Table T1. Major element compositions in basement rocks from Sites U1381 and U1414, Expeditions 334 and 344.
Core, section, interval (cm) |
SiO2 (wt%) |
TiO2 (wt%) |
Al2O3 (wt%) |
TFe2O3 (wt%) |
MnO (wt%) |
MgO (wt%) |
CaO (wt%) |
Na2O (wt%) |
K2O (wt%) |
P2O5 (wt%) |
LOI (wt%) |
---|---|---|---|---|---|---|---|---|---|---|---|
334-U1381A- | |||||||||||
16R-2, 136–139 | 53.49 | 0.99 | 10.32 | 12.50 | 0.06 | 10.19 | 5.55 | 2.81 | 0.40 | 0.13 | 3.57 |
16R-2, 134–137 | 51.43 | 1.97 | 12.80 | 12.00 | 0.11 | 8.24 | 6.63 | 3.18 | 0.29 | 0.21 | 3.11 |
18R-2, 1–4 | 53.22 | 1.66 | 11.52 | 11.73 | 0.10 | 8.20 | 7.30 | 3.10 | 0.23 | 0.15 | 2.79 |
20R-2, 115–118 | 51.35 | 2.16 | 12.10 | 13.61 | 0.12 | 7.89 | 6.70 | 3.27 | 0.30 | 0.21 | 2.28 |
22R-3, 8–13 | 52.31 | 1.69 | 12.88 | 11.21 | 0.12 | 7.11 | 9.87 | 2.95 | 0.16 | 0.14 | 1.55 |
26R-1, 80–83 | 50.40 | 1.38 | 11.28 | 13.38 | 0.09 | 10.96 | 5.69 | 2.93 | 0.41 | 0.17 | 3.31 |
26R-3, 53–56 | 53.04 | 1.39 | 10.20 | 13.44 | 0.09 | 10.31 | 5.64 | 2.88 | 0.40 | 0.16 | 2.44 |
344-U1381C- | |||||||||||
13X-1, 11–16 | 48.97 | 1.65 | 13.13 | 12.15 | 0.12 | 7.49 | 8.33 | 3.06 | 0.17 | 0.21 | 4.72 |
344-U1414A- | |||||||||||
45R-1, 65–71 | 51.78 | 2.21 | 14.68 | 9.54 | 0.09 | 6.29 | 8.22 | 3.49 | 0.35 | 0.22 | 3.14 |
45R-2, 82–92 | 51.48 | 1.95 | 12.64 | 12.09 | 0.18 | 5.62 | 11.45 | 2.63 | 0.23 | 0.19 | 1.53 |
46R-1, 107–110 | 49.69 | 1.91 | 13.26 | 13.63 | 0.20 | 6.30 | 11.34 | 2.51 | 0.16 | 0.19 | 0.81 |
46R-2, 132–138 | 51.69 | 1.21 | 12.24 | 12.31 | 0.17 | 7.28 | 10.12 | 2.57 | 0.16 | 0.12 | 2.14 |
47R-1, 47–53 | 52.50 | 0.98 | 10.74 | 11.84 | 0.09 | 10.59 | 5.50 | 2.54 | 0.61 | 0.09 | 4.52 |
47R-4, 27–34 | 51.11 | 1.26 | 14.35 | 11.06 | 0.14 | 7.07 | 11.25 | 2.31 | 0.23 | 0.13 | 1.10 |
48R-1, 117–122 | 51.74 | 1.34 | 12.31 | 11.26 | 0.13 | 7.02 | 11.36 | 2.34 | 0.20 | 0.13 | 2.16 |
48R-3, 26–36 | 52.98 | 1.14 | 12.47 | 10.44 | 0.13 | 6.34 | 12.69 | 2.24 | 0.18 | 0.11 | 1.27 |
49R-2, 91–98 | 52.36 | 1.72 | 12.12 | 13.06 | 0.16 | 7.37 | 6.81 | 2.94 | 0.35 | 0.20 | 2.92 |
50R-2, 100–109 | 50.97 | 1.73 | 12.84 | 13.16 | 0.10 | 7.62 | 6.88 | 2.89 | 0.34 | 0.19 | 3.27 |
51R-1, 90–101 | 53.69 | 1.63 | 12.19 | 12.58 | 0.12 | 6.50 | 7.65 | 2.89 | 0.35 | 0.20 | 2.22 |
51R-2, 35–44 | 52.32 | 1.65 | 12.84 | 12.75 | 0.12 | 6.93 | 7.62 | 2.76 | 0.31 | 0.18 | 2.53 |
51R-4, 126–134 | 52.34 | 0.85 | 14.63 | 7.87 | 0.10 | 6.67 | 12.60 | 2.17 | 0.19 | 0.08 | 2.50 |
52R-1, 82–90 | 54.02 | 0.94 | 14.68 | 7.92 | 0.11 | 5.86 | 11.41 | 2.43 | 0.25 | 0.10 | 2.27 |
