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Table T5. Comparisons of trace element abundances. (See table note.)

  BAS-206 BAS-312
Expedition 312
(avg.)		 This study
(avg.)		 Expedition 312
(avg.)		 This study
(avg.)
Element oxide (wt%):
SiO2 49.35 49.24 49.86 49.5
TiO2 2.09 2.10 1.33 1.336
Al2O3 13.87 13.86 15.41 15.445
Fe2O3 14.58 14.73 10.77 10.877
MnO 0.26 0.26 0.18 0.184
MgO 6.73 6.71 7.79 7.752
CaO 9.92 9.79 11.89 11.819
Na2O 2.83 2.71 2.44 2.351
K2O 0.18 0.20 0.05 0.077
P2O5 0.19 0.17 0.09 0.11
Total: 100.00 99.76 99.83 99.45
Element (ppm):
Sc 42.59 51.7 39.99 45.8
V 421.96 465.1 295.38 321.3
Cr 73.28 84.6 259.03 252.2
Co 50.78 55.1 44.27 46.7
Ni 45.50 50.7 88.12 88.9
Zn 99.29 133.0 82.75 89.3
Sr 99.16 101.9 98.85 101.1
Y 34.14 50.2 24.65 30.8
Zr 111.19 128.5 71.43 79.2
Ba 42.75 42.2 9.54 12.2

Note: Average (avg.) values from Expedition 312 from Teagle et al. (2006).

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