Initial Reports, Volume 206 Ms 206IR-103 Chapter 3, Table T31. Average maximum grain size of igneous Units 1256C-18 and 1256D-1. Notes: W/L = width/length. EQD = diameter of a circle with equivalent area to a crystal. * = grain sizes of recrystallized flow-lobe margin and adjacent lava above and below. Thin section Depth (mbsf) Plagioclase: Length (mm) Width (mm) Area (mm2) W/L EQD Montmorillonite: Length (mm) Width (mm) Area (mm2) W/L EQD Clinopyroxene: Length (mm) Width (mm) Area (mm2) W/L EQD Unit 1256C-18 27 281.5 0.567 0.059 0.033 0.112 0.204 0.224 0.053 0.012 0.243 0.122 28 282.1 1.046 0.115 0.119 0.113 0.389 0.78 0.122 0.09 0.171 0.338 29 282.6 1.197 0.131 0.163 0.116 0.456 0.866 0.126 0.111 0.147 0.376 30 284.8 1.135 0.156 0.182 0.136 0.481 0.877 0.201 0.172 0.237 0.468 31 285.3 1.472 0.27 0.393 0.188 0.707 0.946 0.31 0.299 0.345 0.617 32 286 1.308 0.318 0.408 0.252 0.721 0.916 0.362 0.328 0.41 0.646 33 286.5 1.34 0.296 0.393 0.232 0.707 1 0.27 0.284 0.281 0.601 34 287.1 1.322 0.32 0.435 0.239 0.744 0.908 0.298 0.28 0.338 0.597 35 287.6 1.982 0.466 0.862 0.257 1.048 1.48 0.33 0.495 0.233 0.794 36 288.2 1.716 0.546 0.945 0.351 1.097 1.412 0.322 0.474 0.244 0.777 37 288.7 2.696 0.534 1.534 0.211 1.398 1.418 0.494 0.713 0.334 0.953 38 289.3 1.818 0.456 0.855 0.256 1.044 1.66 0.452 0.756 0.272 0.981 39 289.9 2.328 0.52 1.247 0.223 1.26 1.602 0.476 0.821 0.297 1.022 40 290.5 1.366 0.258 0.369 0.192 0.686 1.468 0.4 0.568 0.301 0.851 41 291.1 1.682 0.446 0.746 0.306 0.975 0.736 0.366 0.268 0.518 0.584 42 291.7 2.568 0.998 2.476 0.406 1.775 0.838 0.316 0.247 0.434 0.561 43 292.4 2.07 0.824 1.697 0.413 1.47 0.904 0.298 0.277 0.353 0.593 44 292.9 1.87 0.688 1.344 0.383 1.308 1.268 0.386 0.533 0.288 0.823 45 293.4 1.662 0.436 0.718 0.274 0.956 1.022 0.322 0.32 0.348 0.639 46 293.8 1.588 0.408 0.649 0.259 0.909 0.802 0.26 0.209 0.334 0.516 47 294 1.704 0.494 0.886 0.306 1.062 0.97 0.344 0.329 0.383 0.647 48 294.3 1.674 0.408 0.674 0.261 0.927 0.648 0.334 0.221 0.528 0.531 49 294.7 1.742 0.624 1.079 0.376 1.172 0.786 0.2 0.158 0.254 0.449 50 294.3 1.566 0.448 0.71 0.289 0.951 0.768 0.218 0.171 0.301 0.467 51 294.9 1.584 0.362 0.556 0.249 0.841 0.83 0.286 0.241 0.348 0.553 52 295.5 1.768 0.49 0.834 0.292 1.03 1.258 0.376 0.452 0.31 0.759 53 296 1.772 0.374 0.71 0.209 0.951 0.876 0.42 0.361 0.487 0.678 54 296.4 1.474 0.302 0.459 0.213 0.764 1.016 0.396 0.39 0.415 0.705 55 296.9 1.774 0.3 0.551 0.175 0.837 0.84 0.336 0.275 0.428 0.592 56 297.3 1.592 0.312 0.488 0.204 0.789 0.806 0.316 0.238 0.421 0.55 57 297.8 1.618 0.414 0.682 0.259 0.932 0.832 0.366 0.32 0.466 0.638 58 298.3 1.826 0.48 0.916 0.261 1.08 0.764 0.368 0.277 0.51 0.594 59 298.9 1.514 0.314 0.453 0.215 0.76 0.848 0.388 0.317 0.51 0.635 60 299.6 1.434 0.256 0.374 0.176 0.69 0.82 0.44 0.361 0.571 0.678 61 300 1.718 0.366 0.628 0.228 0.894 0.742 0.422 0.322 