52R-1, 98–105 | 51.07 | 1.84 | 14.37 | 11.72 | 0.19 | 6.44 | 7.02 | 3.38 | 0.37 | 0.21 | 3.40 |
53R-1, 38–46 | 52.22 | 1.55 | 13.69 | 11.60 | 0.14 | 6.70 | 9.19 | 2.71 | 0.26 | 0.17 | 1.78 |
53R-4, 0–6 | 52.08 | 1.52 | 12.42 | 13.42 | 0.18 | 6.25 | 10.46 | 2.49 | 0.28 | 0.17 | 0.73 |
54R-1, 12–23 | 52.86 | 1.47 | 12.35 | 13.13 | 0.17 | 6.13 | 10.31 | 2.46 | 0.26 | 0.16 | 0.69 |
54R-1, 121–130 | 52.01 | 1.47 | 12.97 | 13.13 | 0.17 | 6.52 | 10.30 | 2.47 | 0.26 | 0.16 | 0.54 |
54R-2, 74–84 | 50.83 | 1.42 | 11.82 | 12.63 | 0.17 | 5.96 | 10.15 | 2.42 | 0.25 | 0.16 | 4.19 |
54R-3, 82–92 | 51.98 | 1.47 | 12.14 | 13.35 | 0.18 | 6.32 | 10.68 | 2.46 | 0.26 | 0.16 | 1.00 |
54R-4, 68–72 | 51.83 | 1.52 | 12.57 | 13.35 | 0.18 | 6.38 | 10.49 | 2.49 | 0.27 | 0.17 | 0.76 |
54R-5, 71–75 | 52.19 | 1.51 | 12.57 | 13.07 | 0.19 | 6.10 | 10.74 | 2.54 | 0.32 | 0.17 | 0.61 |
55R-1, 6–15 | 50.63 | 1.27 | 12.35 | 12.50 | 0.14 | 10.07 | 6.12 | 2.66 | 0.38 | 0.14 | 3.73 |
55R-1, 39–44 | 51.07 | 1.29 | 11.35 | 13.09 | 0.12 | 10.04 | 5.64 | 2.66 | 0.41 | 0.14 | 4.18 |
55R-1, 89–98 | 52.78 | 1.28 | 11.79 | 11.71 | 0.14 | 8.82 | 6.75 | 2.63 | 0.30 | 0.15 | 3.65 |
55R-2, 17–26 | 49.66 | 1.16 | 15.88 | 10.24 | 0.12 | 8.64 | 8.98 | 2.48 | 0.14 | 0.13 | 2.56 |
55R-2, 59–69 | 51.73 | 1.24 | 13.05 | 10.29 | 0.14 | 7.17 | 10.51 | 2.54 | 0.15 | 0.14 | 3.06 |
55R-3, 12–19 | 52.07 | 1.11 | 14.17 | 9.68 | 0.13 | 7.57 | 10.34 | 2.32 | 0.20 | 0.11 | 2.30 |
56R-1, 109–115 | 51.18 | 1.15 | 13.92 | 10.09 | 0.11 | 7.83 | 10.32 | 2.34 | 0.23 | 0.12 | 2.73 |
56R-2, 22–28 | 57.38 | 1.29 | 7.49 | 11.35 | 0.13 | 6.12 | 11.35 | 2.59 | 0.29 | 0.15 | 1.87 |
57R-1, 32–37 | 52.04 | 1.41 | 13.19 | 11.52 | 0.14 | 7.82 | 8.95 | 2.49 | 0.26 | 0.13 | 2.03 |
57R-1, 76–81 | 50.07 | 1.40 | 15.25 | 11.27 | 0.15 | 8.23 | 8.68 | 2.57 | 0.28 | 0.14 | 1.97 |
58R-2, 41–44 | 50.66 | 1.64 | 13.05 | 13.53 | 0.15 | 7.51 | 6.47 | 3.16 | 0.34 | 0.20 | 3.30 |
58R-3, 0–6 | 52.14 | 1.55 | 13.27 | 12.46 | 0.17 | 7.11 | 6.84 | 3.00 | 0.38 | 0.19 | 2.88 |
59R-1, 66–72 | 54.39 | 1.39 | 11.34 | 12.48 | 0.16 | 7.99 | 5.81 | 2.94 | 0.28 | 0.26 | 2.96 |
59R-2, 82–87 | 52.50 | 1.39 | 13.38 | 12.03 | 0.14 | 7.53 | 7.51 | 2.67 | 0.31 | 0.15 | 2.40 |
60R-1, 22–28 | 51.68 | 1.29 | 12.81 | 12.03 | 0.13 | 6.95 | 9.73 | 2.57 | 0.24 | 0.18 | 2.39 |
60R-1, 92–100 | 51.98 | 1.45 | 12.86 | 12.55 | 0.14 | 6.61 | 10.00 | 2.61 | 0.25 | 0.18 | 1.38 |
60R-2, 55–65 | 50.33 | 1.31 | 14.05 | 12.39 | 0.12 | 8.09 | 8.97 | 2.44 | 0.16 | 0.16 | 1.97 |
