Table T4. Selected analyses, Site 1117.
Core, section, interval (cm): 180-1117A-11R-1, 46-53 180-1117A-12R-1, 29-34
Matrix: Gabbro Gabbro
Mineral Act-Hbl Hbl Act-Hbl Epi Epi Zoi Zoi
Major element oxide (wt%):





SiO2 47.75 45.34 48.13
37.85 37.31 49.6 41.3
Al2O3 4.23 7.25 4.69
21.51 20.87 20.09 30.39
MgO 10.62 12.75 10.78
0 0 0.44 0.1
Fe2O3 3.7 7.57 6.69
15.05 15.2 2.66 0.46
FeO 17.34 10.93 16.27
0 0 0 0
MnO 0.23 0.29 0.37
0.04 0.13 0.16 0.04
TiO2 0.95 1.05 0.67
0.16 0.08 0.01 0
CaO 10.51 9.2 8.99
23.18 22.82 23.04 21.55
Na2O 1.45 2.36 1.33
0 0 0.04 2.88
K2O 0.48 0.03 0.25
0 0.02 0.01 0
F 0.4 0.4 0.03
— — — —
Cl 0.26 0.32 0.37
— — — —
Total 97.92 97.5 98.57
97.79 96.43 96.05 96.72
Si 7.13 6.59 6.97
3.25 3.25 3.97 3.53
AlIV 0.73 1.14 0.78
0 0 0 0
AlVI 0.032 0.155 0.05
2.18 2.15 1.9 3.06
Ti 0.11 0.12 0.07
0.01 0.005 0 0
Fe2+ 1.797 1.658 1.46
0 0 0 0
Fe3+ 0.831 0.592 1.32
1.09 1.11 0.178 0.04
Mn 0.03 0.03 0.05
0.003 0.01 0.011 0.003
Mg 2.36 2.76 2.33
0 0 0.053 0.013
Ca 1.72 1.49 1.61
2.13 2.13 1.98 2.058
Na 0.43 0.694 0.393
0 0 0.01 0.478
K 0.093 0.01 0.05
0 0.002 0 0

Notes: Act-Hbl = actinolitic hornblende, Hbl = hornblende, Epi = epidote, Zoi = zoisite. — = not analyzed.