Table T3. Glass and whole-rock major and trace element compositions of basalts, Hole 1153A.


 Hole 1153A
Core, section: 7W-4 7W-4 7W-4 7W-4 7W-4 7W-4 7W-4 8R-1 8R-1 8R-1
Interval (cm): 46-50 46-50 46-50 46-50 60-65 60-65 60-65 101-102 101-102 101-102
Depth (mbsf): 247.5 247.5 247.5 247.5 247.5 247.5 247.5 268.1 268.1 268.1
Piece: 3 3 3 3 5 5 5 14 14 14
Unit: 1 1 1 1 1 1 1 1 1 1
Analysis: XRF XRF ICP ICP ICP ICP, rerun ICP, rerun ICP ICP, rerun ICP, rerun
Rock type: Aphyric basalt Glass Glass Glass Glass Glass Glass











Major element (wt%)







SiO2 48.29 46.86 51.80 50.01 47.97* 51.41 52.30 46.90* 51.21 50.87
TiO2 2.08 2.05 2.08 1.97 2.07 2.09 2.06 1.93 1.94 1.96
Al2O3 14.87 14.59 14.24 14.60 14.74 14.84 14.73 16.07 15.07 14.95
Fe2O3 12.03 11.71 12.89 12.14 12.61 12.21 12.19 12.24 12.11 12.13
MnO 0.19 0.19 0.20 0.20 0.20 0.19 0.19 0.20 0.19 0.19
MgO 6.54 6.34 7.09 6.74 8.08 7.90 7.93 8.41 8.14 8.24
CaO 10.77 10.53 10.59 10.74 11.03 10.73 10.75 11.09 11.11 10.93
Na2O 2.64 2.64 2.86 2.80 2.99 2.74 2.79 2.82 2.43 2.70
K2O 0.22 0.22 0.18 0.19 0.11 0.09 0.08 0.13 0.13 0.13
P2O5 0.20 0.19 0.22 0.22 0.20 0.17 0.19 0.22 0.16 0.18
LOI 0.89 0.89







CO2









H2O









Total: 98.72 96.21 102.16 99.61 100.00 102.35 103.22 100.00 102.50 102.29
Trace element (ppm)








Nb 6








Zr 143
144 142 171 153 146 133 109 124
Y 47
48 48 48 52 47 44 39 42
Sr 114
106 109 113 96 99 109 114 112
Rb 2








Zn 104








Cu 60








Ni 128
111 109 118 108 117 121 132 119
Cr 324
269 280 270 261 265 287 276 270
V 355








Ce 38








Ba

11 11 8 5 5 8 9 8
Sc

38 40
40 39
32 36

Notes: Glass samples were rerun later in the course of Leg 187. Only the averages of these rerun analyses are plotted. * = SiO2 by difference for ICP-AES; LOI = loss on ignition. This table is also available in ASCII format.