Location of the Philippine Sea Geotraverse

Geophysical Center of the Russian Academy of Sciences, Moscow, Russia
World Data Center for Solid Earth Physics
The Geotraverse Project

The Philippine Sea Geotraverse


Table 1.
Chemical Composition of the Magellan Seamounts Rocks ( Vasiliev et al., 1985 )
(oxides,  %;   microelements,   g/t)

Substance H-1 H-1/2 H-1/2 a H-1/4 H-1/5 H-1/7 H-1/7 a H-1/8 H-1/8 a H-1/9 H-1/10 H-1/12 H-1/14 H-1/20 H-1/21 H-1/21 a H-1 b H-2 H-2/1 H-2/2 H-4 H-4/1 H-4/2 H-4/7
SiO 2 48.24 48.55 46.66 48.32 48.35 49.27 43.90 49.95 49.16 46.79 44.63 46.80 47.64 48.88 48.54 46.19 48.09 45.37 49.49 44.61 48.00 47.23 47.53 42.63
TiO 2 3.00 2.44 2.21 2.08 2.43 2.34 2.10 2.45 2.36 2.04 3.55 2.60 2.75 1.70 1.90 1.64 2.76 2.24 2.69 2.43 2.30 2.75 2.24 2.09
Al 2 O 3 17.28 15.60 13.73 15.94 16.80 16.04 14.30 15.69 15.28 16.41 16.46 17.80 15.16 14.03 14.89 12.74 14.68 16.05 16.73 19.08 15.81 16.49 15.06 11.73
Fe 2 O 3 9.56 5.17 1.12 9.88 7.05 3.75 6.78 3.19 3.88 10.41 3.07 7.84 2.86 0.48 1.82 2.06 1.94 9.27 3.41 9.28 5.30 7.30 5.89 5.59
FeO 2.35 4.98 8.06 0.42 2.83 5.96 4.16 5.93 5.17 2.43 6.09 2.38 7.13 8.47 7.37 6.81 8.44 2.05 4.87 1.26 1.98 0.86 5.19 3.92
MnO 0.17 0.10 0.11 0.07 0.10 0.11 0.32 0.08 0.08 0.08 0.34 0.53 0.25 0.15 0.14 0.10 0.13 0.09 0.04 0.24 0.18 0.50 0.58 0.13
MgO 1.11 6.67 7.78 3.40 4.55 4.75 7.74 5.63 5.90 3.73 6.36 3.13 5.50 8.99 6.89 8.88 5.49 2.68 2.82 2.85 6.49 5.13 5.85 5.30
CaO 5.61 6.49 4.31 3.32 6.00 6.83 3.63 7.35 5.93 5.66 4.28 5.75 8.26 7.21 9.27 6.49 6.63 8.89 8.08 5.53 6.59 5.73 9.27 9.50
Na 2 O 3.48 3.32 2.79 3.18 3.49 3.49 2.73 3.31 2.84 2.80 2.94 3.25 3.21 2.49 2.62 2.67 3.02 3.86 3.13 3.05 3.82 3.95 2.65 2.38
K 2 O 2.86 1.78 1.75 1.96 2.06 2.00 1.90 1.89 1.81 1.43 2.03 1.95 2.21 1.35 1.21 1.57 2.20 2.32 2.17 2.01 1.31 1.64 0.95 1.57
P 2 O 5 1.30 0.69 0.62 0.84 0.88 0.99 0.58 0.75 0.65 0.63 0.94 0.94 0.74 0.42 0.43 0.42 1.07 1.94 1.77 1.31 0.09 0.00 0.68 0.44
H 2 O -- 0.90 0.97 3.65 2.57 1.07 1.39 3.90 0.49 2.36 3.02 1.97 1.90 0.79 0.75 1.00 2.89 0.99 1.12 1.44 1.95 1.86 2.39 1.36 3.78
H 2 O + 3.60 3.21 7.04 7.73 4.61 3.63 8.02 3.70 4.81 4.76 7.34 5.00 3.99 4.24 3.56 7.56 4.01 3.56 2.76 5.97 6.48 5.60 3.05 6.59
                                                 
Total: 99.46 99.87 99.83 99.71 100.22 100.55 100.19 100.41 100.23 100.21 100.00 99.87 100.49 99.61 99.59 100.02 99.45 99.44 99.39 99.57 99.94 99/57 100.30 99.73
                                                 
Ni 80 95 130 65 105 100 150 130 100 135 75 140 140 250 280 150 140 130 83 130 80 150 130 45
Co 32 25 36 18 28 40 79 32 23 35 42 138 50 38 45 36 28 15 18 60 30 91 79 16
Cr 63 250 190 125 270 300 210 330 240 400 300 300 300 450 530 270 160 350 210 400 350 450 150 63
V 122 148 80 48 140 100 78 138 87 66 115 178 155 178 220 83 126 200 150 150 160 140 138 69
Cu 83 55 62 51 60 66 81 50 43 83 41 89 78 50 83 47 66 94 67 57 130 130 100 30
Pb 45 13 8 9 9 33 25 15 18 17 8 37 23 8 250 25 20 19 22 48 12 40 43 3
Zn 75 70 48 40 80 65 50 91 50 17 91 80 74 85 100 40 210 91 76 83 110 186 79 24
Sn 4 3 3 2 2 3 3 3 3 48 3 3 3 3 4 3 4 4 3 3 3 3 3 2
Mo 4 2.3 1.3 1.0 2 2.7 3 3 2.4 1 2.4 9 4 2.5 2.5 1 9 2.5 3 6 1.6 6 6 0.8
Mo 63 24 33 50 32 27 30 21 21 62 47 83 40 25 63 25 83 100 76 240 24 71 52 35
H-1/2 a ,  H-1/7 a ,  H-1/8 a ,  H-1/21 a   -   basalt tuff-breccia
H-2 - olivine-pyroxene basalt
H-2/1 - pyroxene-plagioclase basalt
Other samples - olivine-plagioclase basalt
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