4 48.1 175.0
3R-1, 90–95 48.20 50.53 3.01 13.62 14.02 0.14 6.27 9.85 3.00 0.17 0.26 100.88 1.20 –0.04 56 82 23.2 3.5 52.4 0.0 0.2 125.5 0.7 48.8 183.8
3R-3, 90–93 50.93 50.74 2.47 14.29 11.89 0.16 6.65 11.34 2.84 0.43 0.21 101.03 0.90 0.23 55 128 25.0 3.0 44.5 ND 14.4 131.3 0.3 41.7 152.3
4R-1, 75–77 57.15 50.63 2.31 13.40 13.77 0.20 6.73 11.35 2.56 0.26 0.20 101.38 0.62 –0.20 44 121 19.8 2.8 42.9 0.1 3.6 117.7 0.4 38.9 142.0
4R-2, 84–86 58.14 50.29 2.34 13.39 13.84 0.20 6.50 11.41 2.52 0.24 0.21 100.93 0.59 –0.12 46 123 19.9 2.9 43.0 ND 3.1 119.2 0.5 40.4 147.4
4R-3, 1–3 58.81 49.44 2.28 13.32 13.14 0.17 6.80 11.02 2.72 0.16 0.20 99.24 0.76 –0.11 52 129 15.8 2.8 41.4 ND 1.6 124.1 0.6 38.4 144.2
4R-3, 134–136 60.14 49.92 2.30 13.40 13.22 0.17 6.72 11.03 2.67 0.14 0.20 99.77 0.64 –0.16 46 125 20.8 2.7 41.8 3.7 0.5 121.8 0.8 39.9 143.4
4R-5, 120–122 62.21 50.52 2.34 13.71 12.95 0.16 6.80 11.01 2.76 0.16 0.20 100.61 0.66 –0.19 45 126 22.9 2.8 43.2 0.4 0.6 123.9 0.6 39.4 146.0
4R-6, 24–27 62.72 50.51 2.09 14.05 12.57 0.18 6.63 11.63 2.57 0.35 0.19 100.78 0.91 0.06 45 149 15.5 2.4 44.3 1.0 5.8 118.7 0.9 38.4 133.3
5R-1, 93–96 66.83 51.40 2.12 14.29 10.36 0.17 6.92 11.91 2.65 0.32 0.18 100.33 0.66 –0.03 41 147 51.3 2.2 46.8 0.3 4.9 149.2 0.3 41.3 138.3
6R-1, 97–99 75.97 50.68 2.02 13.68 13.00 0.19 6.56 11.50 2.51 0.52 0.18 100.83 0.86 0.33 43 144 35.2 2.0 33.6 ND 14.1 127.7 0.5 37.3 128.3
7R-1, 97–99 85.47 50.90 2.06 13.76 12.38 0.18 6.70 11.37 2.63 0.30 0.18 100.48 0.58 –0.14 43 143 137.1 2.2 42.4 ND 3.7 140.6 0.6 39.1 133.3
8R-1, 108–111 94.68 50.59 2.09 13.82 12.04 0.18 6.84 11.59 2.61 0.31 0.19 100.25 0.63 –0.09 47 150 34.0 2.1 40.3 ND 5.9 131.0 0.1 40.1 134.0
9R-1, 46–49 103.16 50.40 2.07 13.88 12.30 0.18 6.87 11.54 2.63 0.38 0.19 100.43 0.83 0.10 46 140 30.5 2.1 40.1 ND 8.7 129.7 0.1 38.0 132.5
10R-1, 125–129 113.05 52.12 2.29 14.50 9.96 0.17 6.42 11.92 2.82 0.37 0.19 100.77 0.93 0.19 52 88 59.5 2.5 53.6 0.1 5.6 167.5 0.0 43.6 148.9
11R-1, 119–122 122.29 50.49 2.21 14.18 11.48 0.18 6.35 11.69 2.68 0.44 0.19 99.90 1.23 0.43 77 98 27.3 2.4 45.4 ND 9.4 135.8 0.2 40.4 141.7
12R-1, 46–48 128.96 52.55 2.26 14.45 9.12 0.17 6.48 11.96 2.87 0.35 0.20 100.40 0.55 0.11 70 99 61.3 2.6 46.0 ND 2.9 167.6 0.7 45.9 147.5
13R-1, 22–24 133.74 50.89 3.49 12.57 15.83 0.19 4.72 9.91 2.86 0.20 0.31 100.97 1.27 0.21 39 59 25.4 4.0 22.1 ND 1.5 122.5 0.4 55.9 222.2
14R-1, 114–116 144.34 50.03 3.33 12.65 15.25 0.17 5.96 9.54 2.96 0.48 0.30 100.66 1.29 0.47 46 67 23.7 3.8 34.0 ND 18.6 122.4 0.4 53.8 213.6
14R-2, 66–72 145.26 49.46 3.20 12.22 16.85 0.20 5.97 9.59 2.82 0.21 0.29 100.80 0.96 –0.28 50 56 20.9 3.6 27.1 0.0 1.1 115.9 0.0 54.7 203.9
15R-1, 95–97 153.35 50.10 3.25 12.47 16.76 0.20 5.81 9.85 2.75 0.18 0.29 101.66 0.92 –0.29 52 68 19.3 3.7 29.6 ND 0.7 115.8 0.5 53.4 202.7

Notes: Accuracy is calculated based on analysis of standard sample, mainly igneous rock standard samples of Geological Survey of Japan, as linear fit note accuracy. Accuracies of XRF analysis: SiO2 = 0.27%, TiO2 = 0.017%, Al2O3 = 0.23%, Fe2O3 = 0.11%, MnO = 0.0047%, MgO = 0.11%, CaO = 0.098%, Na2O = 0.19%, K2O = 0.038%, P2O5 = 0.0042%, Co = 2.7%, Cr = 18.0%, Ba = 4.1%, Nb = 14.3%, Ni = 9.3%, Pb = 17.6%, Rb = 18.2%, Sr = 1.9%, Th = 29.0%, Y = 2.4%, and Zr = 1.8%.