60R-3, 6–13 | 51.62 | 1.36 | 12.34 | 12.78 | 0.14 | 7.58 | 9.08 | 2.66 | 0.27 | 0.14 | 2.03 |
60R-3, 109–117 | 51.94 | 1.38 | 12.58 | 12.64 | 0.15 | 7.33 | 8.70 | 2.60 | 0.34 | 0.17 | 2.17 |
61R-1, 16–23 | 49.86 | 1.87 | 14.93 | 12.63 | 0.24 | 6.22 | 7.62 | 3.39 | 0.32 | 0.19 | 2.72 |
61R-1, 90–97 | 51.38 | 1.49 | 11.97 | 14.15 | 0.17 | 6.81 | 9.12 | 2.52 | 0.17 | 0.14 | 2.08 |
61R-1, 123–129 | 52.96 | 1.53 | 9.54 | 15.18 | 0.17 | 6.39 | 9.27 | 2.60 | 0.18 | 0.15 | 2.04 |
61R-2, 19–27 | 48.47 | 1.34 | 11.05 | 14.04 | 0.15 | 7.24 | 8.34 | 2.35 | 0.17 | 0.12 | 6.73 |
61R-2, 108–115 | 51.28 | 1.52 | 11.42 | 15.00 | 0.17 | 6.93 | 8.93 | 2.49 | 0.20 | 0.14 | 1.93 |
61R-3, 25–33 | 52.19 | 1.47 | 11.14 | 14.72 | 0.17 | 6.89 | 8.71 | 2.49 | 0.22 | 0.14 | 1.86 |
62R-1, 7–14 | 50.08 | 1.46 | 12.02 | 14.61 | 0.15 | 7.22 | 8.32 | 2.43 | 0.18 | 0.14 | 3.39 |
62R-1, 59–65 | 51.59 | 1.34 | 11.78 | 14.09 | 0.14 | 6.45 | 9.32 | 2.39 | 0.22 | 0.14 | 2.53 |
62R-2, 19–34 | 49.82 | 1.69 | 12.45 | 16.29 | 0.18 | 7.13 | 8.05 | 2.48 | 0.24 | 0.17 | 1.51 |
62R-2, 54–61 | 52.36 | 1.33 | 12.39 | 13.61 | 0.15 | 6.16 | 10.04 | 2.41 | 0.20 | 0.12 | 1.24 |
62R-2, 117–125 | 51.41 | 1.45 | 11.35 | 14.64 | 0.16 | 6.65 | 9.52 | 2.37 | 0.11 | 0.12 | 2.23 |
62R-3, 75–82 | 51.11 | 1.40 | 12.02 | 13.95 | 0.17 | 6.65 | 9.56 | 2.34 | 0.19 | 0.13 | 2.48 |
62R-4, 50–57 | 50.51 | 1.37 | 13.66 | 13.65 | 0.16 | 6.80 | 10.20 | 2.35 | 0.20 | 0.12 | 0.98 |
62R-4, 70–78 | 50.41 | 1.36 | 13.72 | 13.54 | 0.16 | 7.26 | 9.61 | 2.36 | 0.20 | 0.12 | 1.27 |
63R-1, 25–34 | 50.52 | 1.37 | 12.56 | 14.09 | 0.16 | 6.96 | 9.49 | 2.34 | 0.20 | 0.12 | 2.18 |
63R-1, 96–104 | 49.40 | 1.34 | 13.26 | 14.10 | 0.16 | 7.52 | 9.26 | 2.31 | 0.21 | 0.13 | 2.31 |
63R-2, 25–33 | 51.17 | 1.33 | 12.35 | 13.87 | 0.15 | 7.21 | 9.17 | 2.37 | 0.21 | 0.13 | 2.05 |
63R-2, 111–118 | 51.67 | 1.41 | 12.29 | 13.82 | 0.13 | 7.28 | 8.42 | 2.47 | 0.21 | 0.13 | 2.17 |
63R-3, 50–57 | 51.25 | 1.36 | 12.85 | 13.64 | 0.15 | 7.23 | 9.03 | 2.36 | 0.21 | 0.13 | 1.78 |
63R-3, 79–88 | 51.16 | 1.41 | 12.79 | 13.91 | 0.14 | 7.60 | 8.54 | 2.40 | 0.20 | 0.13 | 1.72 |
63R-3, 100–110 | 50.95 | 1.41 | 12.46 | 14.07 | 0.15 | 7.43 | 8.88 | 2.39 | 0.19 | 0.13 | 1.95 |
63R-4, 14–27 | 50.77 | 1.36 | 13.13 | 13.60 | 0.16 | 7.05 | 9.32 | 2.35 | 0.21 | 0.13 | 1.91 |
BHVO-2 (measured) | 49.87 | 2.71 | 13.6 | 12.28 | 7.25 | 11.5 | 2.22 | 0.53 | 0.26 | ||
BHVO-2 (recommended) | 49.9 | 2.73 | 13.5 | 12.3 | 7.23 | 11.4 | 2.22 | 0.52 | 0.27 |
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