Table T5. Glass and whole-rock major and trace element compositions of basalts, Site 1152.


 Hole 1152A Hole 1152B
Core, section: 1R-1 1R-1 1R-1 1R-1 1R-1 2R-1 2R-1 2R-1 3R-1 3R-1 4R-1 4R-1 4R-1 5R-1 5R-1 5R-1 5R-1 5R-1
Interval (cm): 30-34 30-34 30-34 60-62 60-62 10-13 10-13 10-13 2-4 2-4 57-61 57-61 57-61 44-47 44-47 44-47 68-74 68-74
Depth (mbsf): 0.30 0.30 0.30 0.60 0.60 22.70 22.70 22.70 29.82 29.8 36.37 36.37 36.37 41.24 41.24 41.24 41.48 41.48
Piece: 3 3 3 8 8 2 2 2 1 1 10 10 10 9 9 9 13 13
Unit: 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2
Analysis: XRF XRF ICP ICP ICP XRF XRF ICP ICP ICP XRF XRF ICP XRF XRF ICP ICP ICP
Rock type: Aphyric basalt Glass Glass Aphyric basalt Glass Glass Moderately plagioclase-clinopyroxene phyric basalt Moderately plagioclase-clinopyroxene phyric basalt Glass Glass
Major element (wt%)















SiO2 48.71 48.86 49.60* 50.50 50.12 48.88 49.01 51.70* 51.60 52.36 50.06 50.21 52.76* 49.78 50.43 53.59* 50.90 52.19
TiO2 2.03 2.06 2.13 2.02 2.02 1.54 1.55 1.56 1.68 1.65 1.65 1.68 1.66 1.67 1.70 1.61 1.81 1.81
Al2O3 14.35 14.21 13.69 14.42 14.46 14.54 14.63 14.24 15.09 15.04 15.31 15.49 15.50 15.59 15.58 15.41 14.86 14.74
Fe2O3 11.20 11.14 12.55 11.44 11.60 10.97 10.97 11.41 10.73 10.64 8.48 8.69 8.78 8.94 8.92 9.06 11.16 11.51
MnO 0.16 0.16 0.18 0.18 0.18 0.16 0.16 0.16 0.16 0.18 0.16 0.17 0.17 0.17 0.17 0.17 0.19 0.19
MgO 5.89 5.89 6.52 7.32 7.24 6.49 6.51 6.90 7.97 7.71 6.16 6.19 6.32 6.20 6.29 6.29 7.30 7.43
CaO 10.39 10.40 10.76 10.45 10.29 11.18 11.23 10.88 11.73 11.79 11.54 11.54 11.40 11.51 11.60 10.82 11.48 11.36
Na2O 2.90 2.97 3.73 3.01 3.08 2.60 2.56 2.38 2.60 2.92 2.83 2.82 2.89 2.74 2.83 2.61 3.02 3.08
K2O 0.51 0.51 0.58 0.23 0.22 0.57 0.57 0.61 0.16 0.17 0.33 0.33 0.36 0.29 0.30 0.27 0.19 0.18
P2O5 0.23 0.22 0.26 0.24 0.22 0.16 0.16 0.15 0.18 0.18 0.16 0.16 0.17 0.17 0.17 0.16 0.19 0.15
LOI 1.52 1.52


1.04 1.04


0.21 0.21
0.07 0.07


CO2

















H2O

















Total: 97.89 97.94 100.00 99.83 99.43 98.13 98.39 100.00 101.90 102.63 96.89 97.49 100.00 97.13 98.06 100.00 101.09 102.64
Trace element (ppm)















Nb 10 7


8 4


9 6
9 6


Zr 160 161 191 146 159 118 118 132 118 130 131 133 148 128 130 142 135 124
Y 44 45 48 45 45 36 35 36 40 38 39 40 39 38 38 39 39 42
Sr 138 139 147 129 129 134 133 136 135 129 160 158 162 160 159 160 139 141
Rb 8 9


15 15


3 3
2 3


Zn 100 101


87 87


95 94
86 87


Cu 62 62


73 72


64 63
74 74


Ni 118 119 108 106 97 70 68 63 71 75 78 77 70 107 106 90 58 62
Cr 250 254 235 232 218 383 382 307 288 322 302 300 261 290 284 225 240 233
V 328 335


311 313


300 300
304 309


Ce 42 43


36 33


42 40
39 38


Ba

40 14 14

16 9 10

26

24 11 11
Sc


35 39


39 43





42 43

Notes: Data tables for every site report the XRF major element analysis from two fused disks and trace element analyses from a single pressed-powder pellet, all made from splits of a single sample powder. A split of the same whole-rock powder was also analyzed by ICP-AES for major and trace elements. Reported ICP-AES results are repeated analyses of a single solution measured two or three times during a run. ICP-AES whole-rock data are suspect for Site 1152. However, the glasses have been sampled, dissolved, and analyzed a second time and are considered reliable. * = SiO2 by difference for ICP-AES; LOI = loss on ignition. This table is also available in ASCII format.