0.598 0.64 62 300.7 1.29 0.338 0.444 0.278 0.752 0.69 0.44 0.31 0.638 0.628 63 300.9 1.42 0.432 0.621 0.296 0.889 0.754 0.374 0.29 0.531 0.607 64 303.9 1.774 0.34 0.637 0.195 0.9 0.848 0.43 0.378 0.524 0.693 65 304.4 1.37 0.248 0.362 0.183 0.679 0.742 0.428 0.33 0.569 0.648 66 305 1.4 0.35 0.493 0.24 0.792 0.928 0.516 0.497 0.574 0.796 67 305.6 1.364 0.276 0.369 0.208 0.685 0.858 0.43 0.366 0.554 0.683 68 306.2 1.524 0.356 0.526 0.251 0.818 0.828 0.428 0.354 0.536 0.671 69 306.9 1.364 0.276 0.369 0.208 0.685 0.914 0.592 0.579 0.663 0.859 70 307.4 1.44 0.314 0.468 0.205 0.772 0.816 0.406 0.337 0.519 0.655 71 308 1.562 0.26 0.41 0.169 0.723 0.7 0.372 0.278 0.554 0.595 72 308.6 1.778 0.272 0.482 0.163 0.783 0.862 0.434 0.387 0.527 0.702 73 309.3 1.804 0.288 0.528 0.168 0.82 1.084 0.528 0.603 0.52 0.876 74 309.9 1.756 0.356 0.63 0.212 0.896 1.1 0.602 0.646 0.593 0.907 75 310.4 1.534 0.214 0.327 0.141 0.645 1.056 0.508 0.523 0.505 0.816 76 311.2 1.336 0.26 0.352 0.201 0.669 0.732 0.316 0.226 0.472 0.537 77 311.7 1.512 0.282 0.449 0.191 0.756 0.811 0.297 0.234 0.385 0.546 78 311.9 0.795 0.103 0.082 0.131 0.322 0.443 0.133 0.058 0.301 0.272 79 312.1 0.027 0.014 0.0004 0.55105 0.022 0.0975 0.0775 0.00763 0.7923 0.099 0.027 0.016 0.00044 0.62 0.024 80 312.4 0.0316 0.0148 0.00047 0.46358 0.025 0.0304 0.022 0.00068 0.7318 0.03 0.02 0.013 0.00026 0.666 0.018 81 312.8 0.0166 0.008 0.00013 0.57706 0.013 0.0178 0.0116 0.0002 0.6825 0.016 0.016 0.012 0.0002 0.758 0.016 82 313 0.03 0.0128 0.00041 0.44008 0.023 0.0168 0.0116 0.00019 0.7112 0.016 0.014 0.011 0.00016 0.794 0.014 83 313.3 0.02 0.0056 0.00011 0.30434 0.012 0.0132 0.009 0.00012 0.6952 0.012 0.013 0.009 0.00011 0.712 0.012 84 313.3 0.0122 0.0078 0.0001 0.6221 0.011 0.014 0.008 0.00011 0.593 0.012 Unit 1256D-1 90 276.6 1.312 0.222 0.288 0.177 0.606 91 277 1.236 0.206 0.247 0.172 0.561 92 281.4 3.01 0.498 1.535 0.189 1.398 93 286 2.122 0.612 1.269 0.295 1.271 94 288.5 2.088 0.552 1.184 0.267 1.228 96 289.8 1.554 0.35 0.519 0.242 0.813 95 293.9 1.746 0.488 0.859 0.273 1.046 97 300.8 1.536 0.274 0.415 0.182 0.727 98 303.4 1.56 0.308 0.463 0.201 0.767 99 307.5 1.914 0.394 0.742 0.221 0.972 100 315.4 1.6 0.33 0.533 0.211 0.824 101 319.6 1.82 0.348 0.611 0.198 0.882 102 324.1 1.634 0.26 0.447 0.164 0.755 103 328.4 1.394 0.276 0.378 0.199 0.693 104 328.5 1.47 0.25 0.354 0.174 0.671 105 329.2 1.642 0.248 0.415 0.149 0.727 106 334.9 1.388 0.248 0.36 0.18 0.677 107 349.9 2.048 0.21 0.428 0.106 0.739 138* Host lobes within 4 mm above and below the seal zone Recrystallized montmorillonite has unimodal size Recrystallized clinopyroxene is bimodal Upper flow 0.455 0.053 0.098 0.171 0.168 0.096 0.52 0.144 Recrystallized 0.0174 0.0142 0.8266 0.0177 0.012 0.009 0.771 0.012 Coarse part Recrystallized 0.006 0.005 0.785 0.006 Fine part Lower flow 0.643 0.1 0.13 0.2874 0.251 0.147 0.515 0.218