Table T1. Basaltic glass composition.
Identification
Geochemical
group
Element oxides (wt%)
SiO2
TiO2
Al2O3
Fetotal
MnO
MgO
CaO
Na2O
K2O
P2O5
S
Total
RM_1H2 H 49.94 1.477 15.022 10.392 0.199 7.617 12.164 2.398 0.08 0.135 0.127 99.552
RM_1J1 50.26 1.46 15.119 10.207 0.178 7.466 12.204 2.483 0.082 0.118 0.119 99.696
RM2_G1 49.995 1.488 15.159 10.261 0.184 7.572 12.189 2.497 0.084 0.12 0.129 99.68
RM2_F2 50.006 1.478 15.195 10.156 0.198 7.611 12.151 2.501 0.09 0.111 0.122 99.619
RM3C4 ave 50.012 1.45 15.235 9.942 0.176 7.583 12.078 2.425 0.088 0.086 0.12 99.194
RM 4 H 1 50.12 1.477 15.113 10.271 0.193 7.633 12.285 2.417 0.082 0.114 0.136 99.839
RM_5_D9 50.058 1.501 14.919 10.344 0.2 7.632 12.065 2.496 0.082 0.091 0.127 99.514
RM_5_E3 50.203 1.458 14.98 10.352 0.191 7.671 12.091 2.489 0.086 0.105 0.124 99.751
RM_5_F6 50.956 1.486 14.275 10.476 0.189 7.704 12.314 2.481 0.086 0.122 0.122 100.21
RM_5_I_12 50.153 1.442 14.721 10.313 0.192 7.668 11.984 2.497 0.086 0.122 0.119 99.297
RM_5_H_2 50.674 1.453 14.896 10.27 0.163 7.695 12.041 2.479 0.089 0.13 0.128 100.019
KA2 B 3 50.722 1.492 14.892 10.421 0.186 7.542 12.15 2.506 0.087 0.131 0.127 100.255
KA3 J 5 50.197 1.44 15.087 10.169 0.189 7.638 12.194 2.465 0.085 0.106 0.126 99.697
KA3 H 7 50.355 1.457 15.091 10.098 0.185 7.658 12.206 2.452 0.085 0.119 0.131 99.835
KA3 G 9 50.277 1.453 15.146 10.268 0.187 7.671 12.113 2.541 0.081 0.124 0.123 99.983
19R2-16 50.628 1.482 14.614 9.904 0.145 7.594 12.337 2.539 0.082 0.135 0.134 99.909
RM_1I2 M 50.714 1.736 14.616 10.872 0.22 6.71 11.662 2.726 0.107 0.145 0.138 99.645
RM_1F4 50.381 1.73 14.335 11.285 0.227 6.89 11.589 2.582 0.107 0.148 0.143 99.418
RM_1C2 50.944 1.729 14.354 11.039 0.191 6.991 11.745 2.606 0.11 0.151 0.142 100.002
RM_1C3 50.889 1.688 14.548 10.843 0.192 7.068 11.76 2.561 0.108 0.147 0.147 99.949
RM_1A3 51.406 1.679 14.52 10.871 0.19 7.075 11.801 2.575 0.102 0.125 0.139 100.484
RM_1B2 50.816 1.709 14.507 10.912 0.193 7.089 11.833 2.561 0.102 0.122 0.134 99.978
RM_1D2 50.923 1.692 14.367 10.923 0.192 7.118 11.775 2.541 0.099 0.154 0.134 99.916
RM_1H3 50.076 1.756 14.721 10.978 0.209 7.124 11.639 2.649 0.098 0.15 0.14 99.541
RM_1C1 50.135 1.743 14.821 10.866 0.204 7.128 11.643 2.671 0.096 0.158 0.13 99.596
RM_1D3 51.179 1.668 14.429 10.782 0.204 7.138 11.835 2.516 0.093 0.155 0.13 100.128
RM_1G3 50.138 1.677 14.519 10.875 0.206 7.14 11.81 2.525 0.102 0.142 0.141 99.275
RM_1E1 50.911 1.668 14.396 10.788 0.189 7.14 11.867 2.511 0.104 0.149 0.14 99.861
RM_1C4 50.732 1.687 14.513 10.825 0.195 7.143 11.879 2.539 0.103 0.123 0.142 99.881
RM_1E3 51.13 1.673 14.323 10.775 0.191 7.143 11.889 2.504 0.106 0.138 0.142 100.013
RM_1A2 50.407 1.677 14.542 10.748 0.189 7.145 11.799 2.559 0.097 0.131 0.138 99.431
RM_1E2 50.704 1.76 14.677 10.827 0.214 7.148 11.638 2.645 0.103 0.148 0.14 100.004
RM_1F2 50.413 1.657 14.469 10.843 0.217 7.151 11.889 2.502 0.099 0.13 0.139 99.507
