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Table T3. Glass and whole-rock major and trace element compositions of basalts, Hole 1156A.


Hole 1156A
Core, section: 2R-1 2R-1 2R-1 2R-1 2R-3 2R-3 2R-3 2R-3 2R-3 2R-3 2R-3 3R-1 3R-1 3R-1 3R-2 3R-2 3R-2 3R-2
Interval (cm): 8-12 8-12 8-12 8-12 129-133 129-133 129-133 129-133 133-138 133-138 133-138 102-109 102-109 102-109 73-77 73-77 73-77 73-77
Depth (mbsf): 118.28 118.28 118.28 118.28 122.35 122.35 122.35 122.35 122.39 122.39 122.39 125.62 125.62 125.62 126.83 126.83 126.83 126.83
Piece: 2 2 2 2 17 17 17 17 17 17 17 15 15 15 8 8 8 8
Unit: 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2
Analysis: XRF XRF ICP ICP XRF XRF ICP ICP ICP ICP ICP ICP ICP ICP XRF XRF ICP ICP
Rock type: Moderately plagioclase-olivine phyric basalt Moderately plagioclase-olivine phyric basalt Glass Glass Glass Glass Glass Glass Moderately plagioclase-olivine phyric basalt
Major element (wt%)
SiO2 49.16 47.89 49.71 49.58 49.58 49.21 51.08 52.18 50.33 50.96 52.38 49.58 50.34 51.20 47.96 48.03 50.42 50.52
TiO2 1.25 1.17 1.20 1.20 1.46 1.31 1.36 1.36 1.36 1.37 1.36 1.34 1.37 1.37 1.28 1.30 1.30 1.33
Al2O3 16.43 16.12 16.33 15.96 16.46 15.95 16.00 16.21 16.35 16.28 16.01 16.15 16.09 15.88 16.80 16.80 17.07 17.32
Fe2O3 9.00 8.82 8.98 8.82 9.16 9.18 9.18 9.34 9.38 9.49 9.60 9.37 9.45 9.54 9.15 9.13 9.42 9.38
MnO 0.15 0.13 0.15 0.15 0.17 0.15 0.16 0.16 0.16 0.16 0.16 0.15 0.16 0.16 0.15 0.15 0.16 0.16
MgO 7.58 7.32 7.54 7.66 7.60 7.53 8.43 8.38 8.14 8.26 8.28 8.14 8.29 8.32 6.37 6.33 6.68 6.60
CaO 11.83 11.66 11.81 11.81 11.42 11.45 11.50 11.51 11.50 11.48 11.79 11.48 11.43 11.72 11.79 11.72 12.10 12.12
Na2O 2.69 2.61 2.66 2.57 2.41 2.66 2.68 2.68 2.75 2.75 2.81 2.43 2.74 2.80 2.63 2.71 2.69 2.66
K2O 0.34 0.32 0.29 0.31 0.41 0.38 0.10 0.10 0.12 0.11 0.11 0.11 0.11 0.10 0.20 0.20 0.17 0.17
P2O5 0.12 0.12 0.14 0.14 0.12 0.12 0.16 0.15 0.15 0.15 0.14 0.15 0.14 0.14 0.13 0.13 0.16 0.14
LOI 1.19 1.19

0.97 0.97







0.86 0.86

CO2

















H2O

















Total: 99.74 97.35 98.82 98.19 99.76 98.91 100.66 102.06 100.23 101.01 102.65 98.90 100.11 101.22 97.32 97.36 100.16 100.39
Trace element (ppm)
Nb 6


6








6


Zr 91
86 85 96
99 99 96 94 94 96 95 97 96
92 91
Y 28
28 27 30
32 32 32 31 32 34 34 35 30
30 31
Sr 143
140 139 143
124 123 136 135 137 135 136 137 151
149 152
Rb 7


8








1


Zn 70


74








80


Cu 63


64








62


Ni 167
144 145 137
125 131 115 116 120 129 132 131 127
112 111
Cr 392
334 342 386
352 360 365 365 382 322 335 347 386
346 327
V 244


250








263


Ce 25


25








30


Ba

7 7

11 11 10 11 11 8 8 8

12 12
Sc

32 31

34 35 36 36 37 36 36 36

34 36

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