Table T1. Selected analyses of clinopyroxenes, Sites 1109, 1118, and 1117. (Continued on next page.)

Core, section,
interval (cm):
180-1109D-41R-3, 72-74 180-1109D-48R-3, 63-69 180-1109D-51R-4, 6-9 180-1117A-11R-1, 40-44
Matrix: Basalt
Coarse-grained diabase Fine-grained diabase Gabbro
Analysis number: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Major element oxide (wt%):                                
SiO2 52.66 50.77
51.54 52.98 52.34 53.43 52.79 53.53 53.62
49.91 51.12 51.22
50.92 50.62 49.80
TiO2 0.49 0.94
0.72 0.66 0.63 0.73 0.66 0.72 0.65
0.98 0.88 0.78
0.56 0.85 0.00
Cr2O3 0 0
0.12 0.54 0.61 0.32 0.63 0.63 0.72
0 0 0.34
0.00 0.00 0.00
Al2O3 2.65 3.82
3.13 3.27 3.25 3.23 3.2 3.15 3.31
3.62 2.11 2.03
2.01 2.30 0.15
FeO(tot) 6.44 7.45
6.35 5.97 6 6.36 6.06 6.1 6.48
11.24 12.34 13.02
16.13 12.53 23.06
Fe2O(C) 1.22 0.09
0 0 0 0 0 0 0
2.7 0.83 1.03
0.65 1.01 0.49
FeO(C) 5.34 7.37
6.35 5.97 6 6.36 6.06 6.48 6.48
8.81 11.6 12.09
15.54 11.63 22.62
MnO 0.2 0.17
0.19 5.97 0.13 0.15 0.16 0.16 0.15
0.28 0.28 0.34
0.38 0.32 0.60
MgO 17.26 15.92
16.52 16.03 16.15 16.81 16.63 16.7 17.03
16.21 14.74 14.85
12.47 14.42 6.90
NiO 0 0
0.04 0 0 0.04 0.04 0.08 0
0 0 0
0.00 0.00 0.00
CaO 19.67 19.52
19.57 20.33 20.13 20.12 19.74 19.67 18.85
17.62 18.04 17.5
17.53 17.94 18.43
Na2O 0.24 0.27
0.25 0.29 0.21 0.25 0.21 0.21 0.28
0 0.28 0.27
0.29 0.28 0.18
Total 99.61 98.97
99.21 100.27 99.45 101.44 100.13 100.96 101.09
100.13 99.79 99.99
100.29 99.25 99.11
Si 1.934 1.892
1.9085 1.9415 1.933 1.9321 1.9348 1.9471 1.9455
1.864 1.924 1.927
1.937 1.918 1.994
Ti 0.014 0.026
0.0199 0.0182 0.0175 0.0199 0.0182 0.0196 0.0178
0.028 0.025 0.022
0.016 0.024 0
Cr 0 0
0.0035 0.0157 0.0178 0.009 0.0184 0.0182 0.0207
0 0 0
0 0 0
Al(IV) 0.0844 0.1067
0.0799 0.0666 0.0738 0.0725 0.0727 0.0706 0.055
0.136 0.076 0.073
0.063 0.082 0.006
Al(VI) 0.049 0.06
0.045 0.083 0.074 0.07 0.073 0.082 0.087
0.024 0.025 0.016
0.028 0.021 0.001
Fe3+ 0.034 0.0025
0 0 0 0 0 0 0
0.0755 0.0232 0.0292
0.0186 0.0286 0.0148
Fe2+ 0.1661 0.299
0.1978 0.1822 0.1846 0.1919 0.185 0.1953 0.1975
0.2739 0.3647 0.3786
0.4939 0.3639 0.7567
Mn 0.006 0.005
0.006 0.0059 0.0042 0.0045 0.0051 0.0048 0.0047
0.009 0.009 0.011
0.012 0.01 0.02
Mg 0.945 0.885
0.9115 0.8753 0.8889 0.906 0.9084 0.9055 0.9212
0.903 0.827 0.833
0.708 0.815 0.412
Ni 0 0
0.0012 0 0 0.0011 0.0011 0.0024 0
0 0 0
0 0 0
Ca 0.774 0.779
0.7761 0.7981 0.7966 0.7794 0.7752 0.7666 0.7327
0.705 0.728 0.705
0.715 0.728 0.791
Na 0.017 0.02
0.0183 0.0209 0.0153 0.0176 0.0146 0.015 0.0193
0.019 0.02 0.02
0.021 0.02 0.014
%Wo 40.3 41
38.8 41.7 41 39.9 37.7 40.15 34.8
35.8 37.3 36
36.7 37.3 39.6
%En 49.1 46.5
50.3 48.2 48.7 49.5 49.8 49.6 46.1
45.9 42.4 42.5
36.3 41.8 40.6
%Fs 10.6 12.5
10.8 10 10.2 10.5 10.2 10.2 18.3
18.3 20.3 21.5
27 20.9 20.7

Note: Wo = wollastonite, En = enstatite, Fs = ferrosilite.