RM_1G2 50.162 1.783 14.767 10.847 0.216 7.152 11.674 2.638 0.105 0.155 0.137 99.637
RM_1F3 51.029 1.648 14.435 10.79 0.19 7.156 11.816 2.495 0.099 0.132 0.139 99.929
RM_1F1 50.56 1.655 14.458 10.86 0.202 7.176 11.855 2.532 0.099 0.128 0.138 99.661
RM_1H1 50.355 1.674 14.479 10.911 0.195 7.184 11.803 2.52 0.104 0.156 0.137 99.517
RM_1H4 50.412 1.675 14.413 10.826 0.192 7.186 11.829 2.514 0.109 0.126 0.137 99.42
RM2_I2 50.313 1.75 14.37 11.014 0.199 7.013 11.714 2.689 0.097 0.174 0.131 99.464
RM_1J3 50.008 1.741 14.99 10.747 0.182 7.032 11.642 2.766 0.101 0.166 0.133 99.509
RM2_A4 50.049 1.752 14.908 10.697 0.182 7.048 11.646 2.774 0.108 0.151 0.142 99.457
RM_1I3 50.43 1.686 14.598 10.835 0.182 7.061 11.771 2.659 0.094 0.123 0.127 99.567
RM_1J4 49.925 1.752 15.084 10.854 0.201 7.061 11.659 2.816 0.103 0.156 0.14 99.752
RM2_I3 50.176 1.774 14.397 11.031 0.203 7.064 11.706 2.707 0.106 0.149 0.135 99.431
RM_1I4 50.484 1.696 14.677 10.752 0.231 7.073 11.822 2.67 0.091 0.134 0.136 99.765
RM2_A3 50.457 1.67 14.635 10.633 0.178 7.093 11.84 2.611 0.105 0.124 0.127 99.474
RM_1J2 50.544 1.655 14.624 10.67 0.199 7.098 11.875 2.64 0.095 0.137 0.131 99.667
RM2_E1 50.442 1.688 14.487 10.822 0.191 7.108 11.812 2.643 0.101 0.154 0.132 99.58
RM2_H4 50.352 1.674 14.615 10.764 0.185 7.108 11.863 2.643 0.103 0.146 0.139 99.592
RM2J2 49.855 1.752 14.836 10.881 0.201 7.117 11.66 2.77 0.098 0.155 0.135 99.46
RM2_D1 49.91 1.761 14.953 10.783 0.211 7.118 11.661 2.779 0.106 0.137 0.133 99.553
RM2J4 50.489 1.681 14.584 10.669 0.201 7.134 11.859 2.637 0.1 0.124 0.133 99.611
RM2_H3 49.751 1.766 14.943 10.82 0.208 7.155 11.685 2.819 0.113 0.148 0.131 99.539
RM2_G2 50.043 1.661 14.621 10.816 0.196 7.157 11.927 2.611 0.096 0.147 0.135 99.411
RM2_G3 50.164 1.674 14.638 10.786 0.184 7.163 11.82 2.648 0.111 0.132 0.13 99.451
RM2J3 50.02 1.663 14.64 10.915 0.191 7.168 11.848 2.66 0.104 0.154 0.126 99.488
RM2J1 49.984 1.674 14.536 10.827 0.206 7.181 11.802 2.639 0.104 0.122 0.132 99.206
RM3D5 ave 50.526 1.712 14.423 10.643 0.199 6.99 11.593 2.574 0.1 0.13 0.126 99.017
RM3F2 ave 50.61 1.702 14.754 10.714 0.193 6.997 11.597 2.603 0.104 0.118 0.137 99.529
RM3C2 ave 50.302 1.708 14.457 10.783 0.195 7.007 11.577 2.598 0.101 0.138 0.128 98.995
RM3E5 ave 51.001 1.658 14.605 10.537 0.212 7.048 11.687 2.579 0.104 0.136 0.136 99.704
RM3G2 ave 51.359 1.648 15.058 10.423 0.188 7.048 11.716 2.552 0.107 0.132 0.13 100.361
RM3B3 ave 50.288 1.723 14.93 10.543 0.19 7.091 11.577 2.73 0.104 0.144 0.13 99.45
RM3C3 ave 50.592 1.657 14.668 10.416 0.19 7.091 11.673 2.543 0.103 0.114 0.13 99.176

Notes: Microprobe analyses performed at School of Ocean and Earth Sciences and Technology, University of Hawaii. Identification is the location of randomly sampled chips in the plastic mounts. Most values are the arithmetic mean of four analyses per chip. * = three analyses per chip. Only a portion of this table appears here. The complete table is available in ASCII.